Dioxy Thiophene Research Articles

A novel electropolymerized molecularly imprinted dual-mode sensor for bisphenol AF detection in pond mud

Recently, bisphenol AF (BPAF) as most commonly used bisphenol A analogs had the increasing higher level in the environment with unknown risks. Herein, a synchronous dual-mode sensor had been established based on differential pulse voltammetry (DPV) and electrochemiluminescence (ECL) for the detection of BPAF in pond mud. Firstly, the sensing molecularly imprinted polymer (MIP) films were prepared by electrochemical polymerization procedure with 3,4-ethoxylene dioxy thiophene (EDOT) as the functional monomer, BPAF as the template molecule and MXene as the supporting electrolyte. Due to unique characters of PEDOT and MXene, the constructed MIP films were stable and highly conductive. Meanwhile, zinc-doped bismuth sulfide quantum dots (Zn-Bi2S3 QDs) were synthesized as a nano-emitter to generate strong ECL signals in the MIP film. In the sensing process, a pulsed voltage applied to the PEDOT/MXene MIP film to generate both DPV and ECL signals for simultaneous dual-mode detection. Additionally, the liquid-liquid extraction with deep eutectic solvent (menthol: octanol 1:1) was used for the pre-concentration of the BPAF in the pond mud. Based on the sensing system, the ECL and DPV response showed the good linear relationships with the concentration of BPAF with the ranges of 0.01 μM–50 μM and 0.1 μM–50 μM and the detection limits of 0.0060 μM and 0.059 μM, respectively.

Unlocking the plasma advantage in elevating the performance of silicon nanowires/ poly(3,4-ethylenedioxythiophene): Poly(styrenesulfonate) hybrid solar cell

Silicon Nanowires (SiNWs) can be easily synthesized by following the two-step electroless metal-assisted chemical etching method. These SiNWs are well known for their low reflectivity due to their excellent light-harvesting characteristics. In this paper, we demonstrated the effect of plasma treatment time on the performance of SiNWs solar cells. The 1 min plasma-treated SiNWs/Poly 3,4-[ethylene dioxy thiophene:Polystyrene sulfonate] (PEDOT׃PSS) solar cell showed increased power conversion efficiency than the untreated SiNWs/PEDOT׃PSS solar cell. The photo Current density-Voltage (J-V) analysis showed that the open circuit voltage (VOC) of the plasma treated solar cell for 1 min is higher (270 mV) than that of the untreated solar cell (120 mV). The increase in the value of VOC comes from different factors׃ one is due to the formation of a good interface between the SiNWs and PEDOT׃PSS layer; other is the reduction of defect densities in SiNWs/PEDOT׃PSS heterojunction, consequently the reduction in the recombination processes. Hence from this research, we found that by controlling the plasma treatment on SiNWs, it can improve the SiNWs properties which can further improve the efficiency of the solar cell.

A universal strategy for producing 2D functional carbon-rich materials from 2D porous organic polymers for dual-carbon lithium-ion capacitors

Two-dimensional (2D) carbon materials have attracted enormous attention, but the complicated synthesis methods, inhomogeneous structure and uncontrollable properties still limit their use. Here we report a universal protocol for fabricating a series of heteroatom-doped 2D porous polymers, including pyrrole and indole as nitrogen-dopant sources, and 3,4-ethoxylene dioxy thiophene as a sulfur-dopant source by a simple chemical crosslinking reaction. This bottom-up strategy allows for the large-scale synthesis of functionalized ultrathin carbon nanosheets with a high heteroatom doping content and abundant porosity. Consequently, the obtained N-doped carbon-rich nanosheets (NCNs) sample has a specific capacity of 573.4 mAh g−1 at 5 A g−1 as an anode for lithium-ion capacitors (LICs), and the optimized sample has a specific capacitance of 100.0 F g−1 at 5 A g−1 when used as a cathode for a LIC. A dual-carbon LIC device was also developed that had an energy density of 168.4 Wh kg−1 at 400 W kg−1, while maintaining outstanding cycling stability with a retention rate of 86.3% after 10 000 cycles. This approach has the potential to establish a way for the precise synthesis of substantial amounts of 2D functionalized carbon nanosheets with the desired structure and properties.

Engineering PEDOT:PSS/PEG Fibers with a Textured Surface toward Comprehensive Personal Thermal Management

The wild environment is unpredictable where soaring or plummeting temperatures in extreme weather events can pose serious threats to human lives. Incorporating passive evaporative cooling and controllable electric heating into clothing could effectively protect human beings from such harsh environments. In this work, poly(3,4-ethylene dioxy thiophene):poly(styrene sulfonate)/poly(ethylene glycol) (PPP) fibers with the core-shell structure and attractively textured surface have been successfully prepared via a single-nozzle wet-spinning technique. Results show that the fibers possess fascinating specific surface area (184.8 m2·g-1), electrical conductivity (50 S·cm-1), and stretchability (>100%) because of the novel preparation method and hierarchical morphological design. Through simple textile manufacturing routes, PPP fibers can be woven into fabrics easily, which exhibit desirable breathability, washability, and mechanical strength for smart textiles while maintaining favorable hygroscopicity. Benefiting from the textured structure with large specific surface area, PPP fabric exhibits attractile evaporative cooling rate. Practical application tests have demonstrated that under direct sunlight, the surface temperature of the PPP fabric is ∼5.2 and ∼10.8 °C lower than commercial cotton and polyester fabrics, respectively. Meanwhile, as conductive fibers, the resultant PPP fabric can heat under low-power electricity, therefore achieving the effect of "warmth in winter and coolness in summer". The facile fabrication process and elevated performance of PPP fibers present significant advantages for applications in intelligent garments and textiles, as well as comprehensive personal thermal management, which opens a new avenue for future design in these fields.

Peptide-imprinted conductive polymer on continuous monolayer molybdenum disulfide transferred electrodes for electrochemical sensing of Matrix Metalloproteinase-1 in lung cancer culture medium

Matrix metalloproteinase-1 (MMP-1) is associated with lung cancer, and thus the monitoring of the concentration of this protein may be useful for assessing lung cancer progression. In this work, poly(triphenylamine rhodanine-3-acetic acid-co-3,4-ethoxylene dioxy thiophene)s were incorporated onto a continuous monolayer (cML) of molybdenum disulfide (MoS2) by peptide-imprinted electropolymerization, in which peptides of MMP-1 were used as the templates in epitope imprinting. The morphology of the MoS2 thin film was monitored using optical and scanning electron microscopy. The imprinted MoS2 thin film electrode electrochemically responseded (at 1.0 pg/mL MMP-1) 1.4 times than ordinary imprinted electrodes. Moreover, MoS2 cML coating with PIPs can extend the sensing range of the PIP-coated electrodes from 1.0 pg/mL up to 10.0 pg/mL. The MoS2 cML electrode was used to determine that the MMP-1 concentration in the A549 cell line culture medium was 800 ng/mL. Comparison with results from a commercially available ELISA kit indicated an accuracy of 95 ± 5%.

Electropolymerization of D-A type EDOT-based monomers consisting of camphor substituted quinoxaline unit for electrochromism with enhanced performance

In this study, three novel donor-acceptor type monomers based on EDOT (3,4-ethoxylene dioxy thiophene) and quinoxaline derivates were designed and synthesized through Stille coupling reaction, and further polymerized by electrochemical polymerization for electrochromic application. Specially, a quinoxaline-based acceptor with bulky and rigid camphor group was introduced into the polyEDOT backbone, which was demonstrated to be effective for the improvement of electrochromic performance. The corresponding redox active polymers PCQ-EDOT and PCQ-DEDOT performed transparent oxidation states and robust switching stability. Polymer PCQ-EDOT showed superior electrochromic performances with high optical contrast (over 50%) at 647 nm, short switching time (around 0.5 s) and high coloration efficiency (427 cm2 C−1) under a low applied potential of 0.7 V.

Annealing-free perovskite films by EDOT-assisted anti-solvent strategy for flexible indoor and outdoor photovoltaics

To promote the commercialization of perovskite photovoltaics, the development of annealing-free techniques is one of effective strategies to lowering the whole manufacture cost. Unfortunately, annealing-free perovskite films are always accompanying with unsatisfactory crystallization, which would cause defect generation and adverse carrier nonradiative recombination. Herein, we chose triple-cation perovskite and introduce 3,4-ethoxylene dioxy thiophene (EDOT) into anti-slvent to realize annealing-free perovskite films. EDOT-assisted anti-solvent strategy aids to form high quality perovskite films with enlarged crystal grains and reduced defects via the interaction between oxygen and lead. The fabricated flexible and rigid solar cells delivered the power conversion efficiency of 15.58% and 20.12%, respectively, under AM 1.5 G illumination. The flexible and rigid devices also exhibited excellent indoor (@1000 lux) performance of 22.79% and 32.61%, respectively. The developed anti-solvent engineering provides a facial and effective strategy to fabricate low-cost flexible perovskite photovoltaics for indoor and outdoor applications.

Structure design of multi-functional flexible electrocardiogram electrodes based on PEDOT:PSS-coated fabrics

Herein, Polyester woven fabrics as the matrices for the experimental group, while cotton knitted fabrics, cotton woven fabrics, and Polyethylene terephthalate (PET) mesh cloth used as the matrices for the control groups, at 40 °e, using 3,4-ethoxylene dioxy thiophene (EDOT)as the polymer monomer, FeCl3 as the oxidant, and poly(sodium-p-styrenesulfonate) (PSS) as the dopant, are separately coated with PEDOT:PSS polymer to prepare flexible conductive composite fabrics. The influences of the fabric pattern, oxidant concentration, and monomer concentration on the electrical performance of composite fabrics are optimized. The maximal electrical conductivity of PET-based composite fabrics (218 S/m) occurs when monomer concentration is 0.035 mol/L, the molar ratio of oxidant to monomer is 2.5, and the dopant concentration is 2.5 g/L. Moreover, bacteriostasis rate of this composite fabric reaches 71.8%. Furthermore, by electrocardiogram (ECG) simulated human body unit test as well as human body ECG test, the optimal PET-based composite fabric electrode both has a lower impedance which helps form the stabilized ECG signal. The resulting fabric electrodes retain the soft and breathable advantages from fabrics and reduce the discomfort for a long-term use of conventional electrographic gel, thereby validating the empirical evidence for mobile, portable, wearable ECG electrodes.

Shape control of plasmonic gold nanoparticles and its application to vacuum-free bulk hetero-junction solar cells

The plasmonic gold (Au) nanoparticles (NPs) with different shapes were synthesized and characterized. The Au nanospheres (NSPs) had a size of ~ 7 nm, while the Au nanorods (NRs) had a size of ~ 7 nm of width and ~ 23 nm of length, which were measured from electron transmission spectroscopy (TEM) technique. The Au NPs with different shapes were incorporated into the hole transport layer (HTL) of solar cell device, which led to improving light absorption and scattering of photoactive layer, eventually leading to the increase of device performance. The surface morphology of device’s active layer was optimized by deposition of 20 nm thin ZnO buffer layer between the active layer and the electrode. Finally, the device with the structure of glass/indium tin oxide (ITO)/(polyethylene dioxy thiophene doped with polystyrene-sulfonic acid (PEDOT:PSS) + Au NRs)/active layer/zinc oxide (ZnO)/E-GaIn showed a power conversion efficiency (PCE) of ~ 6%.

Study of Dactylopius opuntiae and its electrical properties as thin film for application in organic devices

In this work, we perform morphological and physicochemical studies of Dactylopius opuntiae (cochineal) with electron microscopy and explore their use as a transporting layer for organic electronic devices. The charge transport properties of this pigment were investigated through current-voltage measurements. The current-voltage characteristics have shown that the cochineal can be used as a hole-transporting layer (HTL) with mobility of 5.30 ± 0.03 × 10−4cm2V−1 s−1. Different analyses were realized on this pigment and the results were compared with other HTL organic compounds, as Poly(3,4-ethylene dioxy thiophene): poly(styrene sulfonate) (PEDOT:PSS). The results show that the cochineal pigment does not produce luminescence and has a band gap of 2.6 ± 0.2 eV with optical absorption in the visible range. The roughness of cochineal thin films was measured after filtering the solution with a value of 11.8 ± 0.2 nm. Cochineal and PEDOT:PSS were successfully used as HTL in the fabrication of a [Ir(fliq)2acac] based PHOLED. The results show an increase in the electroluminescent color purity emission due to the filtering action of the natural pigment when compared with the PEDOT:PSS based in this device.

Role of Continuous Spray Pyrolyzed synthesized MoO3 nanorods in PEDOT:PSS matrix by electric field assisted spray deposition for organic photovoltaics

Abstract Organic-inorganic hybrid solution composing of Continuous Spray Pyrolyzed (CoSP) synthesized molybdenum trioxide (MoO3) nanorods in poly(3,4-ethylene dioxy thiophene): poly(styrenesulfonate) (PEDOT:PSS) were developed to form an effective interconnecting layer for use as a hybrid hole transport layer (HTL) in organic solar cells (OSCs). Compared to that of pristine PEDOT:PSS based OSCs, the PEDOT:PSS-MoO3 based OSC demonstrates a noticeable advancement in power conversion efficiency (PCE), current density, and fill factor due to enhanced the wettability and conductivity of the composite HTL for efficient hole injection. The effect of the applied DC voltage (500 V and 1000 V) to the nozzle during the spray deposition of hybrid PEDOT:PSS-MoO3 HTL on efficient operation of the OSCs was systematically investigated. The surface roughness, compact morphology and hence the electrical conductivity of hybrid HTL are significantly influenced by the applied DC voltages during deposition of film. It is attributed to coulombic fission for better atomization of spray and generating ultrafine homogeneous droplets in corona cone, which fabricate a uniform film over a larger area. Moreover, rise in the work function was also noticed possibly due to the nanostructure formation due to MoO3 nanorods. The use of 500 V and 1000 V during fabrication of the PEDOT:PSS-MoO3 HTL resulted in the ambient condition optimized PTB7:PC71BM based OSCs reaching highest PCE of 4.68% and 5.11%, respectively. This is due to superior interface connection between hybrid HTL and photoactive layer leading to improved charge collection efficiency.

Fine-Tuning the Color Hue of π-Conjugated Black-to-Clear Electrochromic Random Copolymers

A family of dioxythiophene (DOT)-based conjugated random copolymers, capable of reversibly switching between a neutral black and an oxidized transmissive state, are reported for electrochromic (EC) applications. By replacing 3,4-ethylenedioxythiophene (EDOT) in the previous generation of a core donor–acceptor–donor (D–A–D) terheterocycle with a methyl-alkylated 3,4-propylenedioxythiophene (ProDOT), we enhance the solubility of precursors and monomers in this new generation of broadly absorbing electrochromic polymers (ECPs). By adjusting the newly designed terheterocycle monomer feed ratio, we obtain three polymers with varying hues of color neutrality (a* and b* < ±10) throughout the entire switching voltage range and with integrated contrasts 45–49% throughout the visible region (380–700 nm). The a* values of the polymers ranged between −8 (green hue) and +5 (red hue), with their b* values ranging between −4 and −7 (blue hue) in their neutral states; additionally, the a* and b* values are all below ±8 i...

Synthesis and multi-electrochromic properties of asymmetric structure polymers based on carbazole-EDOT and 2, 5–dithienylpyrrole derivatives

Two novel asymmetric structure monomers, 3,6-Bis-(2,3-dihydro-thieno[3,4- b][1,4]dioxin-5-yl)-9-[4-(2,5-di-thiophen-2-yl-pyrrol-1-yl)-phenyl]-9H-carbazole (BDTC) and 2,7-Bis-(2,3-dihydro-thieno[3,4-b][1,4]dioxin-5-yl)-9-[4-(2,5-di-thio phen-2-yl-pyrrol-1-yl)-phenyl]-9H-carbazole (BDDC), were designed and synthesized. Both the monomers could be electropolymerized to form the related polymer films. The electrochemical and electrochromic properties of polymer films were different from that of their homopolymers, which could be attributed to the similar copolymerization effect of asymmetric structure. Different linked positions also led to different features, PBDDC film showed more colors (orange, yellow green, green and blue) than that of PBDTC film (yellow, green and purple blue). However, after the introduction of 2, 2′-Bi(3,4-ethoxylene dioxy thiophene)(BIEDOT), the resulting copolymers exhibited similar electrochromic features(red, brown yellow, green and blue) due to the leading effect of EDOT units. Moreover, all the polymer films displayed fast switching time, reasonable optical contrast and good coloration efficiency, which made them have potential application in electrochromic devices.

Improvement of Cycling Performance of Na&lt;sub&gt;2/3&lt;/sub&gt;Co&lt;sub&gt;2/3&lt;/sub&gt;Mn&lt;sub&gt;1/3&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt; Cathode by PEDOT/PSS Surface Coating for Na Ion Batteries

The surface-modified Na2/3Co2/3Mn1/3O2 is coated with a conductive Poly (3,4-Ethylene dioxy thiophene)-poly (styrene sulfonate) (PEDOT/PSS) polymer, and their resulting electrochemical properties were investigated as Na-ion battery cathode. The surface-modified Na2/3Co2/3Mn1/3O2 cathode material exhibits a high discharge capacity and good rate capability due to enhanced electron transport by surface PEDOT/PSS. The presence of PEDOT/PSS surface layer suppresses the growth of a resistive layer, while the dissolution of transition metals of the active cathode materials is inhibited as well. The resulting surface-modified Na2/3Co2/3Mn1/3O2 shows superior cycling performance, which is much stable than the pristine one as being the Na-ion battery cathode.

Critical Role of Interface and Crystallinity on the Performance and Photostability of Perovskite Solar Cell on Nickel Oxide.

Hybrid perovskites are on a trajectory toward realizing the most efficient single-junction, solution-processed photovoltaic devices. However, a critical issue is the limited understanding of the correlation between the degree of crystallinity and the emergent perovskite/hole (or electron) transport layer on device performance and photostability. Here, the controlled growth of hybrid perovskites on nickel oxide (NiO) is shown, resulting in the formation of thin films with enhanced crystallinity with characteristic peak width and splitting reminiscent of the tetragonal phase in single crystals. Photophysical and interface sensitive measurements reveal a reduced trap density at the perovskite/NiO interface in comparison with perovskites grown on poly(3,4-ethylene dioxy thiophene) polystyrene sulfonate. Photovoltaic cells exhibit a high open circuit voltage (1.12 V), indicating a near-ideal energy band alignment. Moreover, photostability of photovoltaic devices up to 10-Suns is observed, which is a direct result of the superior crystallinity of perovskite thin films on NiO. These results elucidate the critical role of the quality of the perovskite/hole transport layer interface in rendering high-performance and photostable optoelectronic devices.

The Influence of CH3NH3I/ Pbi2 Ratio on The Absorption and Electrical Characteristics of Perovskite/Polymer Solar Cell

In this paper, we report a simple solution processed perovskite/polymer solar cell using CH 3 NH 3 PbI 3 as an absorber, PCBM (6,6 phenyl C61-butyric acid methyl ester) as an electron transport layer, and PEDOT:PSS (poly (3,4-ethylene dioxy thiophene):poly(styrene sulfonate)) as a hole transport layer. The absorber solution was prepared by mixing of CH 3 NH 3 I (methyl ammonium iodide) with PbI 2 (lead iodide) in DMF (dimethyl formamide) solvent. The absorber, electron transport, and hole transport layers are deposited by spin coating of the solutions. In order to obtain the optimum optical and electrical characteristics, the mixture of CH 3 NH 3 I and PbI 2 are varied by the molar ratio of 1:1, 1:3, and 3:1, respectively. Because of CH 3 NH 3 PbI 3 layer degrades, the fabricated cells have low performance. However, the cell using a molar ratio of 1:1 CH 3 NH 3 I and PbI 2 gives the best electrical characteristics, results in an open circuit voltage of 0.04 V, a short circuit current density of 0.08 mA/cm 2 , and a power conversion efficiency of 0.002 %.

Self-assembled, highly crystalline porous ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) interlayer for Si/organic hybrid solar cells

Ferroelectric polymers can effectively improve the photovoltaic performance of solar cells, inducing an electric field to promote the dissociation of electron-hole pairs, with the thus generated charges collected from open pores. Since such performance enhancement requires materials with a unique porous crystalline structure, we herein present a novel route to highly crystalline and porous poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) thin films utilizing a modified breath figure method based on spin coating. The key feature of the above method is the addition of small amounts of water to the acetone/P(VDF-TrFE) solution to produce porous ferroelectric thin films which have significantly higher crystallinity values than nanostructures or films prepared by other methods. Furthermore, n-Si / poly(3,4-ethylene dioxy thiophene):poly(styrene sulfonate) hybrid solar cells with porous P(VDF-TrFE) interlayers are demonstrated to exhibit spontaneous polarization sufficient for increasing their open circuit voltages and fill factors. Finite-difference time-domain simulation reveals that the electric field due to the above spontaneous polarization increases the built-in electric field of the Schottky junction between n-Si and poly(3,4-ethylene dioxy thiophene):poly(styrenesulfonate) and reduces the reverse leakage current of the Schottky diode. Thus, the organic ferroelectric thin films with controlled porosity proposed in this study are well suited for a broad range of optoelectronic applications.

Preparation of High Charge Storage Capacity PEDOT/Functionalized MWCNTs Hybrid Nanocomposite for Neural Electrode Applications

This paper presents the experimental methodology of identifying the most suitable Poly 3,4-Ethylene Dioxy Thiophene (PEDOT) based hybrid nanocomposite for neural electrode applications. The key requirement for such electrodes is high charge storage capacity, which enables generation of activation potential without crossing pain threshold. Nanomaterials are key enablers for this high charge storage capacity. Hence hybrid nanocomposites of PEDOT doped with a wide range of nanomaterials such as multi walled carbon nanotubes (MWCNTs), graphene nano platelets (GNPs) graphene oxide (GO), functionalized multi walled carbon nanotubes (FMWCNTs) were prepared and characterized using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The results indicate that the prepared PEDOT/FMWCNTs nanocomposite has highest charge storage capacity and very low interface impedance and thus is the most suitable material for neural electrode applications.

Highly efficient silver nanowire/PEDPT:PSS composite microelectrodes via poly(ethylene glycol) photolithography

Microelectrode technologies have been widely used for a number of applications including optoelectronic and bioelectronics. In this study, we report highly conductive and highly reliable silver nanowire (AgNW)/poly(3,4,-ethylene dioxy thiophene): poly(styrenesulfonate) (PEDOT:PSS) composite microelectrodes fabricated by simple poly(ethylene glycol) photolithography. The electrical properties of AgNW/PEDOT:PSS were examined as functions of the AgNW concentration and layer number, and then compared with those of pure AgNWs. Importantly, the AgNW/PEDOT:PSS composite exhibited a high conductivity with a low sheet resistance of 1.22 Ω/□ as well as an excellent electrical standard deviation of 0.96 Ω/□ in a reliability test. We also demonstrated that these composite micropatterns were completely transferred from the glass to a flexible hydrogel by a direct transfer process. Moreover, the composite microelectrodes exhibited increases in the electrical resistance of only 11 and 24% after over 300 and 500 bending cycles, which were 65 and 90% enhancements compared to the single AgNW microelectrode, respectively. This novel approach could become a low-cost and efficient design for fabricating high-performance microelectrodes.

Preparation of High Charge Storage Capacity PEDOT/Functionalized Mwcnts Hybrid Nanocomposite for Neural Electrode Applications

There is an ever growing demand for the development of high charge storage capacity, biocompatible microelectrodes, which are essential for neural recording and stimulation applications. The challenge here is to increase the charge storage capacity. Higher charge density would enable to pump in higher charge at the electrode/biological element interface even in with a smaller area electrode. However, there is a tradeoff between electrode dimension and interface impedance. A decrease in the electrode dimension results in low capacitance and high impedance which is a major drawback for stimulation because higher signal amplitudes are required for efficiently stimulating the cells. In order to overcome this bottleneck, it is imperative to develop materials having higher active area for the same geometric area. This not only reduces the interface impedance but also increases the specific capacitance. In developing these materials, biocompatibility and long term stability considerations must be taken into consideration. Biocompatible conducting polymers are good candidates for these applications and are being utilized as electrode materials in neuro prosthesis research for the past two decades. Yet the quest of high charge density electrode is still unmet. Among them, PEDOT (Poly Ethylene Dioxy Thiophene) is considered to be one of the promising conducting polymers due to its excellent electronic and ionic conductivity which cater low impedance and high specific capacitance, ease of fabrication by electro chemical polymerization along with excellent biocompatibility and bio stability. But PEDOT suffers from low cycling stability due to its low mechanical strength leading to decrease in pseudo capacitance and conductivity. Choosing the right dopant in PEDOT could potentially overcome these issues. In this work, we have synthesized different hybrid nanocomposites of PEDOT by doping different types carbon based 2D nanomaterials. The syntheses of these nanocomposites were carried out using electro polymerization. The electrode deposition was carried out using Chrono Amperometry, a widely used Potentiostatic technique. The idea behind using these 2D nanomaterials is well explored owing to the inherent advantages of these materials such as extraordinary mechanical strength, electrical conductivity and high chemical stability. Furthermore, the high surface to volume ratio results in higher surface charge, thereby resulting in a higher storage capacity. The focus of this endeavor is to study the charge storage capacity of the synthesized hybrid nanocomposites. The dopants that were used to synthesize the nano composites were Graphene nano platelets, Graphene Oxide, Multiwalled Carbon Nanotubes (MWCNTs) and functionalized MWCNTs. Similar conditions were adapted for electro polymerization. All the experiments were carried out at a scan rate of 100 mV/s using CH Instruments electro chemical setup shown in Fig.1. These include finite pulse potential amplitude of 1V and 120s pulse duration. Amongst all the materials, functionalized MWCNTs demonstrated the highest charge storage capacity as can be inferred by the cyclic voltammograms shown in Fig. 2(a). Functionalized CNTs not only disperse well in the precursor solution but also get embedded in a greater quantity in PEDOT matrix owing to their inherent negative charge. After identifying the right choice of dopant, the next step is to optimize the electro polymerization conditions so as to enhance the charge storage capacity to the best possible value. Cyclic voltammograms (CV) of PEDOT/Functionalized MWCNTs (PEDOT/FCNTs) as shown in Fig. 2(b) reveals that the area of the CV curve is highest for a loading percentage (wt/vol) of 1 mg/ml compared to other loading percentages. We observed that beyond 1 mg/ml, the excess concentration of MWCNTs is impeding the electro polymerization and is not resulting in a good film. The loading was fixed to 1 mg/ml for subsequent experiments. The next parameter that was optimized is the potential of electro polymerization with the duration of electro polymerization being 800s. As can be observed from Fig. 2(c), the suitable potential is 1 V. Voltages beyond this show a reduced charge storage and may be attributed to over oxidation during polymerization. Similarly, Fig. 2(d) reveals that area of the CV curve has attained maximum at pulse duration of 800s by keeping the amplitude as constant at 1V. Fig. 3 depicts the magnitude plot of electrode interface impedance for the PEDOT/CNT-COOH nanocomposite deposited at 1V with pulse duration of 800s in the frequency range of 0.1Hz to 1MHz. Hence, the best possible charge storage capacity and lowest interface impedance is obtained for a ratio of 1mg/ml (wt/vol) with electro polymerization amplitude of 1V and pulse duration 800s. Further morphological studies would be carried out in due of course of time to gain a deeper understanding in the synthesis of hybrid nanocomposite of PEDOT/FCNTs. Figure 1