Crystallite Size Of Zinc Oxide Research Articles

Analysis on the presence of nanosized titanium dioxide (TiO2) and zinc oxide (ZnO) in compact powder

In the present study, unmodified compact powders (JJ01, JJ02, SW01, and SW02) were examined to investigate the presence of potentially harmful nanosized materials, namely titanium dioxide (TiO2) and zinc oxide (ZnO). The X-ray diffraction (XRD) method, field emission scanning electron microscopy (FESEM), and energy dispersive X-ray (EDX) were used to study all selected samples. The XRD pattern confirmed the existence of nanosized ZnO in JJ01 and JJ02 samples, where the sharp peaks matched well with the orientation of the (100), (002), and (101) lattice planes of the cubic phase of hexagonal ZnO. The calculated crystallite size using the Scherrer equation was found to be between ∼ 34 nm and ∼ 80 nm. As for SW01 and SW02 samples, similar XRD patterns were observed for hexagonal ZnO, while other two dominant peaks observed, corresponding to the (022) and (221) crystallographic planes, which indicate the standard peaks of brookite TiO2. For these samples, the calculated crystallite size of ZnO using the Scherrer formula ranges from ∼ 25 nm to ∼ 85 nm, while the crystallite size of TiO2 ranges from ∼ 15 nm to ∼ 90 nm. FESEM results detected a similar surface morphology of flakes-like for all samples, where nanosized TiO2 and ZnO were hardly measured. The EDX then revealed the composition and confirmed the existence of Zn and O in JJ01 and JJ02 samples, and the addition of Ti elements in SW01 and SW02 samples. The obtained results confirm the presence of nanosized ZnO, and both nanosized ZnO and TiO2 in the JJ and SW samples, respectively, with a crystallite size of less than 100 nm that was not properly labelled by the manufacturer.

Synthesis of ZnO nanostructures and its effect on linear-nonlinear optical properties

Zinc oxide (ZnO) nanostructures with nanoparticle morphology have been synthesized at ambient pressure and different temperatures using [OMIM]Br ionic liquid as solvent by ionothermal method. The products were characterized by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Z-scan technique. The average crystallite size of ZnO was between 15-23 nm. The band gaps of products are 3.19, 3.25, and 3.32 at 65, 90, and 120 oC, respectively. The Z-scan technique was proposed to detect the nonlinear optical (NLO) properties at 532 nm wavelength. Temperature effect on third order NLO responses of ZnO nanostructures is studied. The results show that higher annealing temperature in ionic liquid produced ZnO nanoparticles with decreased crystalline and enlarged band gap. Also, this process leads to produce ZnO nanoparticles with increasing NLO responses by altering vacancy distribution.

Influence of the Cadmium Sulfide Chemical Bath Deposition Temperature on Cadmium Sulfide/Zinc Oxide Thin Films

The spin-coating method has been employed for nanostructured crystalline zinc oxide (ZnO) thin film preparation on FTO glass substrates. Cadmium sulfide (CdS) layers were then deposited on the surface via the chemical bath deposition method. To investigate the effect of the formation of the CdS layer on ZnO/FTO, the deposition of these layers was performed at three different temperatures (40, 60, and 80 °C). The synthesized CdS/ZnO composite was found to have homogenously distributed crystalline grains of both ZnO and CdS. The uniform distribution of the grains and the equal molar ratio of the two components resulted in excellent optical and photocatalytic performance. Analysis of CdS/ZnO thin films was performed using XRD analysis, UV-vis spectroscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and linear sweep voltammetry. The best optical, morphological, and electrical properties and the highest photocurrent value of the CdS/ZnO thin films were obtained when the CdS layers were formed at 60 °C. X-ray diffraction characterization revealed that CdS/ZnO thin films crystallized into hexagonal wurtzite ZnO and cubic CdS. The crystallite size of ZnO and CdS/ZnO was ~38 nm and ~19 nm, respectively. The band gap calculated for CdS/ZnO, formed at different temperatures, varies from 2.05 to 2.15 eV.

Synthesis of ZnO nanostructures and its effect on linear-nonlinear optical properties

Zinc oxide (ZnO) nanostructures with nanoparticle morphology have been synthesized at ambient pressure and different temperatures using [OMIM]Br ionic liquid as solvent by ionothermal method. The products were characterized by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and Z-scan technique. The average crystallite size of ZnO was between 15-23 nm. The band gaps of products are 3.19, 3.25, and 3.32 at 65, 90, and 120 oC, respectively. The Z-scan technique was proposed to detect the nonlinear optical (NLO) properties at 532 nm wavelength. Temperature effect on third order NLO responses of ZnO nanostructures is studied. The results show that higher annealing temperature in ionic liquid produced ZnO nanoparticles with decreased crystalline and enlarged band gap. Also, this process leads to produce ZnO nanoparticles with increasing NLO responses by altering vacancy distribution.

Annealing in ionic liquid for synthesis of ZnO nanostructures and its effect on linear-nonlinear optical properties

Zinc oxide (ZnO) nanostructures with nanoparticle morphology have been synthesized at ambient pressure and different temperatures using [OMIM]Br ionic liquid as solvent and template by ionothermal method. The products were characterized by field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), diffuse reflectance spectra (DRS), and Z-scan technique. The average crystallite size of ZnO was between 12 and 14 nm. The band gaps of products are 3.19, 3.25, and 3.32 at 65, 90, and 120 ֯C, respectively. The Z-scan technique was proposed to detect the nonlinear optical (NLO) properties at 532 nm wavelength. Temperature effect on the third order NLO responses of ZnO nanostructures was studied. The results show that higher annealing temperature in the ionic liquid produced ZnO nanoparticles with an increased crystalline structure and enlarged band gap. Also, this process leads to produce ZnO nanoparticles with increasing NLO responses by altering oxygen vacancy distribution. Furthermore, prepared ZnO samples in higher temperatures and longer exposure time in [OMIM]Br ionic liquid are more effective than Cu-doped ZnO in nonlinear coefficient response.

Optical and structural properties of CdS-ZnO thick film

In the present work, we report the fabrication and characterization of undoped ZnO and Cadmium Sulfide (CdS) and Zinc Oxide (ZnO) thick films. The structural properties of ZnO films are characterized by X-ray Diffraction (XRD). It is evident from XRD that, the crystallite size of fabricated ZnO and CdS-ZnO films are 45 nm and 38 nm respectively. Optical properties have been investigated by U-V absorption. It is observed from U-V Spectroscopy that the band gap decreases with CdS doping. We found that all deposited ZnO thin films are to be polycrystalline structures of wurtzite, and the crystallite size of ZnO is in the nanometric range which further decreases with CdS doping.

Simultaneous removal of Cu (II) and Cr (VI) ions from petroleum refinery wastewater using ZnO/Fe3O4 nanocomposite

The presence and removal of heavy metals such as Cu(II) as well as Cr(VI) in petroleum refinery wastewater calls for concerted efforts due to their mobility, toxicity, bioaccumulation, and non-biodegradability in the environment. In this present work, zinc oxide (ZnO), iron oxide (Fe3O4) nanoparticles and ZnO/Fe3O4 nanocomposites were synthesized via simple sol-gel and chemical reduction methods; characterized using different analytical tools and then applied as nanoadsorbent to sequester Cu(II) and Cr(VI) ions from Petroleum Refinery wastewater via batch adsorption process. Cu(II) and Cr(VI) adsorption processes were examined with respect to contact time (kinetic effect), nanoadsorbent dosage, isotherm equilibrium, and thermodynamic parameters. ZnO/Fe3O4 nanocomposites with higher surface area (39.450 m2/g) have a mixture of rod-like and spherical shapes as compared to ZnO and Fe3O4 nanoparticles with spherical shape only and surface areas of 8.62 m2/g and 7.86 m2/g) according to the high-resolution scanning electron microscopy (HRSEM) and Brunauer–Emmett–Teller (BET) analysis. The X-ray diffractometer (XRD) results revealed the formation of hexagonal wurtzite structure of ZnO and the face-centered cubic structure phase of Fe3O4 nanoparticles, after the formation of the ZnO/Fe3O4 nanocomposites the phases of the nanoparticles were not affected but the diffraction peaks shifted to higher 2θ degree. The average crystallite size of ZnO and Fe3O4 nanoparticles and ZnO/Fe3O4 nanocomposites were 20.12, 26.36 and 14.50 nm respectively. The maximum removal efficiency of Cu (II) (92.99%) and Cr (VI) (77.60%) by ZnO/Fe3O4 nanocomposites was higher than 85.83%; 65.19% for Cu (II) and 80.57%; 62.53 for Cr (VI) using ZnO and Fe3O4 nanoadsorbents individually under the following conditions: contact time (15), dosage (0.08 g) and temperature (30 °C). The experimental data for Cu (II) and Cr (VI) ion removal fitted well to the pseudo-second-order kinetic and Langmuir isotherm models. The thermodynamic study suggested that the removal of the two metal ions from petroleum wastewater was endothermic. The reusability study after the fourth adsorption-desorption cycle indicated the stability of ZnO/Fe3O4 nanocomposites with 85.51% and 69.42% removal efficiency of Cu (II) and Cr (VI). The results showed that ZnO/Fe3O4 nanocomposite achieves higher performance than ZnO and Fe3O4 alone in the removal of Cu (II) and Cr (VI) ions from the petroleum refinery wastewater.

Impact of Mo-Doping on the Structural, Optical, and Electrocatalytic Degradation of ZnO Nanoparticles: Novel Approach

Pure and Molybdenum (Mo)-doped zinc oxide (ZnO) nanoparticles were prepared by a cost-effective combustion synthesis route. XRD results revealed the decrement in crystallite size of ZnO with an increase in Mo-doping concentration. Optical bandgap (Eg) values were determined using optical reflectance spectra of these films measured in the range of 190–800 nm. The Eg values decreased with increasing the Mo-doping concentration. The dielectric properties of these samples were studied to determine the dielectric constant values. Raman spectra of these samples were recorded to know the structure. These sample absorption spectra were recorded for electrocatalytic applications. All the prepared samples were subjected to electrocatalytic degradation of Rhodamine B. The 0.01 wt% Mo doped ZnO showed 100% in 7 min electrocatalytic degradation.

Antibacterial study of ZnO and Zn0.5Mg0.5O nanoparticles synthesized by co-precipitation method

In the present study, zinc oxide (ZnO) and magnesium doped zinc oxide (Zn0.5Mg0.5O) nanoparticles were synthesized by simple and cost-effective co-precipitation method. The synthesized materials were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscopy, Field Emission Scanning Electron Microscopy (FESEM) with Energy dispersive X-ray spectrum (EDAX). Finally, the effect of magnesium (Mg) doping on the structural, morphological and anti-bacterial property of ZnO nanoparticles was analyzed. From the XRD results, it was found that there was a formation of hexagonal structured ZnO and the average crystallite size of ZnO and Zn0.5Mg0.5O was calculated to be 71 nm and 36 nm respectively. The FTIR analysis confirmed the existence of possible functional groups in ZnO and Zn0.5Mg0.5O. There was formation of almost spherical shaped particles as evident from FESEM images and agglomeration of particles was observed upon doping Mg into ZnO. The EDAX spectra of the prepared nanoparticles provided the composition of Zn, O in ZnO and Zn, Mg, O in Zn0.5Mg0.5O. No other elements have been found in the EDAX spectra of ZnO and Zn0.5Mg0.5O that confirmed the formation of pure materials. Finally the anti-bacterial study demonstrated that ZnO and Zn0.5Mg0.5O was effective in inhibiting E. coli bacteria.

Morphological, structural and antibacterial behavior of eco-friendly of ZnO/TiO2 nanocomposite synthesized via Hibiscus rosa-sinensis extract

An eco-friendly preparation technique was used to synthesize zinc oxide (ZnO) from Hibiscus rosa-sinensis extract. In addition, titanium dioxide (TiO2) was combined with ZnO in a nanocomposite. The structural investigation was done by x-ray diffraction (XRD) and the hexagonal symmetry of ZnO was detected. The calculated crystallite size of ZnO increased from 31.3 to 34.4 nm. Furthermore, functional groups of organic residues were detected by chemical analysis of Fourier transform infrared spectroscopy (FTIR). The rod grains of ZnO and TiO2 were detected by scanning electron microscope (SEM). Further, ZnO grains increased in length from 0.87 to 4.5 μm. Besides, the width increased from 0.27 to 2 μm (from ZnO to ZnO/TiO2 respectively). Furthermore, TiO2 grains decreased in length from 536 to 337 nm, while the width decreased from 136 to 122 nm. A transmission electron microscope (TEM) was used to investigate the particles of ZnO/TiO2 composite. ZnO particles were detected as ellipsoidal with length and width around 123 and 91 respectively. Besides the sphere particles of TiO2 with a diameter around 25 nm. The eco-friendly composites without harmful chemicals could be suggested for biological applications. The inhibition zone values of E. coli and S. aureus microorganisms was 61.4 ± 3.6 and 39.6 ± 4.4 and has been increased by by doping by TiO2 to 82.3 ± 6.7 and 54.3 ± 2.8.

Fabrication and Characterisation of ZnO Thin Film by Sol–Gel Technique

Abstract We investigated the structural and optical properties of zinc oxide (ZnO) thin film as the n-type semiconductor. In this work, the sol–gel method used to fabricate ZnO thin film on glass substrate with 0.5 mol/l of zinc acetate dehydrates. The crystals quality of the thin film analyzed by X-ray diffraction and the optical transmittance was carried out by an ultraviolet-visible spectrophotometer. The DRX analyses indicated that ZnO film have polycrystalline nature and hexagonal wurtzite structure with (002) preferential orientation and the measured average crystallite size of ZnO of 207.9 nm. The thin film exhibit average optical transparency about 90 %, in the visible region, found that optical band gap energy was 3.282 eV, the Urbach energy also was calculated from optical transmittance to optimal value is 196.7 meV.

Impact of Hibiscus extract on the structural and activity of sonochemically fabricated ZnO nanoparticles

In the present work, a green chemistry route for synthesizing zinc oxide (ZnO) nanostructures using Hibiscus extract as a stabilizing and a reducing agent under ultrasonic energy. The ZnO nanostructures obtained without (ZnO) and with Hibiscus extract (ZnO-H) were characterized to explore the effect of the plant extract on ZnO structure, morphology, and photocatalytic activity. The X-ray diffraction (XRD) data showed a reduction in ZnO crystallite size from 40 to 31 upon treatment with the Hibiscus extract. In addition, thinner ZnO nanorods were formed due to the use of the extract, as perceived from the scanning electron microscopic (SEM) analysis. The N2 physisorption data revealed that surface area and porosity increased with Hibiscus extract treatment, where the SBET increased from 4.0–10.0 m2. g−1, while the pore size and pore volume increased from 0.021 to 0.06 cm3. g−1 and 12.5–18.2 nm, respectively. The X-ray photoelectron spectroscopy (XPS) confirmed the formation of ZnO with minor shift in the binding energies as an effect of using the extract. As a consequence of band gap narrowing, surface area and porosity increase, the ZnO-H nanostructures exhibited better photocatalytic degradation performance for the methylene blue (MB) dye. The high efficiency for MB degradation was reflected by the higher photodegradation percentage and greater pseudo-first-order kinetics rate constant. The radical scavenger study revealed that superoxide radicals played a major role in the photodegradation of MB, especially over ZnO-H. The inexpensive, simple, eco-friendly approach of the previously described protocol for “one-pot” synthesis and alteration of ZnO characteristics could be expanded to fabricate other kinds of nanoparticles and to extend their utility in different areas of nanotechnology.

Ultrasound assisted preparation and characterization of Ag supported on ZnO nanoparticles for visible light degradation of methylene blue dye

The present work reports sonochemical preparation of zinc oxide (ZnO) and silver decorated ZnO (9wt%) with the use of zinc acetate, silver nitrate and sodium carbonate as precursors in 60min duration. The resulted ZnO and silver decorated ZnO nanoparticles were characterized with SEM, FE-SEM, FTIR, XRD and UV–Vis techniques. XRD analysis reveals hexagonal quartzite crystalline phase of ZnO with highest purity. The doping of silver differs the ionic radii of the elements and that produces the strain in Ag-ZnO nanocomposites. The average crystallite size of ZnO and Ag-ZnO estimated to be 17.53 and 18.73nm, respectively with the use of XRD analysis. The lattice parameters, crystallite size and unit cell volume was observed to be increased with the loading of Ag on ZnO nanoparticles during its preparation with the aid of ultrasonic irradiations. The observed lesser size of nanoparticles and nanocomposites is due to the use of ultrasonic irradiations. Photocatalytic properties of ZnO and Ag-ZnO (doped) nanocomposite was examined for the degradation of methylene blue (MB) dye in aqueous solution under solar light irradiations. Influence of the initial dye concentration, catalyst loading, pH, and temperature on the degradation of MB dye was investigated and optimized conditions were obtained. Furthermore, a relative study of photocatalytic properties of ZnO and Silver doped ZnO nanocomposites prepared by conventional and sonication method was accomplished and the results were discussed. A maximum degradation of MB dyes was achieved (~96.2%) under optimized conditions for Ag doped ZnO nanocomposite prepared by ultrasound assisted method.

Realization of Spatially Addressable Library by a Novel Combinatorial Approach on Atomic Layer Deposition: A Case Study of Zinc Oxide.

Though the synthesis of libraries of multicomponent metal oxide systems is prevalent using the combinatorial approach, the combinatorial approach has been rarely realized in studying simple metal oxides, especially applied to the atomic layer deposition (ALD) technique. In this literature, a novel combinatorial approach technique is utilized within an ALD grown simple metal oxide to synthesize a "spatially addressable combinatorial library". The two key factors in gradients were defined during the ALD process: (1) the process temperature and (2) a nonuniform flow of pulsed gases inside a cross-flow reactor. To validate the feasibility of our novel combinatorial approach, a case study of zinc oxide (ZnO), a simple metal oxide whose properties are well-known, is performed. Because of the induced gradient, the ZnO (002) crystallite size was found to gradually vary across a 100 mm wafer (∼10-20 nm) with a corresponding increase in the normalized Raman E2/A1 peak intensity ratio. The findings agree well with the visible grain size observed from scanning electron microscope. The novel combinatorial approach provides a means of systematical interpretation of the combined effect of the two gradients, especially in the analysis of the microstructure of ZnO crystals. Moreover, the combinatorial library reveals that the process temperature, rather than the crystal size, plays the most significant role in determining the electrical conductivity of ZnO.

The Effect of pH on Zinc Oxide Nanoparticles Characteristics Synthesized from Banana Peel Extract

In this study, Zinc Oxide (ZnO) Nanoparticles (NPs) were synthesized from banana peels (Jackfruit banana) extract (BPE) at different pH condition. The samples were then characterized to identify the optimum pH condition for producing ZnO NPs and at the same time determine the crystallite and particles size of ZnO. This paper covered a section of green chemistry since green application has become an attention nowadays. Slo-gel method is the method used to synthesize the ZnO NPS because the advantages in terms of eco-friendly, less time consumption, cost effective and easy to apply. BPE is one of raw material that has the ability to act as stabilizer and reducing agent. The samples were characterized using Fourier Transform Infrared Red (FTIR) Spectroscopy, UV-visible spectrometer (UV-Vis), X-ray diffraction (XRD) and Brunaner-Emmett-Teller (BET). It was found that the presence of ZnO were recorded from FTIR spectra at wavenumber 350-390 cm-1 for all samples which indicating the presence of ZnO bond. The UV-Vis spectrometer was recorded to observe the absorption peak, the highest absorption peak at 367 nm and the band gap was 3.38 Ev at pH 12. XRD analysis showed the ZnO nanoparticles formed to have hexagonal wurtzite structure and the crystallite size between 16 to 23 nm and the smallest crystallite size was smallest at pH 12. BET analysis showed that the surface area of ZnO NPs between 15 to 53 m2/g and the average particles size of ZnO NPs between 20 to 66 nm. As a conclusion, ZnO NPs can be produced from BPE at optimum pH of 12.

Low-temperature solution-processed zinc oxide field effect transistor by blending zinc hydroxide and zinc oxide nanoparticle in aqueous solutions

We present a novel methods of fabricating low-temperature (180 °C), solution-processed zinc oxide (ZnO) transistors using a ZnO precursor that is blended with zinc hydroxide [Zn(OH)2] and zinc oxide hydrate (ZnO ∙ H2O) in an ammonium solution. By using the proposed method, we successfully improved the electrical performance of the transistor in terms of the mobility (μ), on/off current ratio (Ion/Ioff), sub-threshold swing (SS), and operational stability. Our new approach to forming a ZnO film was systematically compared with previously proposed methods. An atomic forced microscopic (AFM) image and an X-ray photoelectron spectroscopy (XPS) analysis showed that our method increases the ZnO crystallite size with less OH− impurities. Thus, we attribute the improved electrical performance to the better ZnO film formation using the blending methods.

The Influence of pH Values on the Crystallite Size of ZnO by Solvothermal Synthesis

Zinc oxide (ZnO) is a semiconductor material that widely used in various applications due to its unique properties. Synthesis of ZnO by solvothermal method has been conducted with controlled pH values. The variations of pH value were 10, 11 and 12 by adjusting NaOH content. Crystall structure of the synthesis products after heat treatment at 110oC and 600oC has characterised by X-ray Diffratometer (XRD). Crystallite size of ZnO was measured by Scherrer equation. Crystall phase of ZnO has been observed on all pH value variations at 110 oC with 22,98-37,06 nm of crystallite size, whereas ZnO has been observed on all pH value variations at 600 oC with 41,39-71,77 nm of crystallite size.Keywords: ZnO, pH values, crystallite size, solvothermal

Structural, dielectric and optical investigation of chemically synthesized Ag-doped ZnO nanoparticles composites

The sol–gel technique was used in the chemical synthesis and characterizations based on structural, morphological, optical and electrical studies of pure and Ag-doped zinc oxide (ZnO) nanoparticles. X-ray diffraction, scanning electron microscopy, energy Dispersive X-ray spectrometry, transmission electron microscope, ultraviolet spectroscopy, photoluminescence and FT-IR analysis were used to perform the characterization of the morphological analysis, optical studies, phase purity and crystalline size. The Powder X-ray diffraction results proved polycrystalline nature of ZnO with a hexagonal wurtzite structure. Debye-Scherrer’s formula was used to evaluate the average crystallite size of pure and Ag-doped ZnO. Their values have been determined to be 14 and 18 nm respectively. To examine the various functional groups FTIR was utilized. The unique aggregation of the particles was stated by the scanning electron microscopy investigation and transmission electron microscope analysis was used to substantiate the nanosphere formation. Here, the estimated optical band gap value for pure and Ag-doped ZnO nanoparticles was 3.22 and 3.17 eV, respectively. UV–visible spectroscopy was used to perform this process. Photoluminescence studies have proved the Ag-doped ZnO sample of the blue shift emission bands. At different frequencies and temperatures, under specific conditions, the dielectric properties like dielectric constant, dielectric loss and AC conductivity of Ag-doped ZnO nanoparticles were analyzed.

Analysis of Structural and Electrical Properties of Solution-Processed Zinc Oxide Films for Thin-Film Transistor Application

We investigated the electrical properties of solution-processed zinc oxide (ZnO) thin-film transistors (TFTs) with varying the size of ZnO crystallites in the film. The TFTs having the bead-shaped ZnO crystallites with the average diameter of 2 μm apparently operated in depletion mode, whereas the devices exhibited an accumulation operation when the crystallite size of ZnO reduced to sub-micron range. Considering the difference between bulk and channel electrical conductivities in solution-processed ZnO TFTs, these results are explained with the interplay between the crystallite size of ZnO and the electrical conduction in the TFT.

Structural and optical properties of poly-vinylpyrrolidone modified ZnO nanorods synthesized through simple hydrothermal process

The synthesis of nanocrystalline zinc oxide (ZnO) in the presence of poly-vinylpyrrolidone (PVP) as capping agent through hydrothermal process, and their structural and optical properties were reported. PVP modified ZnO nanorods grown hydrothermally involve a heterogeneous chemical reaction in the presence of water as a solvent medium and reaction temperature of 100°C for 7h in a hot air oven and calcined in air at 500°C for 3h. Crystal structure, phase purity and average crystallite size of ZnO were studied by powder X-ray diffraction (PXRD). The strain associated with the as-prepared samples due to lattice deformation was estimated by Williamson–Hall (W–H) analysis. Structural morphology was investigated using scanning electron microscopy (SEM), which showed the formation of nanorods with PVP capping. The growth mechanism of ZnO nanorods and its capping by poly-vinylpyrrolidone are briefly discussed through FT-IR adsorption spectra. The optical behavior of the samples was analyzed through photoluminescence (PL) spectroscopy with an emission spectra in visible region ∼418nm indicate the applicability of using it as a transport material in solar cells.