Abstract
Ni-Phthalocyanine thin films were thermally evaporated with different substrate temperatures (300 - 450) K on (silicon wafer, glass) substrates. The chemical bonds of NiPc powder were investigated by FTIR spectrum, which introduce good information for NiPc bonds and their locations. The optical properties have been studied by UV-Visible, and Photoluminescence (PL) Spectra. The NiPc thin films have direct gap for all samples. The values of energy gap which is calculated by PL spectra are lower than those calculated by Tauc equation. It is found there are three activation energies, the mobility and concentration of carriers have been measured and, the NiPc films are p-type. P-NiPc/n-Si HJ solar cell was fabricated at substrates temperatures (300, 400) K. From I-V and C-V characteristic, abrupt junction has been found, photovoltaic characteristics have been observed with Voc of (0.335 - 0.415) V, and Isc of (2.77 - 4.26) μA, and the efficiency of (3.08 - 5.03)% at room temperature and substrate temperature (300, 400 K) and under illumination of 55 mW/cm2 using Halogen lamp. Ideality factors of the junction increase from (0.61 - 0.73) and barrier height increases from 2.53 eV to 3.69 eV while shunt resistance decreases from 3.76 KΩ to 2.59 KΩ and series resistance decreases slightly from 0.24 KΩ to 0.23 KΩ. The fill factor decreases from 0.46 to 0.4 with the increase of substrate temperature.
Highlights
IntroductionMetal phthalocyanine (MPc) has great attractive as catalysts for organic chemical sensor and solar cell application due to simple prepared technique, low cost and stability for chemical and thermal properties [8]
Phthalocyanine happens in three phases (α, β, γ); the molecules are distributed in a parallel to each other leading to forming vertical structure in α phase and β phase, and in α-phase, phthalocyanine contains crystalline grain with 10 nm of diameter, whereas β phase contains bigger crystalline grain and fiber optical structure and this phase is formed at higher temperature
The objectives of this work are the synthesis of thermally evaporated NiPc film using thermal evaporation technique, to study some of the properties at various Ts, to prepare solar cell from n-Nickel Phthalocyanine: p-Silicon HJ and to study their properties
Summary
Metal phthalocyanine (MPc) has great attractive as catalysts for organic chemical sensor and solar cell application due to simple prepared technique, low cost and stability for chemical and thermal properties [8]. The microscopic characteristic of the material can be known by studying optical measurements of film and this gives important information to build electronic devices [12]. The objectives of this work are the synthesis of thermally evaporated NiPc film using thermal evaporation technique, to study some of the properties at various Ts, to prepare solar cell from n-Nickel Phthalocyanine: p-Silicon HJ and to study their properties
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
