Growth and characterization of Culn1-x GaxSe2 (CIGS) thin films for solar cell structures

Download

index.pdf

Date

2009

Author

Candan, İdris

Metadata

Show full item record

Item Usage Stats

267
views

113
downloads

Direct conversion of solar energy, which is the most powerful and unlimited one among the renewable energy sources; into the electrical energy by the photovoltaic devices, is a promising way of meeting the energy needs of future. Thin film semiconductor materials show great promise for the production of efficient, low-cost solar cell devices. Recently advanced research on thin film photovoltaics in all aspects, has attracted intense attention. Thin film semiconductors for the photovoltaic applications are deposited in large areas by different methods. In this study, deposition and characterization of CuIn1-x GaxSe2 ( CIGS ) semiconductor thin films by thermal evaporation and e-beam evaporation methods were investigated. Material properties and deposition parameters of the thin films are aimed to be optimized for solar cell applications. Structural properties of the deposited CIGS thin films were examined through X-ray diffraction and Energy Dispersive X-ray Analysis. The temperature dependent electrical conductivity, Hall effect and photoconductivity of these samples have been measured between 100 and 400 K. For the optical characterization of CIGS thin films, the transmission measurements have been carried out in the wavelength region of 325-900 nm. The changes in the structural, electrical and optical properties of samples through post-depositional annealing effect were also analyzed.

Subject Keywords

Physics.

URI

http://etd.lib.metu.edu.tr/upload/3/12611305/index.pdf
https://hdl.handle.net/11511/19188

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Effect of support material in nox storage/reduction catalysts Hummatov, Ruslan; Toffoli, Hande; Toffoli, Daniele; Department of Physics (2010) Energy need in transportation and industry is mainly met by fossil fuels. This causes consumption of resources and some environmental problems. Diesel and gasoline engines are developed to consume fuel efficiently in vehicles. Since these engines work in a low fuel to air ratio, it becomes difficult to reduce nitrogen oxide emission. For this reason NO x storage/reduction (NSR) catalysts have been developed. While engines are operating under lean conditions alkaline or alkaline-earth component of NSR cataly...
Growth and characterization of InSe single crystals Deniz, Derya; Akınoğlu, Bülent Gültekin; Department of Physics (2004) In this study, InSe single crystals were grown from the melt using conventional Bridgman-Stockbarger system. The grown crystals were implanted by N-ions to investigate the doping effect. the stoichiometry and the structural features were examined by scanning electron microscope and X-ray diffraction method, respectively. We have observed that the ingot was stoichiometric and the structure was hexagonal. Temperature dependent conductivity and Hall effect measurements were carried out to investigate the elect...
Hydrogen storage capacity of nanosystems: molecular dynamics simulations Koyuncular Onay, Aytun; Erkoç, Şakir; Department of Physics (2008) In recent decades, tremendous efforts have been made to obtain high hydrogen storage capacity in a stable configuration. In the literature there are plenty of experimental works investigating different materials for hydrogen storage and their storage values. In the first part of this thesis the available literature data have been collected and tabulated. In addition to the literature survey the hydrogen storage capacity of carbon nanotubes and carbon nanotubes doped with boron nitride (CBN nanotubes) with d...
Güneş enerjisi destekli zeolit iklimlendirme sistemi Kaftanoğlu, Bilgin; Yamalı, Cemil; Baker, K. Derek; Solmuş, İsmail; Çağlar, Ahmet; Taylan, Onur(2009) Güneş enerjisi ekonomik, temiz ve yenilenebilir bir enerji türüdür. Çevresel faktörler ve artmakta olan enerji talepleri dikkate alındığında bu enerji türünün kullanımı büyük önem kazanmaktadır. Güneş enerjili adsorplanmalı soğutma (GEAS) sistemleri gelecekte yaygın olarak kullanılması düşünülen ve ticarileşmesi için yoğun bir şekilde çaba sarf edilen termal enerji destekli soğutma sistemlerindendir. Bu sistemlerin başarılı bir şekilde çalışması büyük ölçüde adsorban- ads...
Light trapping micro and nanostructures fabricated by top down approaches for solar cell applications Altınoluk, Hayriye Serra; Turan, Raşit; Akın, Tayfun; Department of Micro and Nanotechnology (2016) For an ultimate victory of solar energy over polluting fossil fuels, we need to decrease the cost of electricity generated from the sun. The technology based on photovoltaic (PV) solar cell is offering the most promising alternative in this energy conversion. However, this can be possible only if we can reduce the cost of solar cell fabrication and/or increase the conversion efficiency. In order to increase the performance/cost ratio of solar cells, new approaches reducing optical and electrical losses are ...

Citation Formats

İ. Candan, “Growth and characterization of Culn1-x GaxSe2 (CIGS) thin films for solar cell structures,” M.S. - Master of Science, Middle East Technical University, 2009.