NDLI: Investigation of the effect of I-ZnO window layer on the device performance of the Cd-free CIGS based solar cells

Content Provider	IEEE Xplore Digital Library
Author	Hasoon, Falah S. Al-Thani, Hamda A. Li, Xiaonan Kanevce, Ana Perkins, Craig Asher, Sally
Copyright Year	2008
Description	Author affiliation: National Energy & Water Research Center, Abu Dhabi Water & Electricity Authority, P.O.Box 54111, UAE (Al-Thani, Hamda A.) \|\| National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401, USA (Hasoon, Falah S.; Li, Xiaonan; Kanevce, Ana; Perkins, Craig; Asher, Sally)
Abstract	Cu(In,Ga)Se (CIGS) thin films were deposited on Molybdenum coated soda lime glass (SLG/Mo) substrates, using physical vapor deposition (PVD) 3-stage process. The CIGS films were treated by ammonium hydroxide solution before depositing the I-ZnO buffer layer. The I-ZnO layer was deposited using metallorganic chemical vapor deposition (MOCVD) at different substrate temperatures of 200°C, 250°C, and 300°C. The thickness of this buffer layer was varied according to the location of the substrates with respect to the gas flow direction. The CIGS devices were completed by depositing the Al-ZnO window layer by rf magnetron sputtering and applying the Ni/Al front contact grids. The thickness of the I-ZnO buffer layer was measured using a Dek-tak profilometer on soda lime glass substrates which were used as reference samples during the deposition process of I-ZnO buffer layer on CIGS films. Surface depth profiling survey for the elements and their chemical states, as well as their relative concentration was analyzed by X-Ray Photoelectron Spectroscopy (XPS) for as deposited and ammonium hydroxide treated CIGS films. In addition, the performance of the completed CIGS devices was evaluated under standard conditions of 1000 $W/m^{2}$ and 25°C.
Starting Page	1
Ending Page	5
File Size	1998919
Page Count	5
File Format	PDF
ISBN	9781424416400
ISSN	01608371
DOI	10.1109/PVSC.2008.4922883
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Photovoltaic cells Buffer layers Windows Sputtering Glass Chemical vapor deposition Chemical elements Chemical analysis Atherosclerosis MOCVD
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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