NDLI: X-ray absorption fine structure study of aging behavior of oxidized copper in CdTe films

Content Provider	IEEE Xplore Digital Library
Author	Xiangxin Liu Compaan, A.D. Terry, J.
Copyright Year	2005
Description	Author affiliation: Dept. of Phys. & Astron., Toledo Univ., USA (Xiangxin Liu; Compaan, A.D.)
Abstract	We have used the MR-CAT beamline of the Advanced Photon Source at Argonne National Laboratory to study the fine structure in the Cu K-edge X-ray absorption in 2 /spl mu/m thick polycrystalline films of CdTe on fused silica. 4 nm of evaporated Cu is diffused either with or without prior vapor CdCl/sub 2/ treatments in dry air. The phase-uncorrected radial distribution function inferred from the absorption fine structure indicates predominantly Cu/sub 2/Te when Cu is diffused into the as-deposited CdTe film but indicates a Cu/sub 2/O environment when Cu is diffused after the vapor CdCl/sub 2/ treatment. We believe most of the diffused Cu decorates grain boundaries as oxides, consistent with the low doping densities typically observed in CdTe solar cells. This Cu/sub 2/O likely plays a role in grain-boundary passivation. We also found that the chemical environment around Cu atoms in both CdTe and real cells can change with light soaking. This instability of Cu/sub 2/O in sputtered CdTe could contribute to cell degradation.
Sponsorship	IEEE Electron Devices Soc. (USA)
Starting Page	267
Ending Page	270
File Size	895531
Page Count	4
File Format	PDF
ISBN	0780387074
ISSN	01608371
DOI	10.1109/PVSC.2005.1488120
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-01-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electromagnetic wave absorption Aging Copper Laboratories Silicon compounds Distribution functions Tellurium Grain boundaries Doping Photovoltaic cells
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in