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Title: Influence of support electrolytic in the electrodeposition of CuGaSe thin films

CuGaSe 2 is an important thin film electronic material that possesses several attributes that make it appealing for solar energy conversion. Because of its properties it can be incorporated in to various devices, among the greatest highlights are photovoltaic cells, as well as its potential use as photocathodes for hydrogen production, via the photoelectrolysis. There are several methods of its preparation, most notably electrodeposition that has the potential for large areas and high volumes. Electrodeposition of ternary and/or quaternary semiconductors generally proceeds via the formation of a binary, which is subsequently reacted to form the ternary compound. Several conditions must be controlled to form binary compounds that include the use of complexing agents, buffers, temperature, etc. Here, we discuss the effect of anion composition in the electrolytic bath and the type of lithium salts, in order to manipulate the atomic concentration of CuGaSe 2 during the electrodeposition of thin films, yielding copper-rich, gallium-rich or stoichiometric thin films. Finally, we present the results of a study on the morphology and structure obtained using two types of substrates both before and after performing a heat treatment.
Authors:
 [1] ;  [2] ;  [1] ;  [2]
  1. National Autonomous Univ. of Mexico, Temixco (Mexico)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Report Number(s):
NREL/JA-5900-67685
Journal ID: ISSN 0749-6036
Grant/Contract Number:
AC36-08GO28308; DEAC36-08-GO28308
Type:
Accepted Manuscript
Journal Name:
Superlattices and Microstructures
Additional Journal Information:
Journal Volume: 101; Journal ID: ISSN 0749-6036
Publisher:
Elsevier
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Fuel Cell Technologies Office (EE-3F)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; thin films; electrodeposition; anion composition; electrolyric bath
OSTI Identifier:
1343073
Alternate Identifier(s):
OSTI ID: 1396617