Electrodeposition of single phase CuInSe2 for solar energy harvesting: Role of different acidic additives

Title
Electrodeposition of single phase CuInSe2 for solar energy harvesting: Role of different acidic additives
Author
Tran Dinh Phong
Keywords
Thin film solar cells; Single phase; Electrodeposition; Cu-complexCIGS
Issue Date
2014-01
Publisher
Elsevier B.V
Citation
Journal of Alloys and Compounds, 5 April 2014, 591, 127-131
Abstract
Single phase CuInSe2 (CIS) absorber material is required for producing high quality thin film solar cells, as the presence of impurity Cu2?xSe leads to short circuit of the cells. Traditionally, the deposition of single phase CIS requires the use of a suitable chelating agent to shift the Cu2+/Cu redox couple towards the redox potential of the In3+/In couple, and also an acid to adjust the pH of deposition bath around 2. We propose a novel idea of using suitable acids that could concurrently also serve as the chelating agent. Oxalic acid, acetic acid and hydrochloric acid were investigated on their ability to serve this dual function. We found that oxalic acid is the most promising additive because the CIS film deposited was densest and yielded the highest photocurrent.
URI
https://www.sciencedirect.com/science/article/pii/S092583881303171Xhttp://hdl.handle.net/20.500.11754/47370
ISSN
0925-8388
DOI
10.1016/j.jallcom.2013.12.178
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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