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A simple and robust route toward flexible CIGS photovoltaic devices on polymer substrates: Atomic level microstructural analysis and local opto-electronic investigation

Title
A simple and robust route toward flexible CIGS photovoltaic devices on polymer substrates: Atomic level microstructural analysis and local opto-electronic investigation
Authors
Kim K.Kim J.Gang M.G.Kim S.-H.Song S.Cho Y.Shin D.Eo Y.-J.Jeong I.Ahn S.K.Cho A.Yoon S.Choi P.-P.Jo W.Kim J.H.Gwak J.Yun J.H.
Ewha Authors
조윌렴윤석현
SCOPUS Author ID
조윌렴scopus; 윤석현scopus
Issue Date
2019
Journal Title
Solar Energy Materials and Solar Cells
ISSN
0927-0248JCR Link
Citation
Solar Energy Materials and Solar Cells vol. 195, pp. 280 - 290
Keywords
Atom probe tomographyCIGSFlexiblePolyimideSolar cells
Publisher
Elsevier B.V.
Indexed
SCI; SCIE; SCOPUS scopus
Document Type
Article
Abstract
In this work, copper indium gallium selenide (Cu(In,Ga)Se 2 ; CIGS) absorbers were grown on polyimide (PI)/molybdenum substrates by a three-stage co-evaporation process at various temperatures, film formation was systemically studied using various advanced characterization methods such as transmission electron microscopy, micro-Raman spectroscopy, Kelvin probe force microscopy, and atom probe tomography. The CIGS films on PI were found to exhibit considerable physical and electrical variations with respect to the process temperature of three-stage co-evaporation. In particular, when the process temperature reached 400 °C, the CIGS absorber on PI began to exhibit controlled microstructure and intergrain properties. By adjusting the microstructure and intergrain properties of the absorber films by means of the process temperature of three-stage co-evaporation, flexible CIGS solar cells on PI with an efficiency of 16.7% (with anti-refection coating) were achieved. © 2019
DOI
10.1016/j.solmat.2019.03.008
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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