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Boosting Solar Cell Performance via Centrally Localized Ag in Solution-Processed Cu(In,Ga)(S,Se)(2) Thin Film Solar Cells

Title
Boosting Solar Cell Performance via Centrally Localized Ag in Solution-Processed Cu(In,Ga)(S,Se)(2) Thin Film Solar Cells
Authors
Kim, ByungwooPark, Gi SoonKim, Joo-HyunPark, Sang YeunKim, Da-SeulLee, Dong KiWon, Da HyeKwon, SoyeongKim, Dong-WookKang, YoonmookJeong, ChaehwanMin, Byoung Koun
Ewha Authors
김동욱
SCOPUS Author ID
김동욱scopus
Issue Date
2020
Journal Title
ACS APPLIED MATERIALS & INTERFACES
ISSN
1944-8244JCR Link

1944-8252JCR Link
Citation
ACS APPLIED MATERIALS & INTERFACES vol. 12, no. 32, pp. 36082 - 36091
Keywords
CIGSSesolar cellsolution processAg incorporationgrain growth
Publisher
AMER CHEMICAL SOC
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Fabrication of Cu(In,Ga)(S,Se)(2 )(CIGSSe) absorber films from environmentally friendly solutions under ambient air conditions for use in solar cells has shown promise for the low-cost mass production of CIGSSe solar cells. However, the limited power conversion efficiency (PCE) of these solar cells compared with their vacuum-processed counterparts has been a critical setback to their practical applications. This study aims to fabricate solution-processed CIGSSe solar cells with high PCEs by incorporation of Ag into the precursor layer of the CIGSSe absorber films. The results showed that Ag doping promoted grain growth by accelerating Se uptake, irrespective of the location within the CIGSSe film. Nevertheless, uniform Ag doping formed crevices that lowered the PCE of the cells, while centrally localizing the doped Ag prevented the formation of crevices, resulting in high PCEs up to 15.3%. Our results demonstrate that carefully doping Ag into a selected area of the precursor layer of the CIGSSe films can realize solution-processed chalcopyrite solar cells with high PCE.
DOI
10.1021/acsami.0c08749
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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