Kim, Byungwoo Park, Gi Soon Kim, Joo-Hyun Park, Sang Yeun Kim, Da-Seul Lee, Dong Ki Won, Da Hye Kwon, Soyeong Kim, Dong-Wook Kang, Yoonmook Jeong, Chaehwan Min, Byoung Koun 2024-01-19T17:01:06Z 2024-01-19T17:01:06Z 2021-09-02 2020-08-12 1944-8244 https://pubs.kist.re.kr/handle/201004/118261 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. English American Chemical Society GRAIN-GROWTH SELENIZATION CUINSE2 CHALCOPYRITE DEVICE Boosting Solar Cell Performance via Centrally Localized Ag in Solution-Processed Cu(In,Ga)(S,Se)(2) Thin Film Solar Cells Article 10.1021/acsami.0c08749 1 ACS Applied Materials & Interfaces, v.12, no.32, pp.36082 - 36091 ACS Applied Materials & Interfaces 12 32 36082 36091 scie scopus 000562182900030 2-s2.0-85089707583 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article GRAIN-GROWTH SELENIZATION CUINSE2 CHALCOPYRITE DEVICE CIGSSe solar cell solution process Ag incorporation grain growth