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Awet Mana Amare,황인찬,정인영,박주형,안진기,송수민,어영주,조아라,조준식,안승규,유진수,안세진,곽지혜,박현우,윤재호,김기환,신동협 한국태양광발전학회 2023 Current Photovoltaic Research Vol.11 No.1
In this work, we investigated the thickness of Ag precursor layer to improve the performance of flexible CIGSe solar cells grown on stainless steel (STS) substrates through three-stage co-evaporation with Ga grading followed by alkali treatments. The small amount of incorporated Ag in CIGSe films showed enhancement in the grain size and device efficiency. With an optimal 6 nm-thick Ag layer, the best cell on the STS substrate yielded more than 16%, which is comparable to the soda-lime glass (SLG) substrate. Thus, the addition of controlled Ag combined with alkali post-deposition treatment (PDT) led to increased open-circuit voltage (VOC), accompanied by the increased built-in potential as confirmed by capacitance-voltage (C-V) measurements. It is related to a reduction of charge recombination at the depletion region. The results suggest that Ag alloying and alkali PDT are essential for producing highly efficient flexible CIGSe solar cells.
Effects of Ag Additive on Device Performance of Flexible CIGSe Thin-Film Solar Cells
Awet Mana Amare(아웻 마나 아마래),Inyoung Jeong(정인영),Soomin Song(송수민),Young-Joo Eo(어영주),Ara Cho(조아라),Jun-Sik Cho(조준식),Joo Hyung Park(박주형),Seung Kyu Ahn(안승규),Jinsu Yoo(유진수),SeJin Ahn(안세진),Jihye Gwak(곽지혜),Jae 한국신재생에너지학회 2022 한국신재생에너지학회 학술대회논문집 Vol.2022 No.4
Development of High-Efficiency Flexible CZTSe Solar Cell Prepared by Na and K Alkali Doping
Muhammad Rehan(무함마드 레한),Ara Cho(조아라),Awet Mana Amare(아웻 마나 아마래),Kihwan Kim(김기환),Inyoung Jeong(정인영),Jun-Sik Cho(조준식),Joo Hyung Park(박주형),Jae Ho Yun(윤재호),Jihye Gwak(곽지혜),Donghyeop Shin(신동협) 한국신재생에너지학회 2022 한국신재생에너지학회 학술대회논문집 Vol.2022 No.4