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Interface Engineering for High Efficient Non-fullerene Polymer Solar Cells
Shinuk Cho(조신욱),박수정,Febrian Tri Adhi Wibowo,오승환,장성연 한국고분자학회 2021 한국고분자학회 학술대회 연구논문 초록집 Vol.46 No.1
In current, the low-conductivity PEDOT:PSS is mainly utilized in contemporary solar cells. Thus, the contact between ITO and PEDOT:PSS is not ohmic anymore. Despite the high possibility that there are serious interface problems, little attention has been paid to the interface between PEDOT:PSS and ITO. In this work, we have employed a conjugated polyelectrolyte (WPFSCz-) between ITO and low-σ PEDOT:PSS to overcome organic-inorganic interfacial problems. Insertion of the WPFSCz- layer provides substantial advantages in the operation of the polymer solar cells. First, WPFSCz- layer modifies the work-function of the ITO, thereby forming effective cascading energy alignment. Second, the WPFSCz- layer eliminates interfacial trap sites, resulting in an improvement of fill factor. These effects result in a significant increase in the efficiency of non-fullerene solar cells based on PM6 and Y6, from 15.86 to 17.34%.
Identification of electronic structure and structural phases in perovskite crystals
Hye Ri Jung(정혜리),Trang Thi Thu Nguyen,Hye-Jin Jin(진혜진),Bich Phuong Nguyen,Seokhyun Yoon(윤석현),William Jo(조윌렴),Won Seok Woo(우원석),Chang Won Ahn(안창원),Shinuk Cho(조신욱),Ill Won Kim(김일원) 한국신재생에너지학회 2017 한국신재생에너지학회 학술대회논문집 Vol.2017 No.9