화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU))
권호 26권 1호
발표분야 포스터-에너지저장·변환
제목 Conjugated polyelectrolyte based on PFB as interlayer for Organic Solar cells.
초록 ​We synthesized a polyelectrolyte with functionalities at the side chain, which we named PFB. Further, the polyelectrolyte was enhanced by using NOBF4 (nitrosonium tetrafluoroborate), a p-type dopant. The energy level of the WFs of ZnO/PFB or NOBF4-PFB was decreased from –4.40 eV (pristine ZnO) to –4.00 and –4.11 eV, respectively. The decreased energy offset of ZnO changes the Schottky contact to ohmic contact. A reduced Schottky barrier induces facile electron collection and transport from the active layer. So, Lowering the work function of the cathode electrode can improve device performance. As an interlayer, this polyelectrolyte can improve the performance of polymer solar cells (PSCs). Power conversion efficiency (PCE) for PSCs based on PFB and NOBF4-PFB are 9.41% and 9.51% higher than those for pristine PSCs using PTB7-Th as a reference (8.7%).
저자 손동환, 김주현, Qurrotun Ayuni Khoirun Nisa, Sabrina Aufar Salma, Rahmatia Fitri Binti Nasrun, 노승건
소속 부경대
키워드 polyelectrolyte; organic solar cells; workfunction
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