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학술발표회초록보기

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  • 09월 05일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제120회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Control of the Donor/Acceptor Interfacial Morphology via Quadrupolar Electrostatic Interactions for All-Polymer Solar Cells

등록일
2017년 8월 23일 19시 59분 50초
접수번호
1305
발표코드
POLY.O-8 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 16시 : 15분
발표형식
구두발표
발표분야
Polymer Chemistry - Oral Presentation for Young Scholars in Polymer Chemistry
저자 및
공동저자
HONG IL KIM, Minjun Kim1, Cheol Woong Park, Taiho Park*
Department of Chemical Engineering, Pohang University of Science and Technology, Korea
1Chemical engineering, Pohang University of Science and Technology, Korea
We report a pentafluorobenzene-based additive (FPE) to control the donor/acceptor (D/A) interfacial morphology via quadrupolar electrostatic interactions between donor and acceptor polymers in all-polymer solar cells (all-PSCs). The morphology changes are investigated using a combination of atomic force microscopy (AFM), grazing incidence wide-angle X-ray scattering (GIWAXS), and near-edge X-ray absorption fine-structure spectroscopy (NEXAFS). Unlike a conventional solvent additive, such as 1,8-diiodooctane (DIO), a bicontinuous interpenetrating morphology without large-scale phase separation and an enhanced π–π stacking with face-on orientation are found in the FPE processed blended films. These morphology changes improve the charge carrier extraction and charge transport between D/A interfaces to achieve an increase in the photovoltaic performance of all-PSCs.

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