화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2015년 가을 (11/04 ~ 11/06, 제주국제컨벤션센터(ICCJEJU))
권호 19권 2호
발표분야 에너지저장변환_포스터
제목 Synthesis and Photovoltaic Properties of Diketopyrrolopyrrole Based Small Molecules for Solution Processed Organic Solar Cells
초록 Two new small molecules, based on diketopyrrolopyrrole core flanked by cyanothiophene units (CN-DPP-CN, CN-TH-DPP-TH-CN) were synthesized by Suzuki coupling and explored as donors in solution processed organic solar cells (OSCs). The HOMO/LUMO energy levels of CN-DPP-CN, CN-TH-DPP-TH-CN having moderate band gap of 1.83 eV and 1.44 eV were estimated to be −5.63/−3.84 eV, −5.20/−3.75 eV respectively. The device efficiency was found to be 0.013, 0.21% for CN-DPP-CN, CN-TH-DPP-TH-CN respectively for BHJ solar cells. When CN-DPP-CN (0.05%) was added in P3HT:PC60BM device, its PCE was enhanced from 2.08% to 2.45% signifying its ability to be used as a potential n-type additive.
저자 이수형, 박한옥, Sushil Bagde, 이송미
소속 전북대
키워드 Diketopyrrolopyrrole; Organic Solar Cells; Solution process; Small molecules
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