화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터)
권호 37권 2호
발표분야 분자전자 부문위원회
제목 Effects of Ionic Liquid Molecules in Hybrid PbS Quantum Dot - Organic Solar Cells
초록 We have first observed the realization of high performance in HyQD-OSCs using the PbS nanoparticles and PCBM with ILMs, which consist of 1-benzyl-3-methylimidazolium cations and chloride anions. The inserted ILMs layer between the PbS and PCBM layer shifts the band edge of the PCBM closer to the vacuum level of the PbS, because of the spontaneously oriented dipole. Therefore, the enhanced device performances, VOC of 0.41 V to 0.49 V, FF of 0.48 to 0.59, and PCE of 1.58% to 2.13%, were achieved compared to the reference device. This outstanding enhancement of QD-SCs with first introduced interface engineering can offer a way to overcome the low VOC to achieve high PCE in the QD-SCs field.
저자 김기환1, 김학범2, 양창진1, 박종남1, 김진영1
소속 1울산과학기술대, 2울사과학기술대
키워드 solar cells; quantum dot; QD; ionic liquid molecules
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