| 학회 |
한국화학공학회 |
| 학술대회 |
2016년 봄 (04/27 ~ 04/29, 부산 BEXCO) |
| 권호 |
22권 1호, p.811 |
| 발표분야 |
재료 |
| 제목 |
Efficient heavy-metal-free quantum dot sensitized solar cells based on copper-indium-selenide quantum dots |
| 초록 |
Quantum dot solar cells (QDSCs) have attracted a great level of interest as the next-generation solar cells. Unique opto-electrical properties of QDs such as hot electron transfer and multiple exciton generation phenomenon highlights promising future of QDSCs. However, QDs are generally toxic because they usually contains heavy-metals such as Cd and Pb. Here, we present efficient heavy-metal-free QD-sensitized solar cells using copper-indium-selenide (CISe) QDs. Size of QDs are tuned for optimal charge injection into TiO2.1 Surface passivation of QDs-TiO2 electrodes enhance the performance of the solar cells. Both interfacial recombination with the electrolyte and non-radiative recombination at the QDs are suppressed by controlling thickness of overlayers. Conversion efficiency of 8.10% was obtained under AM 1.5 G one sun illumination, which is the highest value for the heavy-metal-free QDSCs.2 |
| 저자 |
양지웅1, 김재엽2, 고민재3, 현택환4
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| 소속 |
1School of Chemical and Biological Engineering, 2Seoul National Univ. / Center for Nanoparticle Research, 3Institute for Basic Science (IBS), 4Photo-Electronic Hybrids Research Center |
| 키워드 |
화공나노소재; 센서 및 소자; Nanofabrication
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| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
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