| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 봄 (04/10 ~ 04/11, 대전 컨벤션센터) |
| 권호 |
39권 1호 |
| 발표분야 |
분자전자 부문위원회 |
| 제목 |
Inverted Colloidal Quantum Dot Solar Cells Employing Optical Cavity Absorption Enhancement |
| 초록 |
We investigate the effect of an optical cavity on the performance of colloidal quantum dot solar cells. To achieve these enhancements, it was necessary to engineer the device to position the field-intensity peaks to reside within the thin CQD absorber layer. To this end, we developed a transparent, solution-processed, low-temperature-fabricated zinc oxide electrode/spacer materials process that allowed us to program the dimensions of the optical cavity in a novel inverted CQD PV architecture. We enhanced total light absorption, suitably averaged across the solar spectrum, by optimizing the optical field distribution within the active layer, leading to statistically-significant improvements in photovoltaic device performance. We report comprehensive characterization and optical modeling of the resulting devices to elucidate the role of the optical cavity and device geometry on photovoltaic performance. |
| 저자 |
김기환1, 김학범2, bright Walker2, 김진영3, 박종남2, Edward H. Sargent4, 김진영2
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| 소속 |
1울산과학기술대, 2UNIST, 3KIST, 4Univ. of Toronto |
| 키워드 |
Lead Sulfide; Zinc Oxide; Depleted Heterojunction; NanoparticlesInverted; Quantum Dot Solar Cells; Hybrid Solar Cells
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| E-Mail |
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