期刊
OPTICS EXPRESS
卷 23, 期 19, 页码 A1288-A1296出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.23.0A1288
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资金
- NSFC [61204050, 11274155]
- National Basic Research 973 Program [2014CB921101, 2013CB932900, 2013CB632101]
- Scientific and Technological Support Programme in Jiangsu Province [BE2014147-2]
- Jiangsu Shuangchuang Team's Program
- French ANR project SOLARIUM [ANR-14-CE05-0005]
- Agence Nationale de la Recherche (ANR) [ANR-14-CE05-0005] Funding Source: Agence Nationale de la Recherche (ANR)
Radial junction (RJ) architecture has proven beneficial in boosting light harvesting and fast carrier separation in thin film solar cells. While a comprehensive understanding of the detailed absorption distribution and light incoupling mechanism within such a 3D RJ configuration remains largely unexplored. Taking hydrogenated amorphous Si (a-Si:H) RJ solar cells as an example, we here address in both experimental and theoretical manners the impacts of tilting and spacing configuration on the light absorption and external quantum efficiency (EQE) responses. A nice agreement between the calculated and experimental EQE responses indicates that the light harvesting realized within RJ thin film solar cells is quite robust against geometric variations and shadowing effects. Following the concepts of optical fiber injection, we have been able to single out the contribution arising solely from a resonant-mode-incoupling into the RJ cavities against a sidewall scattering incidence scenario. These results provide insightful viewpoints as well as practical guides in developing a new generation of high performance RJ thin film solar cells. (C) 2015 Optical Society of America
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