https://scholars.lib.ntu.edu.tw/handle/123456789/369642
標題: | Enhanced performance of photodetector and photovoltaic based on carrier reflector and back surface field generated by doped graphene | 作者: | YANG-FANG CHEN Chang C.-W Wang D.-Y Tan W.-C Huang I.-S Chen C.-C Yang Y.-J |
公開日期: | 2012 | 卷: | 101 | 期: | 7 | 來源出版物: | Applied Physics Letters | 摘要: | We report the influence of carrier reflector and back surface field generated by doped graphene on n-ZnO nanoridges/p-silicon photodetectors and silicon solar cells. It is found that the p-type graphene not only acts as an electron blocking layer, but also helps the collection of photogenerated holes. Quite surprisingly, the on/off ratio of the photodetector with the insertion of doped graphene can be increased by up to 40 times. Moreover, we demonstrate that typical silicon solar cells with the doped graphene, the cell efficiency can be enhanced by about 20. Our approach would expand numerous applications for graphene-based optoelectronic devices. © 2012 American Institute of Physics. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84865444782&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/369642 |
ISSN: | 00036951 | DOI: | 10.1063/1.4746763 | SDG/關鍵字: | Back surface fields; Cell efficiency; Electron blocking layer; Nanoridges; On/off ratio; P-type; Photogenerated holes; Photovoltaic; Optoelectronic devices; Photodetectors; Reflection; Silicon solar cells; Zinc oxide; Graphene |
顯示於: | 物理學系 |
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