https://scholars.lib.ntu.edu.tw/handle/123456789/357974
Title: | Effect of nanowire lengths on polymer-Si nanowire hybrid solar cells | Authors: | Lin, D.-H. Shiu, S.-C. Huang, J.-S. Lin, C.-F. CHING-FUH LIN |
Issue Date: | 2010 | Start page/Pages: | 949-950 | Source: | IEEE Photovoltaic Specialists Conference | Abstract: | We demonstrate Al/Si NWs/poly(3,4-ethylenedioxy thiophene)/ poly(styrenesulfonate)(PEDOT:PSS)/ITO hybrid solar cells. The lengths of these n-type Si NWs could be controlled by the etching time from 15min to 40min in an aqueous solution of AgNO3 and HF acid for this demonstration. The conductive polymer, PEDOT:PSS, was spin-coated on ITO glass. Before the PEDOT:PSS thin film dried, the top portion of the Si NWs were immersed in the wet PEDOT:PSS thin film. Current versus voltage measurements which were performed under broad band light irradiation show that Si NWs/PEDOT:PSS heterojunctions have remarkable photosensitive behavior. Moreover, when the nanowire etching time is raised, the probability of collecting photogenerated carriers at the interface after separation of hole-electron pair increases because of increasing interface area in the radial directions between the PEDOT:PSS and the silicon nanowire array, which palys an important role in collecting photogenerated electrons and acts as a conducting path to the aluminum electrode, resulting in raising fill factors and power conversion efficiencies. © 2010 IEEE. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-78650162553&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/357974 |
DOI: | 10.1109/PVSC.2010.5614613 | SDG/Keyword: | Aluminum electrodes; Aqueous solutions; Broad bands; Conducting paths; Conductive Polymer; Etching time; Fill factor; HF acid; Hole electron pairs; Hybrid solar cells; Light irradiations; PEDOT:PSS; Photogenerated carriers; Photogenerated electrons; Poly(styrene sulfonate); Power conversion efficiencies; Radial direction; Si nanowire; Silicon nanowire arrays; Conversion efficiency; Etching; Heterojunctions; Hydrofluoric acid; ITO glass; Nanowires; Photovoltaic effects; Solar cells; Spin glass; Thin films; Thiophene; Silicon |
Appears in Collections: | 電機工程學系 |
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