https://scholars.lib.ntu.edu.tw/handle/123456789/357972
Title: | Employing TiO2 nanorods to improve inverted polymer solar cells | Authors: | Lin, Y.-H. Huang, J.-S. Wang, I.-J. Wu, W.-H. Lin, M.-Y. Huang, G.-D. WEI-FANG SU CHING-FUH LIN |
Issue Date: | 2010 | Start page/Pages: | 1632-1635 | Source: | IEEE Photovoltaic Specialists Conference | Abstract: | In this study, our investigations adapt several approaches to improve the device characteristics of PSCs with inverted structures. First, we employ PV2000 as a photoactive layer, which has a large relative energy difference between the HOMO level of the electron-donating polymer and the LUMO level of the electron acceptor (energy difference ∼1.7 eV), so leading to a large V OC. Second, solution-processed TiO2 nanorods are inserted between the sol-gel derived ZnO layer and photoactive layer to improve the efficiency of inverted devices. The charges in the photoactive layer are collected and transported via the nanorods with relatively higher carrier mobility, so leading to improve the series resistance. Moreover, the photoactive layer is thickened due to the introduction of TiO2 nanorods, indicating improved light harvest and photocurrent. Here, we report that inverted PSCs have high power conversion efficiency of 5.61% with Jsc=11.31 mA cm-2, Voc=0.78V, and FF=63.5% under AM 1.5G (100mW/cm2) irradiation intensity. © 2010 IEEE. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-78650162973&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/357972 |
DOI: | 10.1109/PVSC.2010.5616532 | SDG/Keyword: | Device characteristics; Electron acceptor; Electron-donating; Energy differences; High power conversion; Inverted devices; Inverted polymer solar cells; Inverted structure; Irradiation intensity; Photoactive layers; Relative energies; Series resistances; Solution-processed; TiO; ZnO layers; Conversion efficiency; Nanorods; Photovoltaic effects; Zinc oxide; Carrier mobility |
Appears in Collections: | 電機工程學系 |
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