https://scholars.lib.ntu.edu.tw/handle/123456789/504250
標題: | Enhancing the photocurrent in poly(3-hexylthiophene)/[6,6]-phenyl C61 butyric acid methyl ester bulk heterojunction solar cells by using poly(3-hexylthiophene) as a buffer layer | 作者: | Liang, C.-W. Su, W.-F. WEI-FANG SU |
公開日期: | 2009 | 出版社: | American Institute of Physics | 卷: | 95 | 期: | 13 | 起(迄)頁: | 133303-1 - 133303-3 | 來源出版物: | Applied Physics Letters | 摘要: | This work presents an approach for improving the unfavorable vertical composition gradients of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61 butyric acid methyl ester (PCBM) in the photoactive layer of bulk heterojunction solar cells. The proposed method involves simply depositing a thin layer of P3HT on top of poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) prior to the P3HT:PCBM blend is spin coated. The results from photoluminescence and photovoltaic measurements indicate that incorporating this P3HT layer significantly enhances the electron blocking ability of PEDOT:PSS, the efficiency of photoinduced electron transfer and the photocurrent of the device, resulting in an improvement of the power conversion efficiency from 3.98% to 5.05%. © 2009 American Institute of Physics. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/504250 | ISSN: | 00036951 | DOI: | 10.1063/1.3242006 | SDG/關鍵字: | Bulk heterojunction solar cells; Butyric acids; Composition gradient; Electron blocking; Ethylenedioxythiophenes; Methyl esters; PEDOT:PSS; Photo-induced electron transfer; Photoactive layers; Photovoltaic measurements; Poly (3-hexylthiophene); Power conversion efficiencies; Thin layers; Acids; Carrier mobility; Conversion efficiency; Deposition; Electron transitions; Esterification; Esters; Fatty acids; Photocurrents; Photovoltaic cells; Semiconductor quantum wells; Solar cells; Styrene; Heterojunctions |
顯示於: | 凝態科學研究中心 |
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