Preparation and characterization of methanofullerenes for polymer-fullerene bulk heterojunction solar cells

被引：17

作者：

Yang, Cheng-Hsien ^{[1
]}

Chang, Jia-Yaw ^{[1
]}

Yeh, Pei-Hong ^{[2
]}

Guo, Tzung-Fang ^{[2
]}

机构：

[1] ITRI S, Nanopowder & Thin Film Technol Ctr, Tainan 709, Taiwan

[2] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Inst Electroopt Sci & Engn, Tainan 701, Taiwan

来源：

CARBON | 2007年 / 45卷 / 15期

关键词：

D O I：

10.1016/j.carbon.2007.09.050

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of alkyl 4-benzoylbutyrate p-tosylhydrazones were synthesized and reacted with C-60 in the presence of sodium methoxide. Interestingly, n-butyl 4-benzoylbutyrate p-tosylhydrazone causes a high yield of the undesired compound-[6,6]-phenyl C-61-butyric acid methyl ester (PCBM). Photovoltaic cells with these derivatives as electron acceptors were fabricated. The surface morphology of poly (3-hexylthiophene)(P3HT)/C-60 derivatives was characterized by atomic force microscopy. The nano-scale phase separation was observed in P3HT/PCBM film through a slow-growth process. This phenomenon is indistinguishable in P3HT/PCBiB ([6,6]-phenyl C61-butyric acid iso-butyl ester) film because of the higher solubility of PCBiB in P3HT. The power conversion efficiency of the device that was made of P3HT/PCBiB blend is 2.8%, which is lower than that of P3HT/PCBM-based device (4.0%). (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：2951 / 2956

页数：6

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