Effects of processing additives on nanoscale phase separation, crystallization and photovoltaic performance of solar cells based on mesogenic phthalocyanine

被引：45

作者：

Dao, Quang-Duy ^{[1
]}

Hori, Tetsuro ^{[1
]}

Fukumura, Kaoru ^{[1
]}

Masuda, Tetsuya ^{[1
]}

Kamikado, Toshiya ^{[1
]}

Fujii, Akihiko ^{[1
]}

Shimizu, Yo ^{[2
]}

Ozaki, Masanori ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Div Elect Elect & Informat Engn, Suita, Osaka 5650871, Japan

[2] Natl Inst Adv Ind Sci & Technol, Kansai Ctr, Res Inst Ubiquitous Energy Devices, Ikeda, Osaka 5638577, Japan

来源：

ORGANIC ELECTRONICS | 2013年 / 14卷 / 10期

基金：

日本科学技术振兴机构;

关键词：

Organic solar cells; Thin films; Phthalocyanine; Bulk heterojunction; CONDUCTING POLYMER; METAL-FREE; EFFICIENCY; MORPHOLOGY; SPECTRUM; NETWORK; FILMS;

D O I：

10.1016/j.orgel.2013.05.041

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study on the effects of processing additives on the nanoscale phase separation, crystallization, and photovoltaic performance of bulk heterojunction (BHJ) thin films made of 1,4,8,11,15,18,22,25-octahexylphthalocyanine (C6PcH(2)) and [6,6]-phenyl-C61 butyric acid methyl ester (PCBM) via spin-casting for photovoltaic applications is reported. By incorporating various solvents as processing additives to a volume of a few percent, the separation of donor and acceptor phases in C6PcH(2): PCBM thin films, which discussed by taking the photoluminescence quenching, Davydov splitting at the Q-band of the absorbance spectra and the surface nanomorphology into consideration, is improved, and the crystallinity of the discotic C6PcH(2) molecules with hexagonal structures is reinforced. Photovoltaic cells with the optimum phase-separated BHJ materials and high crystallinity of the discotic C6PcH(2) molecules are demonstrated to have a power conversion efficiency of 4.2%. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：2628 / 2634

页数：7

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