Photovoltaic Properties of 1,4,8,11,15,18,22,25-Octaalkylphthalocyanine Doped Polymer Bulk Heterojunction Solar Cells

The effects of doping a liquid crystalline phthalocyanine derivative, 1,4,8,11,15,18,22,25-octaalkylphthalocyanine (C$n$PcH 2 , $n = 6, 7$), into bulk heterojunction organic thin-film solar cells based on poly(3-hexylthiophene) (P3HT) and 1-(3-methoxy-carbonyl)-propyl-1-1-phenyl-(6,6)C61 (PCBM) were...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2012-02, Vol.51 (2), p.02BK15-02BK15-4
Main Authors: Masuda, Tetsuya, Hori, Tetsuro, Fukumura, Kaoru, Miyake, Yasuo, Duy, Dao Quang, Hayashi, Takeshi, Kamikado, Toshiya, Yoshida, Hiroyuki, Fujii, Akihiko, Shimizu, Yo, Ozaki, Masanori
Format: Article
Language:English
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Summary:The effects of doping a liquid crystalline phthalocyanine derivative, 1,4,8,11,15,18,22,25-octaalkylphthalocyanine (C$n$PcH 2 , $n = 6, 7$), into bulk heterojunction organic thin-film solar cells based on poly(3-hexylthiophene) (P3HT) and 1-(3-methoxy-carbonyl)-propyl-1-1-phenyl-(6,6)C61 (PCBM) were studied. The absorbance spectra and external quantum efficiency spectra in the near-infrared region corresponding to the Q-band of C$n$PcH 2 were improved by doping C6PcH 2 or C7PcH 2 . On the basis of the characteristics of C$n$PcH 2 , obtained optical properties, and results of analysis of X-ray diffraction of the composite films of P3HT:C$n$PcH 2 :PCBM, we discussed the photovoltaic properties of solar cells with C$n$PcH 2 by taking the micro phase separation in the active layers into consideration.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.51.02BK15