4.3 Article

Solvent Effects on Solution-Processable Bulk Heterojunction Organic Solar Cells Utilizing 1,4,8,11,15,18,22,25-Octahexylphthalocyanine

Journal

JAPANESE JOURNAL OF APPLIED PHYSICS
Volume 52, Issue 5, Pages -

Publisher

IOP Publishing Ltd
DOI: 10.7567/JJAP.52.05DB02

Keywords

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Funding

  1. Ministry of Education, Culture, Sports, Science and Technology, Japan
  2. Japan Science and Technology Agency (JST-ALCA)
  3. Photonics Advanced Research Center Program in Osaka University
  4. Grants-in-Aid for Scientific Research [25107719] Funding Source: KAKEN

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Bulk heterojunction organic solar cells utilizing soluble phthalocyanine derivative, 1,4,8,11,15,18,22,25-octahexylphthalocyanine (C6PcH(2)), have been fabricated by solution process with various solvents, and their photovoltaic properties have been studied. It is found that the marked differences on the morphologies of the bulk heterojunction film, such as the surface roughness, crystallinity and crystallite size, exist and relate with the boiling points of the solvents. The solvent effects on the photovoltaic properties have been discussed by taking the exciton dissociation efficiency and carrier transport efficiency into consideration. (C) 2013 The Japan Society of Applied Physics

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