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Technical Assoc of Photopolymers Japan, Journal of Photopolymer Science and Technology, 3(28), p. 373-376, 2015

DOI: 10.2494/photopolymer.28.373

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Bulk Heterojunction Photovoltaic Cells with Triphenylamine-Based Amorphous Polymer and Non-Halogenated Solvent Processing Provide Reproducible Performance

Journal article published in 2015 by Takeshi Yasuda, Yutarou Kusagaki, Ikumi Kitahara, Liyuan Han ORCID, Tsutomu Ishi-I., I. Tsutomu Ishi
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The performance of bulk heterojunction (BHJ) organic photovoltaics (OPVs) based on an amorphous polymer, poly(3HTBT-TPA), and fabricated using either halogenated or non-halogenated solvents was investigated. All the BHJ OPVs exhibited almost the same power conversion efficiencies of around 2.2%, indicating that their performance is independent of the casting solvent. These experimental results indicate that the use of amorphous π-conjugated polymers in the fabrication of BHJ OPVs offers two advantages over the use of polycrystalline π-conjugated polymers: highly reproducible OPV performance and the possibility of an environmentally friendly process for fabricating OPVs.