Highly efficient bulk heterojunction photovoltaic cells based on C 70 and tetraphenyldibenzoperiflanthene

Yan Qiong Zheng; William J. Potscavage; Takeshi Komino; Masaya Hirade; Junji Adachi; Chihaya Adachi

doi:10.1063/1.4801647

Highly efficient bulk heterojunction photovoltaic cells based on C ₇₀ and tetraphenyldibenzoperiflanthene

Yan Qiong Zheng, William J. Potscavage, Takeshi Komino, Masaya Hirade, Junji Adachi, Chihaya Adachi

Applied Chemistry

Research output: Contribution to journal › Article › peer-review

69 Citations (Scopus)

Abstract

Highly efficient photovoltaic cells based on a bulk heterojunction configuration composed of C₇₀ with various donor materials at 5 wt.% donor concentration were fabricated. The tetraphenyldibenzoperiflanthene (DBP) donor achieved the highest power conversion efficiency (η_PCE) of 6.4% for the optimized cell. The improved performance with DBP arises from a combination of a higher absorption coefficient than 1,1-bis-(4-bis(4-methyl- phenyl)-amino-phenyl)-cyclohexane and a symmetrical molecular structure. The high η_PCE with only 5 wt. donor is attributed to a sufficient donor concentration for enhanced Frenkel exciton dissociation in C₇₀, while efficiency and electron mobility decrease at higher donor concentrations.

Original language	English
Article number	143304
Journal	Applied Physics Letters
Volume	102
Issue number	14
DOIs	https://doi.org/10.1063/1.4801647
Publication status	Published - Apr 8 2013

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1063/1.4801647

Cite this

@article{39e440bb136b4f84baf30ab63fe2e129,

title = "Highly efficient bulk heterojunction photovoltaic cells based on C 70 and tetraphenyldibenzoperiflanthene",

abstract = "Highly efficient photovoltaic cells based on a bulk heterojunction configuration composed of C70 with various donor materials at 5 wt.% donor concentration were fabricated. The tetraphenyldibenzoperiflanthene (DBP) donor achieved the highest power conversion efficiency (ηPCE) of 6.4% for the optimized cell. The improved performance with DBP arises from a combination of a higher absorption coefficient than 1,1-bis-(4-bis(4-methyl- phenyl)-amino-phenyl)-cyclohexane and a symmetrical molecular structure. The high ηPCE with only 5 wt. donor is attributed to a sufficient donor concentration for enhanced Frenkel exciton dissociation in C70, while efficiency and electron mobility decrease at higher donor concentrations.",

author = "Zheng, {Yan Qiong} and Potscavage, {William J.} and Takeshi Komino and Masaya Hirade and Junji Adachi and Chihaya Adachi",

note = "Funding Information: The authors greatly appreciate the financial support of the New Energy and Industrial Technology Development Organization (NEDO) and the BEANS Lab, Japan. This work was supported in part by the Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST) and by the International Institute for Carbon Neutral Energy Research (WPI-I2CNER), sponsored by MEXT.",

year = "2013",

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doi = "10.1063/1.4801647",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

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AU - Zheng, Yan Qiong

AU - Potscavage, William J.

AU - Komino, Takeshi

AU - Hirade, Masaya

AU - Adachi, Junji

AU - Adachi, Chihaya

N1 - Funding Information: The authors greatly appreciate the financial support of the New Energy and Industrial Technology Development Organization (NEDO) and the BEANS Lab, Japan. This work was supported in part by the Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST) and by the International Institute for Carbon Neutral Energy Research (WPI-I2CNER), sponsored by MEXT.

PY - 2013/4/8

Y1 - 2013/4/8

N2 - Highly efficient photovoltaic cells based on a bulk heterojunction configuration composed of C70 with various donor materials at 5 wt.% donor concentration were fabricated. The tetraphenyldibenzoperiflanthene (DBP) donor achieved the highest power conversion efficiency (ηPCE) of 6.4% for the optimized cell. The improved performance with DBP arises from a combination of a higher absorption coefficient than 1,1-bis-(4-bis(4-methyl- phenyl)-amino-phenyl)-cyclohexane and a symmetrical molecular structure. The high ηPCE with only 5 wt. donor is attributed to a sufficient donor concentration for enhanced Frenkel exciton dissociation in C70, while efficiency and electron mobility decrease at higher donor concentrations.

AB - Highly efficient photovoltaic cells based on a bulk heterojunction configuration composed of C70 with various donor materials at 5 wt.% donor concentration were fabricated. The tetraphenyldibenzoperiflanthene (DBP) donor achieved the highest power conversion efficiency (ηPCE) of 6.4% for the optimized cell. The improved performance with DBP arises from a combination of a higher absorption coefficient than 1,1-bis-(4-bis(4-methyl- phenyl)-amino-phenyl)-cyclohexane and a symmetrical molecular structure. The high ηPCE with only 5 wt. donor is attributed to a sufficient donor concentration for enhanced Frenkel exciton dissociation in C70, while efficiency and electron mobility decrease at higher donor concentrations.

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