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Solution-processed small-molecule solar cells: breaking the 10% power conversion efficiency.

ABSTRACT: A two-dimensional conjugated small molecule (SMPV1) was designed and synthesized for high performance solution-processed organic solar cells. This study explores the photovoltaic properties of this molecule as a donor, with a fullerene derivative as an acceptor, using solution processing in single junction and double junction tandem solar cells. The single junction solar cells based on SMPV1 exhibited a certified power conversion efficiency of 8.02% under AM 1.5 G irradiation (100 mW cm(-2)). A homo-tandem solar cell based on SMPV1 was constructed with a novel interlayer (or tunnel junction) consisting of bilayer conjugated polyelectrolyte, demonstrating an unprecedented PCE of 10.1%. These results strongly suggest solution-processed small molecular materials are excellent candidates for organic solar cells.

SUBMITTER: Liu Y

PROVIDER: S-EPMC3842540 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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Solution-processed small-molecule solar cells: breaking the 10% power conversion efficiency.

Liu Yongsheng Y Chen Chun-Chao CC Hong Ziruo Z Gao Jing J Yang Yang Michael YM Zhou Huanping H Dou Letian L Li Gang G Yang Yang Y

Scientific reports 20131128

A two-dimensional conjugated small molecule (SMPV1) was designed and synthesized for high performance solution-processed organic solar cells. This study explores the photovoltaic properties of this molecule as a donor, with a fullerene derivative as an acceptor, using solution processing in single junction and double junction tandem solar cells. The single junction solar cells based on SMPV1 exhibited a certified power conversion efficiency of 8.02% under AM 1.5 G irradiation (100 mW cm(-2)). A ...[more]

PMID: 24285006

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