Sub-5 nm single crystalline organic p–n heterojunctions

Xiao，Mingchao1,2; Liu，Jie1; Liu，Chuan3; Han，Guangchao1; Shi，Yanjun1; Li，Chunlei1; Zhang，Xi1; Hu，Yuanyuan4; Liu，Zitong1; Gao，Xike5; Cai，Zhengxu6; Liu，Ji7; Yi，Yuanping1; Wang，Shuai2; Wang，Dong1; Hu，Wenping8; Liu，Yunqi1; Sirringhaus，Henning9; Jiang，Lang1,10

2021-12-01

10.1038/s41467-021-23066-3

Nature Communications   影响因子和分区

2041-1723

The cornerstones of emerging high-performance organic photovoltaic devices are bulk heterojunctions, which usually contain both structure disorders and bicontinuous interpenetrating grain boundaries with interfacial defects. This feature complicates fundamental understanding of their working mechanism. Highly-ordered crystalline organic p–n heterojunctions with well-defined interface and tailored layer thickness, are highly desirable to understand the nature of organic heterojunctions. However, direct growth of such a crystalline organic p–n heterojunction remains a huge challenge. In this work, we report a design rationale to fabricate monolayer molecular crystals based p–n heterojunctions. In an organic field-effect transistor configuration, we achieved a well-balanced ambipolar charge transport, comparable to single component monolayer molecular crystals devices, demonstrating the high-quality interface in the heterojunctions. In an organic solar cell device based on the p–n junction, we show the device exhibits gate-tunable open-circuit voltage up to 1.04 V, a record-high value in organic single crystalline photovoltaics.

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英语

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其他

WOS:000657822800009

2-s2.0-85105799703

Scopus

1.Beijing National Laboratory for Molecular Sciences,Institute of Chemistry Chinese Academy of Sciences,Beijing,China
2.Key laboratory of Material Chemistry for Energy Conversion and Storage,Ministry of Education,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan,China
3.State Key Laboratory of Optoelectronic Materials and Technologies and the Guangdong Province Key Laboratory of Display Material and Technology,School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou,China
4.Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education,School of Physics and Electronics,Hunan University,Changsha,China
5.Shanghai Institute of Organic Chemistry,Chinese Academy of Sciences,Shanghai,China
6.Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications,School of Materials Science & Engineering,Beijing Institute of Technology,Beijing,China
7.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,China
8.College of Science,Tianjin University,Tianjin,China
9.Cavendish Laboratory,University of Cambridge,Cambridge,United Kingdom
10.University of the Chinese Academy of Sciences,Beijing,China

Xiao，Mingchao,Liu，Jie,Liu，Chuan,等. Sub-5 nm single crystalline organic p–n heterojunctions[J]. Nature Communications,2021,12(1).

Xiao，Mingchao.,Liu，Jie.,Liu，Chuan.,Han，Guangchao.,Shi，Yanjun.,...&Jiang，Lang.(2021).Sub-5 nm single crystalline organic p–n heterojunctions.Nature Communications,12(1).

Xiao，Mingchao,et al."Sub-5 nm single crystalline organic p–n heterojunctions".Nature Communications 12.1(2021).