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Review Article

Two-dimensional molecular crystalline semiconductors towards advanced organic optoelectronics

Xuemei Dong1, Heshan Zhang1, Yinxiang Li1( ), Bin Liu1, Keyuan Pan1, Yijie Nie1, Mengna Yu2, Mustafa Eginligil1, Juqing Liu1( ), Wei Huang1,2,3 ( )
Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (Nanjing Tech), Nanjing 211816, China
Center for Molecular Systems and Organic Devices (CMSOD), State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
Frontiers Science Center for Flexible Electronics, Xi’an Institute of Flexible Electronics (IFE) and Xi’an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi’an 710072, China
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Abstract

The compelling demand for higher performance and lower cost in the optoelectronics industry has driven the development of organic semiconductors. Molecular crystalline semiconductors (MCSs), especially two-dimensional MCSs (2D-MCSs), possess intrinsic ordered structure, quantum confinement effect, high mobility, unique optical and electrical properties, and more ecological and cheaper production, which make great promises in high-performance optoelectronic applications. Here we provide a review of design principles and synthetic strategies for 2D-MCS materials, exploiting their potential as a revolution option in associated optoelectronic devices. The merits and limitations of each strategy are presented, and these molecular crystals are considered as a competitive choice for emerging semiconducting materials in information science. Finally, the current challenges and future perspectives in this field are also elaborated.

Graphical Abstract

This review focuses on molecular building block design, preparation technology as well as their recent advances in optoelectronic devices of two-dimensional molecular crystalline semiconductors (2D-MCSs).

Keywords

two-dimensional molecular crystalline semiconductors (2D-MCSs)molecular design strategiespreparation techniquesphotoelectronic applications

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Nano Research
Volume 15 Issue 10,
October 2022
Pages 9554-9572
DOI: 10.1007/s12274-022-4549-2

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Cite this article:
Dong X, Zhang H, Li Y, et al. Two-dimensional molecular crystalline semiconductors towards advanced organic optoelectronics. Nano Research, 2022, 15(10): 9554-9572. https://doi.org/10.1007/s12274-022-4549-2
Topics:
Semiconductors

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Received: 27 March 2022
Revised: 12 May 2022
Accepted: 16 May 2022
Published: 24 June 2022
© Tsinghua University Press 2022