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AuthorChen Y.
AuthorSun Y.
AuthorPeng J.
AuthorTang J.
AuthorZheng K.
AuthorLiang Z.
Available date2020-02-05T08:53:38Z
Publication Date2018
Publication NameAdvanced Materials
AbstractConventional 3D organic–inorganic halide perovskites have recently undergone unprecedented rapid development. Yet, their inherent instabilities over moisture, light, and heat remain a crucial challenge prior to the realization of commercialization. By contrast, the emerging 2D Ruddlesden−Popper-type perovskites have recently attracted increasing attention owing to their great environmental stability. However, the research of 2D perovskites is just in their infancy. In comparison to 3D analogues, they are natural quantum wells with a much larger exciton binding energy. Moreover, their inner structural, dielectric, optical, and excitonic properties remain to be largely explored, limiting further applications. This review begins with an introduction to 2D perovskites, along with a detailed comparison to 3D counterparts. Then, a discussion of the organic spacer cation engineering of 2D perovskites is presented. Next, quasi-2D perovskites that fall between 3D and 2D perovskites are reviewed and compared. The unique excitonic properties, electron–phonon coupling, and polarons of 2D perovskites are then be revealed. A range of their (opto)electronic applications is highlighted in each section. Finally, a summary is given, and the strategies toward structural design, growth control, and photophysics studies of 2D perovskites for high-performance electronic devices are rationalized. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
SponsorThis work was supported by Inter-Governmental International Cooperation Project of Science and Technology Commission of Shanghai Municipality (STCSM) under grant No. 17520710100 (Z.L.). K.Z. also acknowledges the support from Swedish Research Council, KAW foundation and NPRP grant #NPRP7-227-1-034 obtained from the Qatar National Research Fund (a member of Qatar Foundation).
PublisherWiley-VCH Verlag
Subject2D perovskites
Subjectcharge transport
Subjectmolecular structures
Title2D Ruddlesden–Popper Perovskites for Optoelectronics
TypeArticle Review
Issue Number2
Volume Number30

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