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Cited by 219

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van der Waals Heterojunction Devices Based on Organohalide Perovskites and Two-Dimensional Materials

Open access
Cheng, Hung-Chieh, Wang, Gongming, Li, Dehui, He, Qiyuan, Yin, Anxiang, Liu, Yuan, Wu, Hao, Ding, Mengning, Huang, Yu, Duan, Xiangfeng·2016·Nano Letters

Abstract

The recently emerged organohalide perovskites (e.g., CH3NH3PbI3) have drawn intense attention for high efficiency solar cells. However, with a considerable solubility in many solvents, these perovskites are not typically compatible with conventional lithography processes for more complicated device fabrications that are important for both fundamental studies and technological applications. Here, we report the creation of novel heterojunction devices based on perovskites and two-dimensional (2D) crystals by taking advantage of the layered characteristic of lead iodide (PbI2) and vapor-phase intercalation. We show that a graphene/perovskite/graphene vertical stack can deliver a highest photoresponsivity of ∼950 A/W and photoconductive gain of ∼2200, and a graphene/WSe2/perovskite/graphene heterojunction can display a high on/off ratio (∼10(6)) transistor behavior with distinct gate-tunable diode characteristics and open-circuit voltages. Such unique perovskite-2D heterostructures have significant potential for future optoelectronic research and can enable broad possibilities with compositional tunability of organohalide perovskites and the versatility offered by diverse 2D materials.

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Metadata

Authors
Cheng, H.-C., Wang, G., Li, D., He, Q., Yin, A., Liu, Y., Wu, H., Ding, M., Huang, Y., & Duan, X.
Venue
Nano Letters
Published
2015-12-22
Volume
16
Issue
1
Pages
367-373
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2238114835
Cited by
219
References
5
FWCI
11.19
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: van der Waals Heterojunction Devices Based on Organohalide Perovskites and Two-Dimensional Materials. https://app.cochat.ai/papers/10.1021/acs.nanolett.5b03944
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Cheng, H.-C., Wang, G., Li, D., He, Q., Yin, A., Liu, Y., Wu, H., Ding, M., Huang, Y., & Duan, X. (2016). van der Waals Heterojunction Devices Based on Organohalide Perovskites and Two-Dimensional Materials. Nano Letters. https://doi.org/10.1021/acs.nanolett.5b03944

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