Strategies for Air‐Stable and Tunable Monolayer MoS
            2
            ‐Based Hybrid Photodetectors with High Performance by Regulating the Fully Inorganic Trihalide Perovskite Nanocrystals

Abstract Perovskite nanocrystals (NCs) have emerged as attractive gain materials for solution-processed microlasers. Despite the recent surge of reports in this feld, it is still challenging to develop low-cost perovskite NCbased microlasers with high performance. Herein, we demonstrate low-threshold, spectrally tunable lasing from ensembles of CsPbBr3 NCs deposited on silica microspheres. Multiple whispering-gallery-mode lasing is achieved from individual NC/microspheres with a low threshold of ∼3.1 µJ cm−2 and cavity quality factor of ∼1193. Through time-resolved photoluminescence measurements, electron-hole plasma recombination is elucidated as the lasing mechanism. By tuning the microsphere diameter, the desirable single-mode lasing is successfully achieved. Remarkably, the CsPbBr3 NCs display durable room-temperature lasing under ∼107 shots of pulsed laser excitation, substantially exceeding the stability of conventional colloidal NCs. These CsPbBr3 NC-based microlasers can be potentially useful in photonic applications.

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Facile and rapid synthesis of high performance perovskite nanocrystals CsPb(X/Br)3 (X= Cl, I) at room temperature

Optical Materials ◽

10.1016/j.optmat.2019.109528 ◽

2020 ◽

Vol 99 ◽

pp. 109528 ◽

Cited By ~ 4

Author(s):

Jidong Deng ◽

Jiao Xun ◽

Rongxing He

Keyword(s):

High Performance ◽

Room Temperature ◽

Rapid Synthesis ◽

Perovskite Nanocrystals

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Investigating the structure–function relationship in triple cation perovskite nanocrystals for light-emitting diode applications

Journal of Materials Chemistry C ◽

10.1039/d0tc02038a ◽

2020 ◽

Vol 8 (34) ◽

pp. 11805-11821 ◽

Cited By ~ 4

Author(s):

Parth Vashishtha ◽

Sjoerd A. Veldhuis ◽

Sai S. H. Dintakurti ◽

Nicole L. Kelly ◽

Benjamin E. Griffith ◽

...

Keyword(s):

Structure Function ◽

High Performance ◽

Surface Passivation ◽

Light Emitting Diode ◽

Environmental Stability ◽

Light Emitting ◽

Perovskite Nanocrystals ◽

Structure Function Relationship ◽

Function Relationship

Novel Cs-containing triple cation perovskite nanocrystals produce high-performance LEDs as a result of improved surface passivation and environmental stability.

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Silica coating enhances the stability of inorganic perovskite nanocrystals for efficient and stable down-conversion in white light-emitting devices

Nanoscale ◽

10.1039/c8nr07022a ◽

2018 ◽

Vol 10 (43) ◽

pp. 20131-20139 ◽

Cited By ~ 57

Author(s):

Fei Zhang ◽

Zhi-Feng Shi ◽

Zhuang-Zhuang Ma ◽

Ying Li ◽

Sen Li ◽

...

Keyword(s):

White Light ◽

High Performance ◽

Silica Coating ◽

White Led ◽

Light Emitting ◽

Perovskite Nanocrystals ◽

Light Emitting Devices ◽

Improved Stability ◽

The Stability ◽

Down Conversion

CsPbBr3 QDs/silica composites with substantially improved stability were applied as the color-converting layer for high-performance white LED fabrication.

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High-performance photodetector using CsPbBr3 perovskite nanocrystals and graphene hybrid channel

Journal of Materials Science ◽

10.1007/s10853-020-05434-4 ◽

2020 ◽

Vol 56 (3) ◽

pp. 2341-2346

Author(s):

Yongli Che ◽

Xiaolong Cao ◽

Yating Zhang ◽

Jianquan Yao

Keyword(s):

High Performance ◽

Perovskite Nanocrystals

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Cerium‐Doped Perovskite Nanocrystals for Extremely High‐Performance Deep‐Ultraviolet Photoelectric Detection

Advanced Optical Materials ◽

10.1002/adom.202100423 ◽

2021 ◽

pp. 2100423

Author(s):

Dongyu Li ◽

Wen Xu ◽

Donglei Zhou ◽

Yanan Ji ◽

Nan Ding ◽

...

Keyword(s):

High Performance ◽

Perovskite Nanocrystals ◽

Photoelectric Detection ◽

Deep Ultraviolet

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Solid-state synthesis of stable and color tunable cesium lead halide perovskite nanocrystals and the mechanism of high-performance photodetection in a monolayer MoS2/CsPbBr3 vertical heterojunction

Journal of Materials Chemistry C ◽

10.1039/d0tc01306d ◽

2020 ◽

Vol 8 (26) ◽

pp. 8917-8934 ◽

Cited By ~ 3

Author(s):

Joydip Ghosh ◽

Larionette P. L. Mawlong ◽

Manasa G. B. ◽

Alexander J. Pattison ◽

Wolfgang Theis ◽

...

Keyword(s):

Solid State ◽

High Performance ◽

High Stability ◽

Solid State Synthesis ◽

Monolayer Mos2 ◽

Perovskite Nanocrystals ◽

Color Tunable ◽

Halide Perovskite ◽

Lead Halide

Color tunable cesium lead halide perovskite nanocrystals with high stability and the mechanism of high-performance photodetection in a monolayer MoS2/CsPbBr3 vertical heterojunction.

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