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Halide perovskite nanocrystals for multiphoton applications

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Abstract

Halide perovskite nanocrystals (NCs) are a unique class of NCs with novel properties distinct from those of traditional semiconductor NCs. These exceptional properties of defect tolerance, large absorption coefficients, high brightness, and narrow emission linewidths stem from their atypical band structure. Their facile synthesis and broad colour tunability have attracted widespread interest for application in light emitting devices and lasers. One fledging niche area is the field of multiphoton excited emission where their giant nonlinear optical action cross-sections are highly favorable for imaging applications. This Frontier article examines the state-of-the-art in perovskite NCs for multiphoton applications from the materials science and physics perspectives that include their synthesis and nonlinear optical characterization. Opportunities and challenges of these exceptional NCs as potential fluorescent labels for multiphoton deep tissue microscopy are also highlighted.

Graphical abstract: Halide perovskite nanocrystals for multiphoton applications

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Article information


Submitted
18 Jul 2020
Accepted
07 Sep 2020
First published
08 Sep 2020

Dalton Trans., 2020, Advance Article
Article type
Frontier

Halide perovskite nanocrystals for multiphoton applications

H. He and T. C. Sum, Dalton Trans., 2020, Advance Article , DOI: 10.1039/D0DT02538K

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