Issue 35, 2021

Manipulating crystals through photoexcitation-induced molecular realignment

Abstract

Numerous efforts have been invested in improving the uniform rearrangement in photoinduced crystal engineering due to the fact that molecular ordering is hardly addressed via a traditional photochemical process as a whole. Herein, we present a nonequilibrium strategy, photoexcitation-induced molecular realignment, to manipulate crystal growth and transformation. This strategy allows a dynamic change of molecular conformation upon continuous photoirradiation, wherein the molecular structure remains intact. Consequently, crystal photomanipulation from solution growth to single crystals, polycrystals, and finally to doped films is achieved, accompanied by the phototuning of a series of crystal optical behaviors (e.g. absorption, refraction, fluorescence, and room-temperature phosphorescence). The developed materials are stable because of the molecular conformation kinetically trapped within the minimum energy on the basis of a steady-state design conception. This strategy, relying on the materialization of photoexcitation, provides a paradigm for controlling molecular ordering by light.

Graphical abstract: Manipulating crystals through photoexcitation-induced molecular realignment

Supplementary files

Article information

Article type
Paper
Submitted
07 אפר 2021
Accepted
10 מאי 2021
First published
11 מאי 2021

J. Mater. Chem. C, 2021,9, 11707-11714

Manipulating crystals through photoexcitation-induced molecular realignment

S. Shen, G. Baryshnikov, B. Yue, B. Wu, X. Li, M. Zhang, H. Ågren and L. Zhu, J. Mater. Chem. C, 2021, 9, 11707 DOI: 10.1039/D1TC01605A

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