Tunable thermochromism in N-annulated perylene diimide thin films

Chemical Communications 2026 Open access

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Authors: Kathryn M Wolfe, Gregory Charles Welch
DOI: 10.1039/d5cc06956d
Cited by: 1
References: 28

Abstract

An N-annulated perylene diimide (PDIN-H) blended with branched polyethylenimine (PEI) and green solvents is coated to afford thermochromic thin films on a robust substrate. Tunable time-temperature colour transitions are observed with dependence on PDIN-H loading. UV-Visible spectra, chromaticity diagrams, (polarized) optical microscopy, and kinetic modelling reveal dynamic acid-base chemistry.

Fields of Study & Subjects

Polydiacetylene-based materials and applications Photochromic and Fluorescence Chemistry Luminescence and Fluorescent Materials

Publication details

Journal / source
Chemical Communications
Publisher
Royal Society of Chemistry (RSC)
Volume
62
Issue
23
Pages
6319–6323
Publication date
1 January 2026
Language
EN