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Tunable thermochromism in N-annulated perylene diimide thin films | Synapse

February 26, 2026Open Access

Tunable thermochromism in N-annulated perylene diimide thin films

Key Points

The research aims to explore the tunable thermochromic properties of N-annulated perylene diimide blended with polyethylenimine.
Coated N-annulated perylene diimide with branched polyethylenimine on a substrate
Utilized green solvents in film preparation
Conducted UV-Visible spectroscopy to analyze color transitions
Observed time-temperature dependent color transitions in the films
Confirmed the effectiveness of the blend in altering thermal response of the material
Demonstrated potential applications in smart materials and sensors

Abstract

N-annulated perylene diimide (PDIN-H) blended with branched polyethylenimine (PEI) and green-solvents are coated to afford thermochromic thin films on a robust substrate. Tunable timetemperature colour transitions are observed. UV-Visible spectra...

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Cite This Study

Wolfe et al. (Thu,) studied this question.

synapsesocial.com/papers/699fe3d995ddcd3a253e7dc6 https://doi.org/https://doi.org/10.1039/d5cc06956d