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