Stimuli-Responsive Purely Organic Room-Temperature Phosphorescence Materials

Area of Science:

• Materials Science
• Organic Chemistry
• Photophysics

Background:

• Organic phosphorescence relies on intermolecular interactions that promote spin-orbital coupling (SOC) and intersystem crossing (ISC).
• These crucial intermolecular interactions are sensitive to external stimuli, leading to changes in luminescence.

Purpose of the Study:

• To review recent advancements in stimuli-responsive purely organic phosphorescence materials.
• To categorize these materials based on the type of stimuli they respond to.

Main Methods:

• Literature review of stimuli-responsive purely organic phosphorescence.
• Categorization based on stimuli: mechanochromism, mechanoluminescence, photoactivity, acid-responsiveness, etc.

Main Results:

• Purely organic phosphorescence materials exhibit luminescence changes in response to mechanical force, light, acids, and chemical vapors.
• Diverse strategies for designing molecules sensitive to external stimuli have been developed.

Conclusions:

• External stimuli can effectively modulate intermolecular interactions in organic phosphors, enabling tunable luminescence.
• Further development of stimuli-responsive organic phosphorescence holds promise for advanced optical materials and sensors.