Aromatic Hydrocarbon Based and Space Interactions Induced Color-tunable Single-component Organic Phosphorescence

Area of Science:

• Materials Science
• Photophysics
• Organic Chemistry

Background:

• Phosphorescent materials are crucial for various applications, necessitating improvements in their photophysical properties.
• Developing new systems and approaches is key to enhancing phosphorescence.

Purpose of the Study:

• To explore a new approach for improving phosphorescent materials.
• To investigate the photophysical properties of triphenylmethane (TPM).

Main Methods:

• Synthesis and characterization of triphenylmethane (TPM).
• Analysis of photophysical properties, including color tunability and emission lifetime.
• Comparison with tetraphenylmethane (TTPM) crystal structure and theoretical calculations.

Main Results:

• Triphenylmethane (TPM) exhibits excellent color-tunable phosphorescence in air, spanning from cyan to orange (525 nm-616 nm).
• TPM demonstrates an ultralong phosphorescence lifetime of 836 ms.
• Space interactions forming various clusters are identified as crucial for the observed color-tunable phosphorescence.

Conclusions:

• Triphenylmethane (TPM) is a promising material for advanced phosphorescent applications.
• Molecular clustering driven by space interactions is a key factor in achieving tunable phosphorescence.
• This study provides insights into designing novel phosphorescent materials with tailored properties.