Enhancing photon upconversion properties in anthracene derivatives through meticulous control of excluded volume around π-systems

Key Points

• The research aims to improve photon upconversion efficiency in anthracene derivatives by manipulating excluded volume around their π-systems.
• Examined the effects of bulky substituents on anthracene derivatives in both solution and solid states.
• Measured photon upconversion efficiency under controlled conditions.
• Bulky substituents significantly enhanced the efficiency of photon upconversion.
• Improvements were observed in both solution and solid states.