Fig. 1: Chemical structure and photophysical property of TDBA-based host materials.

a Chemical structure of the synthesized TDBA-based host materials. b Photoluminescence spectra of the TDBA-based host materials in toluene (0.01 mM). c Photoluminescence spectra of the TDBA-based host materials as neat films. d Transient photoluminescence decay spectra of the neat films (IRF: instruments response function).