Facile synthesis of a 2,5-dihydroxyterephthalic acid-based charge transfer cocrystal for photoelectric applications

Herein, a 2,5-dihydroxyterephthalic acid-based cocrystal complex was facilely synthesized using a mixture of ethanolic solutions of the two coformers under a few minutes at room temperature. The high photocurrent ratio of 712 between the illumination and dark states and the successful fabrication of a phosphor-converted light-emitting diode device make this cocrystal complex a promising candidate in fields of photoelectric detectors and solid-state lighting. The assembly of 2,5-dihydroxyterephthalic acid donor and 1,10-phenanthroline acceptor afforded a charge transfer cocrystal complex, which was applied in photoelectric detector and phosphor-converted light-emitting diodes.