Dye-doped polymers for blue organic diode lasers

Abstract

Amplified spontaneous emission (ASE) in optically pumped polymeric films containing the luminescent and hole-transporting organic molecule N,N′-Bis(3-methylphenyl)-N,N′diphenylbenzidine (TPD) is demonstrated. ASE is observed in polymer films of polystyrene and poly(N-vinylcarbazole) doped up to 20% with TPD. From these results, we conclude that TPD-based films are candidates for blue-emitting organic diode lasers.