Litcius/Paper detail

Lamellar Organic Light-Emitting Crystals Exhibiting Spectral Gain and 3.6% External Quantum Efficiency in Transistors

Liqun Liu, Chang Cai, Zejian Zhang, Shitong Zhang, Jian Deng, Bing Yang, Cheng Gu, Yuguang Ma

2021ACS Materials Letters30 citationsDOI

Abstract

We report an organic lamellar single crystal as a versatile optoelectronic material in optical pumping and light-emitting transistors. The styrene derivative crystals with intrinsically ordered stacking structures, low impurities, and high photoluminescence efficiency offer a low threshold energy of 21 μJ cm–2 for amplified spontaneous emission and extraordinary device performance in terms of a striking external quantum efficiency of 3.63%, far exceeding the benchmark value in this field.

Topics & Concepts

Lamellar structureMaterials scienceOptoelectronicsStackingQuantum efficiencyPhotoluminescenceTransistorPhysicsNuclear magnetic resonanceVoltageComposite materialQuantum mechanicsLuminescence and Fluorescent MaterialsPerovskite Materials and ApplicationsOrganic Electronics and Photovoltaics