Fluorescent Organic Planar pn Heterojunction Light-Emitting Diodes with Simplified Structure, Extremely Low Driving Voltage, and High Efficiency

Dongcheng Chen; Gaozhan Xie; Xinyi Cai; Ming Liu; Yong Cao; Shi-Jian Su

doi:10.1002/adma.201504290

Fluorescent Organic Planar pn Heterojunction Light-Emitting Diodes with Simplified Structure, Extremely Low Driving Voltage, and High Efficiency

Adv Mater. 2016 Jan 13;28(2):239-44. doi: 10.1002/adma.201504290. Epub 2015 Nov 17.

Authors

Dongcheng Chen¹, Gaozhan Xie¹, Xinyi Cai¹, Ming Liu¹, Yong Cao¹, Shi-Jian Su¹

Affiliation

¹ State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China.

PMID: 26749469
DOI: 10.1002/adma.201504290

Abstract

Fluorescent organic light-emitting diodes capable of radiative utilization of both singlet and triplet excitons are achieved via a simple double-layer planar pn hetero-junction configuration without a conventional emission layer, leading to high external quantum efficiency above 10% and extremely low driving voltages close to the theoretical minima.

Keywords: double-layer devices; fluorescence; organic light-emitting diodes; pn heterojunctions; triplet harvesting.