Ontology highlight
ABSTRACT:
SUBMITTER: Zou W
PROVIDER: S-EPMC5807308 | biostudies-literature | 2018 Feb
REPOSITORIES: biostudies-literature
Zou Wei W Li Renzhi R Zhang Shuting S Liu Yunlong Y Wang Nana N Cao Yu Y Miao Yanfeng Y Xu Mengmeng M Guo Qiang Q Di Dawei D Zhang Li L Yi Chang C Gao Feng F Friend Richard H RH Wang Jianpu J Huang Wei W
Nature communications 20180209 1
Efficiency roll-off is a major issue for most types of light-emitting diodes (LEDs), and its origins remain controversial. Here we present investigations of the efficiency roll-off in perovskite LEDs based on two-dimensional layered perovskites. By simultaneously measuring electroluminescence and photoluminescence on a working device, supported by transient photoluminescence decay measurements, we conclude that the efficiency roll-off in perovskite LEDs is mainly due to luminescence quenching wh ...[more]