Single-Layer Light-Emitting Diodes Using Organometal Halide Perovskite/Poly(ethylene oxide) Composite Thin Films

Organometal halide perovskite and poly(ethylene oxide) composite thin films are studied. Single‐layer light‐emitting diodes using the composite thin film sandwiched between indium tin oxide and indium‐gallium eutectic alloy exhibit a low turn‐on voltage and high brightness because of the ionic condu...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2015-09, Vol.27 (35), p.5196-5202
Main Authors: Li, Junqiang, Bade, Sri Ganesh R., Shan, Xin, Yu, Zhibin
Format: Article
Language:English
Subjects:
composites
Electric potential
Halides
Indium tin oxide
ionic conductive polymers
Ionic conductivity
Light-emitting diodes
organometal halide perovskites
Oxides
Perovskites
Thin films
Voltage
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Summary:Organometal halide perovskite and poly(ethylene oxide) composite thin films are studied. Single‐layer light‐emitting diodes using the composite thin film sandwiched between indium tin oxide and indium‐gallium eutectic alloy exhibit a low turn‐on voltage and high brightness because of the ionic conductivity of the composite film and the formation of a p‐i‐n homojunction.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201502490