High performance polymer light-emitting diodes with N-type metal oxide/conjugated polyelectrolyte hybrid charge transport layers | Zendy

Ji Sun Park | Zendy; Bo Ram Lee | Zendy; Eunjae Jeong | Zendy; HyunJung Lee | Zendy; Jeong Yong Lee | Zendy; JiSeon Kim | Zendy; Jin Young Kim | Zendy; Han Young Woo | Zendy; Sang Ouk Kim | Zendy; Myoung Hoon Song | Zendy

Open Access

High performance polymer light-emitting diodes with N-type metal oxide/conjugated polyelectrolyte hybrid charge transport layers

Author(s) -

Ji Sun Park,

Bo Ram Lee,

Eunjae Jeong,

HyunJung Lee,

Jeong Yong Lee,

JiSeon Kim,

Jin Young Kim,

Han Young Woo,

Sang Ouk Kim,

Myoung Hoon Song

Publication year - 2011

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3653962

Subject(s) - electroluminescence , materials science , oxide , light emitting diode , layer (electronics) , polymer , metal , diode , polyelectrolyte , optoelectronics , conjugated system , oled , chemical engineering , nanotechnology , composite material , engineering , metallurgy

We present an interfacial engineering strategy employing n-type-metal-oxide/conjugated-polyelectrolyte (CPE) hybrid charge-transport layers for highly efficient polymer light-emitting diodes (PLEDs). The hybrid metal-oxide/CPE layer facilitates electron-injection, while blocking hole-transport, and thereby maximizes electron-hole recombination within the emitting layer. A series of metal-oxide/CPE combinations were tested in inverted PLEDs (FTO/metal-oxide/CPF8BT/MoO3/Au). Specifically, HfO2/CPE double layer achieved an electroluminescence (EL) efficiency of up to 25.8 cd/A (@ 6.4 V, one of the highest values reported for fluorescent PLEDs).open11

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