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- Kim, Jin Young
- Next Generation Energy Lab.
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High performance polymer light-emitting diodes with N-type metal oxide/conjugated polyelectrolyte hybrid charge transport layers
- Author(s)
- Park, Ji Sun, Lee, Bo Ram, Jeong, Eunjae, Lee, Hyun-Jung, Lee, Ju Min, Kim, Ji-Seon, Kim, Jin Young, Woo, Han Young, Kim, Sang Ouk, Song, Myoung Hoon
- Issued Date
- 2011-10
- Citation
- APPLIED PHYSICS LETTERS, v.99, no.16, pp.163305
- Abstract
- 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).
- Publisher
- AMER INST PHYSICS
- ISSN
- 0003-6951
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