Improved performance of perovskite light-emitting diodes using a PEDOT:PSS and MoO3 composite layer
- Kim, Da Bin
- Yu, Jaw Choul
- Nam, Yun Seok
- Kim, Dae Woo
- Jung, Eui Dae
- Lee, Sang Yun
- Lee, Seungjin
- Park, Jong Hyun
- Lee, Ah-Young
- Lee, Bo Ram
- Nuzzo, Daniele Di
- Friend, Richard H.
- Song, Myoung Hoon
Publication date
September 2016
DOI Publisher
Royal Society of Chemistry (RSC) ISSN
2050-7526 Journal
Journal of Materials Chemistry CAbstract
We demonstrate the enhanced performance of perovskite light-emitting diodes (PeLEDs) using a solution-processable MoO3 and PEDOT:PSS (PEDOT:MoO3) composite layer as the hole transport layer (HTL). The PEDOT:MoO3 composite layer presents improved hole injection through a reduction in the contact barrier between the HTL and the CH3NH3PbBr3 layer and enhanced crystallinity of the perovskite film. The optimized PeLEDs with the PEDOT:MoO3 composite film showed enhanced external quantum efficiency (EQE) and maximum luminous efficiency, compared to a PeLED using a pristine PEDOT:PSS layer.clos
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