Improved performance of perovskite light-emitting diodes using a PEDOT:PSS and MoO3 composite layer. Issue 35 (18th August 2016)

• Record Type: Journal Article
• Authors: Kim, Da Bin; Yu, Jae Choul; Nam, Yun Seok; Kim, Dae Woo; Jung, Eui Dae; Lee, Sang Yun; Lee, Seungjin; Park, Jong Hyun; Lee, Ah-Young; Lee, Bo Ram; Di Nuzzo, Daniele; Friend, Richard H.; Song, Myoung Hoon
• Is Part Of: Journal of materials chemistry. Volume 4:Issue 35(2016)
• Page Start: 8161
• Page End: 8165
• Publication Date: 2016-08-18
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c6tc02099b
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : We report highly efficient perovskite LEDs with a reduced hole injection barrier and improved crystallinity of perovskite using a PEDOT:MoO3 composite layer. Abstract : 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 CH3 NH3 PbBr3 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.