All solution-processed red organic light-emitting diode based on a new thermally cross-linked heteroleptic Ir(iii) complex. Issue 43 (30th October 2018)

• Record Type: Journal Article
• Authors: Cho, Woosum; Reddy, Saripally Sudhaker; Kim, Junyoung; Cho, Young-Rae; Jin, Sung-Ho
• Is Part Of: Journal of materials chemistry. Volume 6:Issue 43(2018)
• Page Start: 11714
• Page End: 11721
• Publication Date: 2018-10-30
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c8tc04138e
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : A novel cross-linkable red iridium(iii ) complex and electron transport material were designed and synthesized. The newly cross-linkable red Ir(iii ) complex was successfully thermally cross-linked with a cross-linkable host in the emitting layer (EML). After cross-linking, the EML was not damaged by organic solvents. Abstract : A novel cross-linkable red iridium(iii ) complex and electron transport material were designed and synthesized for use in the fabrication of solution-processed phosphorescent organic light-emitting diodes (PHOLEDs). The newly cross-linkable red Ir(iii ) complex was successfully thermal cross-linked with a cross-linkable host in the emitting layer (EML). After cross-linking, the EML was found not to be damaged by organic solvents. A maximum external quantum efficiency (EQE) of 4.64% (2.77 cd A −1 ) was achieved for deep-red PHOLEDs after rinsing, which was similar to the EQE of 4.59% (2.52 cd A −1 ) after rinsing the deep-red PHOLEDs with thermal cross-linking.