New blue phosphorescence from trifluorosulfonyl-substituted iridium complexes
SCIE
SCOPUS
- Title
- New blue phosphorescence from trifluorosulfonyl-substituted iridium complexes
- Authors
- HA, YEON HEE; SOHN, SUNYOUNG; HAN, SEUNG-HOON; KIM, BOND GON; AHN, HYUNGJU; JUNG, SUNGJUNE; KWON, SOON-KI; KIM, YUN-HI
- Date Issued
- 2019-04
- Publisher
- ELSEVIER SCI LTD
- Abstract
- For color-pure phosphorescence organic light emitting diodes (PHOLEDs), we synthesized the trifluorometh) sulfonyl substituted ligand and two new blue Iridium complexes with perfluoro-sulfonyl group (SOCF(3)pic an, SOCF(3)mpic). The both iridium complexes showed similar photophysical and thermal properties while the HON energy leves of two Iridium complexes slightly differnet to be -5.84 eV for SOCF(3)pic and -5.74 eV fa SOCF(3)mpic, respectively. The device with the SOCF(3)mpic dopant exhibited higher device efficiencies of 7.17 cd A and 3.7% compared to that with the SOCF(3)pic dopant (4.03 cd/A and 2.78%). Two-dimensional GIXD image of scattered X-ray intensity from surface to full depth for SOCF(3)pic-doped and SOCF(3)mpic-doped TCTA:4PTP films were characterized for preferential orientation along the out-of-plane direction.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/94615
- DOI
- 10.1016/j.dyepig.2018.12.062
- ISSN
- 0143-7208
- Article Type
- Article
- Citation
- DYES AND PIGMENTS, vol. 163, page. 684 - 691, 2019-04
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.