Fast-response light-emitting electrochemical cells based on neutral iridium(III) complex
- Authors
- Shin, Ik-Soo; Lim, Hong-Chul; Oh, Jeong-Wook; Lee, Jin-Kyu; Kim, Tae Hyun; Kim, Hasuck
- Issue Date
- Jan-2011
- Publisher
- Elsevier BV
- Keywords
- Light-emitting electrochemical cell LEC; Iridium(III); Supporting electrolyte; Response time
- Citation
- Electrochemistry Communications, v.13, no.1, pp 64 - 67
- Pages
- 4
- Journal Title
- Electrochemistry Communications
- Volume
- 13
- Number
- 1
- Start Page
- 64
- End Page
- 67
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/16834
- DOI
- 10.1016/j.elecom.2010.11.014
- ISSN
- 1388-2481
1873-1902
- Abstract
- In this study, light-emitting electrochemical cells (LECs) based on neutral iridium(III) bis(2-phenylquinolato-N, C-2')(3-isoquinaldate) were fabricated. An admixed solid supporting electrolyte tetra-n-butylammonium tetrafluoroborate (TBABF(4)) is employed in the emitting layer, and it facilitates charge injection with decreasing the potential barrier under a biased voltage. The cells generate an electroluminescence (EL) of 300 cd m(-2) at -3.8 V. When the molar ratio of TBABF4 to the complex in the device was 2:1, a fast EL response of 0.8 s was obtained at -4.0 V after the several times of preconditioning. As the quantity of the supporting electrolyte increased, a faster and brighter EL response was obtained. (C) 2010 Elsevier RV. All rights reserved.
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