Blue-emitting bis-tridentate Ir(iii) phosphors: OLED performances vs. substituent effects

Author:

Kuo Hsin-Hung1234,Hsu Ling-Yang1234,Tso Jen-Yung5674,Hung Wen-Yi5674ORCID,Liu Shih-Hung894,Chou Pi-Tai894ORCID,Wong Ken-Tsung894ORCID,Zhu Ze-Lin10111213,Lee Chun-Sing10111213ORCID,Jen Alex K.-Y.14111213ORCID,Chi Yun123414ORCID

Affiliation:

1. Department of Chemistry and Frontier Research Center on Fundamental and Applied Sciences of Matters

2. National Tsing Hua University

3. Hsinchu 30013

4. Taiwan

5. Institute of Optoelectronic Sciences

6. National Taiwan Ocean University

7. Keelung 20224

8. Department of Chemistry and Instrumentation Center, National Taiwan University

9. Taipei 10617

10. Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry

11. City University of Hong Kong

12. Hong Kong SAR

13. China

14. Department of Materials Science and Engineering and Department of Chemistry

Abstract

Dependence of external quantum efficiency (EQE) and radiative decay lifetime of blue-emitting OLED is established with photostable, bis-tridentate Ir(iii) emitters, giving max. EQE and luminescence of 12.2% and 18 980 cd m−2, and with CIEx,y coordinates between (0.16, 0.22) and (0.17, 0.27).

Funder

City University of Hong Kong

Ministry of Science and Technology, Taiwan

Ministry of Education

Publisher

Royal Society of Chemistry (RSC)

Subject

Materials Chemistry,General Chemistry

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