Chlorinated indium tin oxide electrode by InCl{sub 3} aqueous solution for high-performance organic light-emitting diodes

Journal Article · Mon Apr 11 00:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4946774· OSTI ID:22591587

Hu, Yun; Wang, Bo; Wang, Zhao-Kui; Liao, Liang-Sheng ^[1]; Zhou, Dong-Ying ^[1]

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1. Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123 (China)

The authors develop a facile and effective method to produce the chlorinated indium tin oxide (Cl-ITO) treated by InCl{sub 3} aqueous solution and UV/ozone. The work function of the Cl-ITO achieved by this treatment is as high as 5.69 eV, which is increased by 1.09 eV compared with that of the regular ITO without any treatment. Further investigation proved that the enhancement of the work function is attributed to the formation of In-Cl bonds on the Cl-ITO surface. Green phosphorescent organic light-emitting devices based on the Cl-ITO electrodes exhibit excellent electroluminescence performance, elongating lifetime due to the improvement in hole injection.

• OSTI ID: 22591587
• Journal Information: Applied Physics Letters, Vol. 108, Issue 15; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AQUEOUS SOLUTIONS
ELECTRODES
ELECTROLUMINESCENCE
INDIUM CHLORIDES
LIGHT EMITTING DIODES
PERFORMANCE
TIN OXIDES
VISIBLE RADIATION
WORK FUNCTIONS