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Proceedings Paper

High photo-response organic ultraviolet photodectectors based on phosphorescent materials
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Paper Abstract

We demonstrated ultraviolet organic photodetectors based on poly(N-vinylcarbazole) polymeric matrix (PVK) and phosphorescent material of bis[2-(4-tertbutylphenyl)benzothiazolato-N,C2'] iridium(acetylacetonate) [(t-bt)2Ir(acac)] blend film. The structures are the indium-tin oxide (ITO)/PEDOT : PSS/PVK/Bphen/Ag and ITO/PEDOT : PSS/PVK : (t-bt)2Ir(acac) (1 : 10 %wt)/Bphen/Ag. Under UV light illumination, a high photocurrent density of 3.44 mA/cm2 at -4 V was obtained, which is 6.6 times higher than that of without (t-bt)2Ir(acac) material. The superior performances of the device doped with (t-bt)2Ir(acac) material resulted from the UV light absorption efficiency and triplet nature of the phosphorescent complex.

Paper Details

Date Published: 2 September 2014
PDF: 6 pages
Proc. SPIE 9284, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronics Materials and Devices for Sensing and Imaging, 928405 (2 September 2014); doi: 10.1117/12.2068985
Show Author Affiliations
Xiao Wang, Univ. of Electronic Science and Technology of China (China)
Jungsheng Yu, Univ. of Electronic Science and Technology of China (China)
Jiang Huang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 9284:
7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronics Materials and Devices for Sensing and Imaging
Yadong Jiang; Junsheng Yu; Bernard Kippelen, Editor(s)

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