Optical and electrical properties of some optical thin film materials

Z. Y. Zhong; Y. D. Jiang; Wei Zhi Li; X. Yang

doi:10.1117/12.674282

9 June 2006 Optical and electrical properties of some optical thin film materials

Z. Y. Zhong, Y. D. Jiang, Wei Zhi Li, X. Yang

Proceedings Volume 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 61492E (2006) https://doi.org/10.1117/12.674282
Event: 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2005, Xian, China

Abstract

A series of optical thin films of organic semiconductor materials including tri-(8-hydroxyquinoline) aluminum (AlQ₃), bis-(2-methyl-8-quinolinolato)-4-(phenyl-phenolato)-aluminium-(III) (B(AlQ)), and N,N'-bis(naphthalen-1-yl)-N,N'-bis(phenyl)benzidine (NPB) were prepared by the vacuum sublimation technique. The optical properties in the UV-visible region of the thin films were investigated through measurements of optical transmittance and absorbance spectra. The optical band gaps were obtained from direct allowed transitions at room temperature by means of the Tauc plots. The Urbach energy and the slope of Urbach edge were calculated, respectively according to the Urbach-edges method. In addition, the single-layer structure devices of glass/metal/organic layer/metal were fabricated, and electrical resistivity of the materials were evaluated in term of the measured the current-voltage characteristics of the prepared devices.

Citation Download Citation

Z. Y. Zhong, Y. D. Jiang, Wei Zhi Li, and X. Yang "Optical and electrical properties of some optical thin film materials", Proc. SPIE 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 61492E (9 June 2006); https://doi.org/10.1117/12.674282

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