Preparation by Spin-Coating Technology and Characterization of UV-Enhanced Lumogen Film
JIANG Lin, ZHANG Da-wei*, TAO Chun-xian, HUANG Yuan-shen, WANG Qi, NI Zheng-ji, ZHUANG Song-lin
Shanghai Key Laboratory of Modern Optical System, Optical Instrument and Systems Engineering Center of the Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
Abstract:As an effective way to increase the UV response for CCD/CMOS, the advantage of the Lumogen film is the simple process and low cost. In the present paper the Lumogen film was deposited onto fused silica slides by the spin-coating way, which has less damage than PVD physical vacuum deposition) way. The main test and analysis of the thin-film include transmission spectrum, absorption spectrum, and excitation and emission spectrum. It was showed that these coatings were transmitted well in visible region (λ>400 nm), and emitted a yellowish green glow centered at ~525 nm together with a wide excitation spectrum range from 200 to 400 nm. The synthesis shows that Lumogen coatings match accurately with the detected spectrum of conventional silicon-based image sensors, which makes this kind of thin films an ultraviolet responsive coating for sensors.
[1] Li Flora M, Nathan A. CCD Image Sensors in Deep-Ultravioler: Degradation Behavior and Danage Mechanisms. Berlin: Springer, 2005. 38. [2] DU Chen-guan, SUN Li-qun, DING Zhi-tian(杜晨光,孙利群,丁志田). Optical Technique(光学技术), 2010, 36(5): 753. [3] Franks W A R, Kiik M J. IEEE Transactions on Electron Devices, 2003, 50(2): 352. [4] HAN Xiu-mei, LIN Jun, LI Zhe, et al(韩秀梅,林 君,李 哲,等). Journal of Rare Earths(中国稀土学报), 2008, 26(3): 443. [5] Dasilva M V, Perea M F, Méndez J A, et al. Optics Express, 2009, 17(25): 22773. [6] Klampaftis E, Ross D, McIntosh K R, et al. Solar Energy Materials & Solar Cells, 2009, 93: 1183. [7] Xu Y F, Zhang H J, Chen Q, et al. Chinses Journal of Chemical Physics, 2006, 19(2): 152. [8] Kwon M S, Kim C J, et al. Journal of Materials Science, 2005, 40:4089. [9] SI Wei, JIANG Da, GAO Hong(司 伟,姜 妲,高 宏). Chinese Rare Earths(稀土), 2008, 29(5): 24. [10] Kim I G, Park S, Kang S G, et al. Journal of Luminescence, 2010, 130: 1521. [11] Zhang J, Qu K, Yang X X. IEEE Electron Device Letter, 2009, 30(9): 1005. [12] Chen C Y, Yeh D M, Lu Y C. Applied Physics Letters, 2009, 89: 2031131. [13] Keough S J, Hanley T L, Wedding A B, et al. Surface Science, 2007, 601: 5744. [14] ZHANG Zheng-xing(张正行). Organic Spectral Analysis(有机光谱分析). Beijing:People’s Medical Publishing House(北京:人民卫生出版社),2009. 33.