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Optical Society of Korea (한국광학회)
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Thickness Dependence of Ultraviolet-excited Photoluminescence Efficiency of Lumogen Film Coated on Charge-coupled Device

  • Tao, Chunxian (University of Shanghai for Science and Technology, School of Optical-Electrical and Computer Engineering, Shanghai Key Laboratory of Modern Optical System) ;
  • Ruan, Jun (University of Shanghai for Science and Technology, School of Optical-Electrical and Computer Engineering, Shanghai Key Laboratory of Modern Optical System) ;
  • Shu, Shunpeng (University of Shanghai for Science and Technology, School of Optical-Electrical and Computer Engineering, Shanghai Key Laboratory of Modern Optical System) ;
  • Lu, Zhongrong (University of Shanghai for Science and Technology, School of Optical-Electrical and Computer Engineering, Shanghai Key Laboratory of Modern Optical System) ;
  • Hong, Ruijin (University of Shanghai for Science and Technology, School of Optical-Electrical and Computer Engineering, Shanghai Key Laboratory of Modern Optical System) ;
  • Zhang, Dawei (University of Shanghai for Science and Technology, School of Optical-Electrical and Computer Engineering, Shanghai Key Laboratory of Modern Optical System) ;
  • Han, Zhaoxia (University of Shanghai for Science and Technology, School of Optical-Electrical and Computer Engineering, Shanghai Key Laboratory of Modern Optical System)
  • Received : 2017.02.23
  • Accepted : 2017.07.10
  • Published : 2017.08.25
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Abstract

In order to investigate the ultraviolet-excited photoluminescence properties of phosphor coatings and their relationship to thickness, Lumogen coatings with different thicknesses were deposited on quartz substrates and charge-coupled device chips by thermal evaporation. The variation of the film thickness affected the crystallite size, surface roughness and fluorescence signal. It was found that the Lumogen coating with the thickness of 420 nm has the largest luminescent signal and conversion efficiency, and the corresponding coated charge-coupled devices had the maximum quantum efficiency in the ultraviolet. These results provided one key parameter for improving the sensitivity of Lumogen coated charge-coupled devices to ultraviolet light.

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