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Proceedings Paper

Research on photoluminescence of membrane layer of Na2KSb antimony-alkali compound
Author(s): Xiaofeng Li; Fan Yu; Kaijun Song; Yaohong Qian; Ji Tan; Wenbo Yan
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Paper Abstract

This paper describes the measuring method of fluorescence for membrane layer of Na2kSb antimony-alkali compound under glass window and quartz window excited by the laser of wavelengths of 514.5 nm and 785nm. Through comparing the fluorescence intensity of Na2KSb antimony-alkali compound under glass window and quartz window respectively when excited by laser of wavelength of 514.5 nm, it is found that the fluorescence intensity of Na2kSb layer excited with wavelength of 785nm is more suitable for the analysis of membrane layer of Na2ksb antimony-alkali compound under glass window and quartz window. By excitation with the laser in wavelengths of 514.5 nm and 785nm, peak wavelengths of fluorescence spectrum of membrane layer of Na2KSb antimony-alkali compound are measured as 898nm and 872nm and the corresponding transition energy levels are 1.42eV and 1.38eV respectively. Through the analysis of fluorescence spectrum of membrane layer of Na2KSb antimony-alkali compound, it is proved that photoluminescence is an effective tool for the research of membrane layer of Na2KSb antimony-alkali compound. Besides, further increasing the control precision of components of Na2KSb, the synthesis process, and the material structure, will further increase the sensitivity of Na2KSb multi-alkali photocathode, and consequently further improve the performance of devices.

Paper Details

Date Published: 18 August 2011
PDF: 5 pages
Proc. SPIE 8194, International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, 819406 (18 August 2011); doi: 10.1117/12.899743
Show Author Affiliations
Xiaofeng Li, North Night Vision Science and Technology Group Co., Ltd (China)
Fan Yu, Yunnan Univ. (China)
Kaijun Song, North Night Vision Science and Technology Group Co., Ltd (China)
Yaohong Qian, North Night Vision Science and Technology Group Co., Ltd (China)
Ji Tan, North Night Vision Science and Technology Group Co., Ltd (China)
Wenbo Yan, North Night Vision Science and Technology Group Co., Ltd (China)


Published in SPIE Proceedings Vol. 8194:
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications
Makoto Ikeda; Nanjian Wu; Guangjun Zhang; Kecong Ai, Editor(s)

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