THE ULTRAVIOLET UP-CONVERSION LUMINESCENCE OF NONCRYSTALLINE ErP5O14
CHEN XIAO-BO (陈晓波)a, ZHANG GUANG-YIN (张光寅)a, CHEN JIN-KAI (陈金铠)b, WANG HONG (王虹)c, LIU YAN-BIN (刘言滨)d, SHANG MEI-RU (商美茹)a, LI JIANG-WEI (李江卫)e
a Department of Physics, Nankai University, Tianjin 300071, China; b Experiment Center, Fujian Normal University, Fuzhou 350007, China; c Department of Physics, Tianjin Education College, Tianjin 300020, China; d Research Institute of Artificial Crystal, Beijing 100018, China; e Nankai University Press, Tianjin 300071, China
Abstract This paper reports the observation of the ultraviolet up-conversion lumines-cence phenomenon of noncrystalline ErP5O14 excited by pulse 532nm laser. The up-conversion mechanism is explained as follows, namely, when noncrystalline ErP5O14 is excited by 532nm laser, the excited population is mainly deposited in 4S3/2 level because of the strong nonradiative relaxation between 2H11/2 and 4S3/2 level, then up-converted to (2H2G)9/2 level by energy transfer between Er3+ ions, this produces the ultraviolet luminescence.
Received: 31 August 1992
Accepted manuscript online:
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