Study on Luminescence Properties and Crystal-Lattice Environment of Eu2+ in Sr4-xMgxSi3O8Cl4∶Eu2+ Phosphor
来源期刊：JOURNAL OF RARE EARTHS2004年第3期
论文作者：杜海燕 孙家跃 夏志国
Key words：luminescence; chlorosilicate; spectra; crystal-lattice environment; rare earths;
Abstract: According to the Van Uitert experimental equation, crystal-lattice environment of Eu2+ in the Sr4Si3O8Cl4 crystal was discussed. By adding Mg2+ to the host lattice, Sr4-xMgxSi3O8Cl4∶Eu2+ was synthesized and the emission peak shifted from blue-green (488 nm) to blue-violet (411 nm) with the increase of amount of the magnesium which replaced the strontium. By analyzing the spectra of Sr4-xMgxSi3O8Cl4∶Eu2+ the two Eu2+ emission centers were found because of the change of crystal-lattice environment in the host and the crystal structure was obtained by X-ray diffraction data.
杜海燕1，孙家跃1，夏志国1
(1.College of Chemical and Environmental Engineering, Beijing Technology and Business University, Beijing 100037, China)
Abstract:According to the Van Uitert experimental equation, crystal-lattice environment of Eu2+ in the Sr4Si3O8Cl4 crystal was discussed. By adding Mg2+ to the host lattice, Sr4-xMgxSi3O8Cl4∶Eu2+ was synthesized and the emission peak shifted from blue-green (488 nm) to blue-violet (411 nm) with the increase of amount of the magnesium which replaced the strontium. By analyzing the spectra of Sr4-xMgxSi3O8Cl4∶Eu2+ the two Eu2+ emission centers were found because of the change of crystal-lattice environment in the host and the crystal structure was obtained by X-ray diffraction data.
Key words:luminescence; chlorosilicate; spectra; crystal-lattice environment; rare earths;
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