THE ELECTRONIC-STRUCTURE OF A RARE-EARTH LUMINESCENT CENTER IN ALKALINE-EARTH SULFIDES

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	THE ELECTRONIC-STRUCTURE OF A RARE-EARTH LUMINESCENT CENTER IN ALKALINE-EARTH SULFIDES
	QI, ZQ ; WEI, P ; CHUN, HM ; GUANG, HX ; Pan W(潘伟)
刊名	http://dx.doi.org/10.1088/0953-8984/1/31/003
	1989-08-07
英文摘要	The cluster method is used to investigate the electronic structure of rare-earth Eu2+- and Ce3+-doped SrS and CaS alkaline-earth sulphides in the local-density theory regime. The ground state is obtained self-consistently by the DV-X alpha method, while the transition state theory is used to calculate the excitation energy of the rare-earth luminescent centre. The calculated excitation energy corresponding to the 4f-5d transition of SrS:Eu is 3.19 eV, which is in agreement with the experimental data at 430 nm for the absorption peak in SrS:Eu. The compositions of the ground state and excited state are also calculated; this can give information about the electroluminescence excitation mechanism.
语种	英语
出版者	J PHYS-CONDENS MAT
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/91565]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	QI, ZQ,WEI, P,CHUN, HM,et al. THE ELECTRONIC-STRUCTURE OF A RARE-EARTH LUMINESCENT CENTER IN ALKALINE-EARTH SULFIDES[J]. http://dx.doi.org/10.1088/0953-8984/1/31/003,1989.
APA	QI, ZQ,WEI, P,CHUN, HM,GUANG, HX,&潘伟.(1989).THE ELECTRONIC-STRUCTURE OF A RARE-EARTH LUMINESCENT CENTER IN ALKALINE-EARTH SULFIDES.http://dx.doi.org/10.1088/0953-8984/1/31/003.
MLA	QI, ZQ,et al."THE ELECTRONIC-STRUCTURE OF A RARE-EARTH LUMINESCENT CENTER IN ALKALINE-EARTH SULFIDES".http://dx.doi.org/10.1088/0953-8984/1/31/003 (1989).