SrS:Ce,Mn,Cl — a novel efficient EL phosphor

SrS:Ce,Cl based thin film electroluminescent devices codoped with Mn were investigated. The EL performance is remarkably improved compared to conventional SrS:Ce,Cl. A luminous efficiency exceeding 1.6 lm/W was achieved. The positive impact of Mn codoping on the crystalline quality of thin films was...

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Bibliographic Details
Published in:	Journal of crystal growth Vol. 159; no. 1-4; pp. 943 - 946
Main Authors:	Hüttl, B., Velthaus, K.O., Troppenz, U., Herrmann, R., Mauch, R.H.
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Amsterdam Elsevier B.V 01-02-1996 Elsevier
Subjects:	Applied sciences Condensed matter: electronic structure, electrical, magnetic, and optical properties Electroluminescence Electronics Exact sciences and technology Light-emitting devices Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optoelectronic devices Other luminescence and radiative recombination Physics Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Strontium sulfides Chlorine additions Thin film device Inorganic compounds Electroluminescent device Photoluminescence Cerium additions Manganese additions Electroluminescence Experimental study Energy transfer Codoping
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Summary:	SrS:Ce,Cl based thin film electroluminescent devices codoped with Mn were investigated. The EL performance is remarkably improved compared to conventional SrS:Ce,Cl. A luminous efficiency exceeding 1.6 lm/W was achieved. The positive impact of Mn codoping on the crystalline quality of thin films was found to be responsible for the improvements. However, an energy transfer between Ce3+Mn2+, which reduces the radiation efficiency of the Ce3+ emission was detected.
ISSN:	0022-0248 1873-5002
DOI:	10.1016/0022-0248(95)00780-6