Synthesis and Characterization of Oxygen Doped ZnTe for Powder Phosphor Application | Zendy

Zhitao Kang | Zendy; Hisham Menkara | Zendy; B. K. Wagner | Zendy; Christopher J. Summers | Zendy; V. Valdna | Zendy

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Synthesis and Characterization of Oxygen Doped ZnTe for Powder Phosphor Application

Author(s) -

Zhitao Kang,

Hisham Menkara,

B. K. Wagner,

Christopher J. Summers,

V. Valdna

Publication year - 2005

Publication title -

journal of materials research/pratt's guide to venture capital sources

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.788

H-Index - 148

eISSN - 0884-2914

pISSN - 0884-1616

DOI - 10.1557/jmr.2005.0299

Subject(s) - phosphor , cathodoluminescence , materials science , x ray photoelectron spectroscopy , photoluminescence , doping , luminescence , powder diffraction , analytical chemistry (journal) , chemical engineering , optoelectronics , crystallography , chemistry , chromatography , engineering

The synthesis of efficient ZnTe powder phosphors is very difficult due to its high moisture sensitivity and chemical instability during processing. In this study, an efficient ZnTe:O powder phosphor for x-ray imaging application was successfully synthesized by vacuum firing ZnTe powder prepared from ZnTe bulk crystals ball-milled in an O2 atmosphere. The phosphors were characterized by x-ray diffraction, x-ray photoelectron spectroscopy, photoluminescence, and cathodoluminescence (CL) measurements and found to exhibit a luminescent efficiency three times that of ZnTe:O prepared by ZnO doping. The ZnTe:O samples exhibited a deep red emission centered at 680 nm and a CL decay time of 1.1s.

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