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Effects of Pre-anneal Treatment on the Optical Characteristics of Lead Tungstate Single Crystal by Do-Hyung Kim; Hee-Sun Yang; Kyung-Dong Chang; Hyo-Yeol Park; Myoung-Bok Lee; Jin-Ho Lee; Yoon-Ho Song; Young-Rae Cho; Sang-Yun Lee is a Engineering article available to read on EtoBox.
What is Effects of Pre-anneal Treatment on the Optical Characteristics of Lead Tungstate Single Crystal about?
We present the pre-annealing growth condition dependence of the optical properties of lead tungstate PbWO 4 (shortly, PWO) single crystal. The colors of PWO crystals were influenced by the pre-annealing time before melting of initial powder. The oxygen vacancy of PWO single crystal constituents is suggested to be mainly responsible for the yellowish coloration that is related to the absorption band around 430 nm. The ratio of lead and oxygen vacancy might also affect the PWO coloration. PbWO 4 single crystals grown by the different growth conditions have shown a slight different lattice parameter confirmed by X-ray diffraction method (XRD). Photoluminescence (PL) intensities of the yellowish PWO were weaker than the colorless one. It is assumed that there are different main trap levels related to the yellowish PWO single crystal compared to colorless ones through thermoluminescence (TL) measurements.
Who reads Effects of Pre-anneal Treatment on the Optical Characteristics of Lead Tungstate Single Crystal?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Do-Hyung Kim; Hee-Sun Yang; Kyung-Dong Chang; Hyo-Yeol Park; Myoung-Bok Lee; Jin-Ho Lee; Yoon-Ho Song; Young-Rae Cho; Sang-Yun Lee
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-0248)
- Published
- 2001
- Language
- EN
- Field
- Engineering (Physical Sciences)