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Start Over Author "Zhao, Hengyu" Journal journal of luminescence
7 results on '"Zhao, Hengyu"'

7. Spectroscopic properties of OH− doped and Bi-rich Bi4Ge3O12 crystals by vertical Bridgman method

Author

Yu, Pingsheng, Su, Liangbi, Zhao, Hengyu, Guo, Xin, Li, Hongjun, Yang, Qiuhong, and Xu, Jun

Subjects
*EMISSION spectroscopy, *X-ray diffraction, *ANNEALING of crystals, *DIODES, *ALCOHOL, *DOPED semiconductors, *TEMPERATURE, *BISMUTH compounds
Abstract

Abstract: OH− doped and Bi-rich Bi4Ge3O12 (BGO) single crystals were grown by Vertical Bridgman (VB) method. The structure of these crystals was determined by XRD, and the emission spectra in visible and near infrared region (NIR) were measured at room temperature. The emission spectrum of Bi-rich BGO has extra peaks at 385, 367 and 357nm, Bi-rich BGO after annealing in Ar at 500°C for 5h shows a significant emission band peaking around 1170nm under 808nm laser diodes (LDs) excitation, and OH− doped BGO shows a noticeable emission band centered at about 1346nm under 980nm LDs excitation. A brief discussion is presented. [Copyright &y& Elsevier]

Published
2011
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