F
Farida Selim
Researcher at Bowling Green State University
Publications - 116
Citations - 2353
Farida Selim is an academic researcher from Bowling Green State University. The author has contributed to research in topics: Positron & Positron annihilation spectroscopy. The author has an hindex of 23, co-authored 109 publications receiving 1736 citations. Previous affiliations of Farida Selim include Lawrence Livermore National Laboratory & Washington State University.
Papers
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Nature of native defects in ZnO.
TL;DR: This study revealed the nature of native defects and their roles in ZnO through positron annihilation and optical transmission measurements and revealed oxygen vacancies are the origin for the shift in the optical absorption band that causes the red or orange coloration.
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Persistent Photoconductivity in Strontium Titanate
TL;DR: From positron lifetime measurements, the persistent photoconductivity was observed in strontium titanate (SrTiO(3)) single crystals is attributed to the excitation of an electron from a titanium vacancy defect into the conduction band, with a very low recapture rate.
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Protected-annealing regulated defects to improve optical properties and luminescence performance of Ce:YAG transparent ceramics for white LEDs
Sun Bingheng,Le Zhang,Le Zhang,Le Zhang,Tianyuan Zhou,Tianyuan Zhou,Shao Cen,Lei Zhang,Yuelong Ma,Yuelong Ma,Qing Yao,Qing Yao,Zhigang Jiang,Zhigang Jiang,Farida Selim,Hao Chen +15 more
TL;DR: In this article, vacuum as-sintered high quality Ce:YAG ceramics were subjected to various annealing conditions, and their microstructural evolution, and optical and luminescence properties were monitored and studied systematically.
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Identification of defects in Y3Al5O12 crystals by positron annihilation spectroscopy
TL;DR: Positron annihilation, thermoluminescence, and optical absorption measurements were applied with the aid of several annealing and diffusion procedures to investigate the nature of point defects in Y3Al5O12 (YAG) single crystals as mentioned in this paper.
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Positron annihilation spectroscopy of defects in nuclear and irradiated materials- a review
TL;DR: Positron annihilation spectroscopy (PAS) is the only probe that can detect individual atomic vacancies and small and large vacancy clusters induced by irradiation with remarkable sensitivity, providing information about their size, concentration, and chemical environment as discussed by the authors.