STUDY ON THE MECHANISM OF VISIBLE ABSORPTION ENHANCEMENT FORN+IMPLANTEDTiO2BY RAMAN SPECTROSCOPY

Chun-Xiao Wang, Yan Chen, Yu-Zun Fan, Yan-Wen Zhang, Qi-Yu Liang, Yue-Dong Wu, Dong-Mei Li, Jin-Feng Jia, Qi-Kun Xue, Zi-Qiang Zhao (), Qing-Bo Meng and Shu-Lin Zhang
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Chun-Xiao Wang: School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China;
Yan Chen: School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
Yu-Zun Fan: Beijing National Laboratory for Condensed, Matter Physics, Institute of Physics, CAS, Beijing 100190, China
Yan-Wen Zhang: School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
Qi-Yu Liang: School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
Yue-Dong Wu: School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
Dong-Mei Li: Beijing National Laboratory for Condensed, Matter Physics, Institute of Physics, CAS, Beijing 100190, China
Jin-Feng Jia: State Key Laboratory of Low-Dimensional, Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
Qi-Kun Xue: State Key Laboratory of Low-Dimensional, Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
Zi-Qiang Zhao: School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
Qing-Bo Meng: Beijing National Laboratory for Condensed, Matter Physics, Institute of Physics, CAS, Beijing 100190, China
Shu-Lin Zhang: School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China;

Surface Review and Letters (SRL), 2011, vol. 18, issue 03n04, 135-140

Abstract: The photoabsorption edge shifting from UV to visible region accompanied with increased intensity and Raman features change was observed forN+implantedTiO2. Raman spectra prove the formation ofTiNxand oxygen vacancies in the implantedTiO2, which is considered as the origin of absorption edge shifting. The work may give a hint to increase the photocatalytic activity ofTiO2in the visible region at the molecule level.

Keywords: Raman spectroscopy; N+implantedTiO2; mechanism of visible absorption enhancement (search for similar items in EconPapers)
Date: 2011
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DOI: 10.1142/S0218625X11014576

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