Enhanced anomalous photo-absorption from TiO{sub 2} nanostructures

Solanki, Vanaraj; Majumder, Subrata; Mishra, Indrani; Varma, Shikha; Dash, P.; Singh, C.; Kanjilal, D.

doi:10.1063/1.4869550

Title: Enhanced anomalous photo-absorption from TiO{sub 2} nanostructures

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Abstract

Two dimensional nanostructures have been created on the rutile TiO{sub 2} (110) surfaces via ion irradiation technique. Enhanced anomalous photo- absorption response is displayed, where nanostructures of 15 nm diameter with 0.5 nm height, and not the smaller nanostructures with larger surface area, delineate highest absorbance. Comprehensive investigations of oxygen vacancy states, on ion- irradiated surfaces, display a remarkable result that the number of vacancies saturates for higher fluences. A competition between the number of vacancy sites on the nanostructure in conjunction with its size is responsible for the observed anomalous photo-absorption.

Authors:

Solanki, Vanaraj; Majumder, Subrata; Mishra, Indrani; Varma, Shikha ^[1]; Dash, P. ^[2]; Singh, C. ^[3]; Kanjilal, D. ^[4]

Institute of Physics, Bhubaneswar 751005 (India)
Utkal University, Bhubaneswar 751004 (India)
Department of Physics and Astrophysics, University of Delhi, Delhi 110007 (India)
Inter University Accelerator Center, New Delhi 110067 (India)

Publication Date:: Fri Mar 28 00:00:00 EDT 2014

OSTI Identifier:: 22271159

Resource Type:: Journal Article

Journal Name:: Journal of Applied Physics

Additional Journal Information:: Journal Volume: 115; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979

Country of Publication:: United States

Language:: English

Subject:: 77 NANOSCIENCE AND NANOTECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; ION BEAMS; IRRADIATION; NANOSTRUCTURES; OXYGEN; PHYSICAL RADIATION EFFECTS; SURFACE AREA; SURFACES; TITANIUM OXIDES; VACANCIES

Citation Formats


                    Solanki, Vanaraj, Majumder, Subrata, Mishra, Indrani, Varma, Shikha, Dash, P., Singh, C., and Kanjilal, D. Enhanced anomalous photo-absorption from TiO{sub 2} nanostructures.  United States: N. p., 2014. 
        Web.  doi:10.1063/1.4869550.

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                    Solanki, Vanaraj, Majumder, Subrata, Mishra, Indrani, Varma, Shikha, Dash, P., Singh, C., & Kanjilal, D. Enhanced anomalous photo-absorption from TiO{sub 2} nanostructures.  United States.  https://doi.org/10.1063/1.4869550

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                    Solanki, Vanaraj, Majumder, Subrata, Mishra, Indrani, Varma, Shikha, Dash, P., Singh, C., and Kanjilal, D. 2014.  
        "Enhanced anomalous photo-absorption from TiO{sub 2} nanostructures".  United States.  https://doi.org/10.1063/1.4869550.

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@article{osti_22271159,

  title        = {Enhanced anomalous photo-absorption from TiO{sub 2} nanostructures},

  author       = {Solanki, Vanaraj and Majumder, Subrata and Mishra, Indrani and Varma, Shikha and Dash, P. and Singh, C. and Kanjilal, D.},

  abstractNote = {Two dimensional nanostructures have been created on the rutile TiO{sub 2} (110) surfaces via ion irradiation technique. Enhanced anomalous photo- absorption response is displayed, where nanostructures of 15 nm diameter with 0.5 nm height, and not the smaller nanostructures with larger surface area, delineate highest absorbance. Comprehensive investigations of oxygen vacancy states, on ion- irradiated surfaces, display a remarkable result that the number of vacancies saturates for higher fluences. A competition between the number of vacancy sites on the nanostructure in conjunction with its size is responsible for the observed anomalous photo-absorption.},

  doi          = {10.1063/1.4869550},

  url          = {https://www.osti.gov/biblio/22271159},
  journal      = {Journal of Applied Physics},

  issn         = {0021-8979},

  number       = 12,

  volume       = 115,

  place        = {United States},

  year         = {Fri Mar 28 00:00:00 EDT 2014},

  month        = {Fri Mar 28 00:00:00 EDT 2014}

}

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