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The effect of cesium metal clusters on the optical properties of cesium iodide thin films

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Abstract

Cesium metal clusters strongly affect the optical properties of cesium iodide thin films. The metal clusters are formed during film formation by thermal evaporation. The cesium cluster of 30–40 nm in the matrix of cesium iodide insulating thin films results in Surface Plasmon Resonance (SPR). The peak position of these SPR peaks showed a red shift. This was shown to be due to changes in the dielectric constant of CsI resulting from the strains in the films caused by the metal clusters themselves.

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Authors and Affiliations

  1. Department of Physics & Electronics, S.G.T.B. Khalsa College, University of Delhi, Delhi, 110007, India

    Kuldeep Kumar & P. Arun

  2. Department of Applied Sciences, Indira Gandhi Institute of Technology, Guru Gobind Singh Indraprastha University, Delhi, 110006, India

    Chhaya Ravi Kant

  3. University Science & Instrumentation Center, University of Delhi, Delhi, 110007, India

    N. C. Mehra

  4. Postgraduate and Research Department of Physics, St. Thomas College, Palai, Kerala, 686574, India

    Vincent Mathew

Authors
  1. Kuldeep Kumar
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  2. P. Arun
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  3. Chhaya Ravi Kant
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  4. N. C. Mehra
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  5. Vincent Mathew
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Correspondence to P. Arun.

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Kumar, K., Arun, P., Kant, C.R. et al. The effect of cesium metal clusters on the optical properties of cesium iodide thin films. Appl. Phys. A 99, 305–310 (2010). https://doi.org/10.1007/s00339-009-5532-4

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  • DOI: https://doi.org/10.1007/s00339-009-5532-4

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