Vibronic Structures in Excitation and Emission Spectra Characteristics of O2- Molecular Ions in KI, KBr and KCl Crystals

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著者

    • Sarjono S. Sarjono S.
    • Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551, Japan
    • Baba M. Baba M.
    • Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551, Japan
    • Ohta K.
    • Department of Electrical and Electronic Engineering, Iwate University, Morioka 020-8551, Japan
    • Sokolska I.
    • Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-950 Wroclaw, Poland
    • Ryba-Romanowski W.
    • Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-950 Wroclaw, Poland

抄録

The excitation and emission spectra of O2- molecular ions in KI, KBr and KCl crystals have systematically been investigated at 8.7 K. The present results for the emission spectra with zero-phonon lines were in good agreement with previous results. From the temperature dependence of their emissions, we found that the luminescence intensities of O2- ions still appear at room temperature (RT) and are much stronger than those of other chalcogen molecular ions particularly in a KCl crystal. On the other hand, we found vibronic structures on the low-energy sides of the excitation spectra of KI and KBr:O2- crystals, showing several peaks with nearly equidistant spacings. The anharmonic vibrational energies of O2- molecular ions in the excited state were obtained from these energy differences, depending on their lattice constants. Using spectroscopic constants calculated from the experimental data, we could construct a configurational-coordinate diagram for an O2- center in a KI:O2- crystal.

収録刊行物

  • Japanese journal of applied physics. Pt. 1, Regular papers & short notes

    Japanese journal of applied physics. Pt. 1, Regular papers & short notes 43(6A), 3461-3465, 2004-06-15

    Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physics

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各種コード

  • NII論文ID(NAID)
    10013154820
  • NII書誌ID(NCID)
    AA10457675
  • 本文言語コード
    EN
  • 資料種別
    ART
  • 雑誌種別
    大学紀要
  • ISSN
    0021-4922
  • NDL 記事登録ID
    6975170
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A375
  • データ提供元
    CJP書誌  NDL  JSAP 
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