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Spectral and Non Radiative Decay Studies of Lead Di Bromide Single Crystals by Mode Matched Thermal Lens Technique

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Abstract

In the present paper, the investigations on the non radiative decay mechanism, optical band gap determination from absorption spectroscopic studies and fluorescence emission by photo luminescence techniques using different excitation wavelengths on gel derived lead di bromide single crystals are reported. Non radiative decay of the sample is studied using high sensitive dual beam mode matched thermal lens technique. For the thermal lensing experiment the crystal in solution phase is incorporated with rhodamine 6G dye for enhancing the absorption of the crystal sample. The thermal diffusivity of lead di bromide is determined using the probe beam intensity v/s time measurements.

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Acknowledgments

The authors acknowledge KSCSTE and Moulana Azad National Fellowship schemes for financial support.

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Authors and Affiliations

  1. International School of Photonics, Cochin University of Science and Technology, Cochin, Kerala, 682022, India

    I. Rejeena, B. Lillibai, V. P. N. Nampoori & P. Radhakrishnan

  2. M.S.M. College, Kayamkulam, Kerala, India

    I. Rejeena

  3. Christian College Chengannur, Kerala, India

    V. Thomas

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  1. I. Rejeena
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  2. B. Lillibai
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  3. V. Thomas
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  4. V. P. N. Nampoori
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  5. P. Radhakrishnan
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Correspondence to I. Rejeena.

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Rejeena, I., Lillibai, B., Thomas, V. et al. Spectral and Non Radiative Decay Studies of Lead Di Bromide Single Crystals by Mode Matched Thermal Lens Technique. J Fluoresc 26, 1161–1165 (2016). https://doi.org/10.1007/s10895-016-1819-y

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  • DOI: https://doi.org/10.1007/s10895-016-1819-y

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