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Micro-Raman mapping of surface changes induced by XUV laser radiation in cadmium telluride.

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Title: Micro-Raman mapping of surface changes induced by XUV laser radiation in cadmium telluride.
Authors: Vozda, V.1,2 vozda@fzu.cz, Burian, T.2,3,4, Chalupský, J.2, Dědič, V.1, Hájková, V.2, Hlídek, P.1, Juha, L.2,3, Kozlová, M.2,3, Krůs, M.2,3, Kunc, J.1, Rejhon, M.1, Vyšín, L.2, Rocca, J.J.4, Franc, J.1
Source: Journal of Alloys & Compounds. Sep2018, Vol. 763, p662-669. 8p.
Subjects: Cadmium telluride, Ultraviolet lasers, Photoluminescence, Strains & stresses (Mechanics), Crystal structure
Abstract: A bulk sample of semi-insulating CdTe:In was exposed to single pulses of 21.2-nm radiation of Ne-like zinc plasma-based laser and 46.9-nm radiation of Ne-like argon capillary discharge laser. Irreversible changes induced by pure XUV laser radiation are studied and compared with action of continuous 532-nm high-power laser and IR pulses at 1320 nm. Modified surface is analyzed by optical and atomic force microscopy, micro-Raman imaging and low temperature photoluminescence. Noticeable amount of absorbed energy from the laser radiation is transferred into Te inclusions which are thermo-diffused and potentially evaporated from the surface layer surrounding the ablation imprint. Annealed CdTe lattice in these areas is detected via strong increase of Raman signal from longitudinal vibrations of the CdTe at 166 cm −1 , which are otherwise suppressed in pristine sample. Furthermore, detailed analysis of measured micro-Raman maps showed that peak at 121 cm −1 of elemental Te is blueshifted to 127 cm −1 due to compressive stress around Te inclusions in the CdTe matrix and is shifted back towards its unstressed position after application of the laser radiation. Low temperature photoluminescence measurements have shown that dislocations are generated in samples due to heating effects with IR radiation. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 131367882
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Micro-Raman mapping of surface changes induced by XUV laser radiation in cadmium telluride.
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  Data: <searchLink fieldCode="AR" term="%22Vozda%2C+V%2E%22">Vozda, V.</searchLink><relatesTo>1,2</relatesTo><i> vozda@fzu.cz</i><br /><searchLink fieldCode="AR" term="%22Burian%2C+T%2E%22">Burian, T.</searchLink><relatesTo>2,3,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Chalupský%2C+J%2E%22">Chalupský, J.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Dědič%2C+V%2E%22">Dědič, V.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hájková%2C+V%2E%22">Hájková, V.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hlídek%2C+P%2E%22">Hlídek, P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Juha%2C+L%2E%22">Juha, L.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Kozlová%2C+M%2E%22">Kozlová, M.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Krůs%2C+M%2E%22">Krůs, M.</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Kunc%2C+J%2E%22">Kunc, J.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rejhon%2C+M%2E%22">Rejhon, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Vyšín%2C+L%2E%22">Vyšín, L.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Rocca%2C+J%2EJ%2E%22">Rocca, J.J.</searchLink><relatesTo>4</relatesTo><br /><searchLink fieldCode="AR" term="%22Franc%2C+J%2E%22">Franc, J.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Sep2018, Vol. 763, p662-669. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Cadmium+telluride%22">Cadmium telluride</searchLink><br /><searchLink fieldCode="DE" term="%22Ultraviolet+lasers%22">Ultraviolet lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Photoluminescence%22">Photoluminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Crystal+structure%22">Crystal structure</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: A bulk sample of semi-insulating CdTe:In was exposed to single pulses of 21.2-nm radiation of Ne-like zinc plasma-based laser and 46.9-nm radiation of Ne-like argon capillary discharge laser. Irreversible changes induced by pure XUV laser radiation are studied and compared with action of continuous 532-nm high-power laser and IR pulses at 1320 nm. Modified surface is analyzed by optical and atomic force microscopy, micro-Raman imaging and low temperature photoluminescence. Noticeable amount of absorbed energy from the laser radiation is transferred into Te inclusions which are thermo-diffused and potentially evaporated from the surface layer surrounding the ablation imprint. Annealed CdTe lattice in these areas is detected via strong increase of Raman signal from longitudinal vibrations of the CdTe at 166 cm −1 , which are otherwise suppressed in pristine sample. Furthermore, detailed analysis of measured micro-Raman maps showed that peak at 121 cm −1 of elemental Te is blueshifted to 127 cm −1 due to compressive stress around Te inclusions in the CdTe matrix and is shifted back towards its unstressed position after application of the laser radiation. Low temperature photoluminescence measurements have shown that dislocations are generated in samples due to heating effects with IR radiation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.jallcom.2018.05.332
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 662
    Subjects:
      – SubjectFull: Cadmium telluride
        Type: general
      – SubjectFull: Ultraviolet lasers
        Type: general
      – SubjectFull: Photoluminescence
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      – SubjectFull: Strains & stresses (Mechanics)
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      – SubjectFull: Crystal structure
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      – TitleFull: Micro-Raman mapping of surface changes induced by XUV laser radiation in cadmium telluride.
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              Text: Sep2018
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