Temperature-dependent Photodegradation in UV-resonance Raman Spectroscopy

• YOSHINO Hikaru

  Department of Applied Physics, Osaka University

• SAITO Yuika

  Department of Applied Physics, Osaka University

• KUMAMOTO Yasuaki

  Near-field Nanophotonics Research Team, RIKEN

• TAGUCHI Atushi

  Department of Applied Physics, Osaka University

• VERMA Prabhat

  Department of Applied Physics, Osaka University

• KAWATA Satoshi

  Department of Applied Physics, Osaka University

Abstract

Temperature-dependent photodegradation during UV-resonance Raman spectroscopy was investigated. Photodegradation was quantitatively probed by monitoring the temporal evolution of UV-resonance Raman spectra obtained from bacteriochlorophyll (BChl) showing, resonance effect at a 355-nm excitation wavelength. At 80 K, the molecular photodecomposition rate was 5-times lower than that at room temperature. The decomposition rates of BChl were analyzed by the Arrhenius formula, indicating that the mechanism of photodegradation　includes a thermal process having an activation energy of 1.4 kJ/mol.

Journal

• Analytical Sciences

  Analytical Sciences 31 (5), 451-454, 2015

  The Japan Society for Analytical Chemistry

Keywords

• UV-resonance Raman spectroscopy
• photodegradation
• Arrhenius formula
• photothermal effect

Details

• CRID: 1390001204260223104
• NII Article ID: 130005067341
• NII Book ID: AA10500785
• DOI: 10.2116/analsci.31.451
• ISSN: 13482246
• ISSN: 09106340
• NDL BIB ID: 026378946
• PubMed: 25958876
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026378946
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.31.451.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.31.451/fulltext.html
• Web Site: https://www.jstage.jst.go.jp/article/analsci/31/5/31_451/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed