Photophysical and photochemical study of laser-dye coumarin-481 and its photoproduct in solution

Bayrakceken F., Yaman A., Hayvali M.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, cilt.61, sa.5, ss.983-987, 2005 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 61 Sayı: 5
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.saa.2004.05.046
  • Dergi Adı: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.983-987
  • Anahtar Kelimeler: laser-dye, coumarin-481, photoproducts, fluorescence, absorption spectra, GRADE DYES, FLUORESCENCE, EMISSION
  • Ankara Üniversitesi Adresli: Evet

Özet

An ultraviolet light-induced photophysical and Photochemical changes of coumarm-481 in cyclohexane have been studied by photolysis technique at room temperature, due to its potential applications in photonics, photochemistry, and electronic spectroscopy. During the optical pumping, coumarin-481 showed photochemical changes, therefore as the concentration of coumarin-481 decreased, a photoproduct concentration increased rapidly. An absorption band of the product was observed at around 250 nm. Photoproduct emission spectra characteristics show that photoproduct molecules can also be used as a laser-dye at different emission frequency. (C) 2004 Elsevier B.V. All rights reserved.