Improvement of optical properties of one-dimensional CaAl12O19:Mn4+ phosphor via Er3+- and Tb3+- doped bioactive glass powders

Oğuzlar S., Zeyrek Ongun M., Deliormanlı A. M.

Optical Materials, cilt.117, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 117
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.optmat.2021.111201
  • Dergi Adı: Optical Materials
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Computer & Applied Sciences, INSPEC
  • Anahtar Kelimeler: CaAl12O19:Mn4+ red phosphor, Bioactive glass, White LED, Photoluminescence, RED PHOSPHORS, LUMINESCENCE, EMISSION, MN4+
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

© 2021 Elsevier B.V.Until now, because of the being a candidate for the red-emitting material the CaAl12O19:Mn4+ phosphor (CAO:Mn) has been widely used especially in white light-emitting diodes (WLEDs). In this study, the emission-based luminescence properties of CaAl12O19:Mn4+ red phosphor synthesized via sol-gel method was studied in the absence and presence of Er3+- and Tb3+-doped 13–93 bioactive glass powders in ethyl cellulose (EC) matrix in detail. Upon the addition of un-doped and Er3+- and Tb3+- doped bioactive glass powders, the CAO:Mn phosphor resulted in 44%, 92% and 88% increase in the emission intensity, respectively. The luminescence and decay time characteristics of the synthesized phosphor were also investigated in terms of microsecond time scale. The proposed material may bring a new inside for the existing problems of the red phosphors regarding the brightness, colour correlation temperature and colour rendering index.