Publication detail

Analysis of optical properties of Al2O3:Cr3+ polycrystalline transparent red light emmiting ceramics

KLEMENT, R. DRDLÍKOVÁ, K. DRDLÍK, D. MACA, K. GALUSEK, D.

Original Title

Analysis of optical properties of Al2O3:Cr3+ polycrystalline transparent red light emmiting ceramics

Type

article in a collection out of WoS and Scopus

Language

English

Original Abstract

Transparent Cr3+-doped alumina ceramics was prepared by slip casting, followed by pre-sintering in ambient atmosphere and hot isostatic pressing. The effect of dopant concentration on optical (transmission and photoluminescence-PL) properties was studied. Two approaches were used for treatment and comparison of the transmission data, one based on simple total background correction and other based on Rayleigh-Gans-Debye approximation that includes birefringent grain scattering effect. The PL spectra of studied samples exhibit intensive deep red narrow emissions under violet/green light excitation, R-lines (2Eg4A2g transition), observed at 692.5 and 693.8 nm, that are very close to ruby single crystal. The highest emission was achieved at the Cr3+ concentration of 0.4 at. %. The luminescence decay curves exhibit single-exponential behaviour with decay times of 3.6 ms.

Keywords

Cr3+-doped Al2O3; transparent polycrystalline ceramics; optical properties; luminescence

Authors

KLEMENT, R.; DRDLÍKOVÁ, K.; DRDLÍK, D.; MACA, K.; GALUSEK, D.

Released

20. 11. 2019

Publisher

Institute of Inorganic Chemistry, SAS

Location

Bratislava

ISBN

978-80-971648-8-1

Book

Processing and properties of advanced ceramics and glasses

Edition number

1

Pages from

101

Pages to

111

Pages count

11

BibTex

@inproceedings{BUT166181,
  author="Róbert {Klement} and Katarina {Drdlíková} and Daniel {Drdlík} and Karel {Maca} and Dušan {Galusek}",
  title="Analysis of optical properties of Al2O3:Cr3+ polycrystalline transparent red light emmiting ceramics",
  booktitle="Processing and properties of advanced ceramics and glasses",
  year="2019",
  number="1",
  pages="101--111",
  publisher="Institute of Inorganic Chemistry, SAS",
  address="Bratislava",
  isbn="978-80-971648-8-1"
}