Investigation of Up Conversion Emissions of Er3+/Yb3+ Codoped TeO2-B2O3-Nb2O5-ZnO-WO3-TiO2 Glass Systems for Optical Thermometry

Tülay Feyiz Caner, Işık Sümer, Anıl Doğan, Murat Erdem*, Kadir Esmer, Gönül Eryürek

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Özet

The conventional melt quenching technique was used to create Er3+/Yb3+ doped TeO2-B2O3-Nb2O5-ZnO-WO3-TiO2 glasses. The upconversion luminescence characteristics of the glasses were examined under 975 nm laser excitation at different powers. Luminescence intensities increased with increasing pump power until a certain power value was reached, at which point they declined. Lower pump power levels resulted in stronger green emissions, while higher pump power values resulted in stronger red emissions. The intensity-power curve was used to compute the number of transition photons. The calculations show that the 2H11/24I15/2 and 4S3/24I15/2 transitions are based the sequential absorption of two photons. With increased pump power, the (x, y) color coordinates shifted from green to red on the CIE diagram. The glasses’ temperature-dependent luminescence was obtained. The intensity ratio approach was used to calculate the temperature sensitivity of the glasses. Maximum absolute sensitivity was found to be 0.0032 K−1 at 560 K for the TeO2 based glass with 1.25

Orijinal dilİngilizce
Makale numarası076010
DergiECS Journal of Solid State Science and Technology
Hacim12
Basın numarası7
DOI'lar
Yayın durumuYayınlandı - Tem 2023

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Publisher Copyright:
© 2023 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited.

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