TY - JOUR

T1 - CdWO4 Crystal: Thermal Expansion Coefficients, High-Temperature Photoluminescence

AU - Ryadun, A. A.

AU - Elisseyev, A. P.

AU - Kuznetsov, A. B.

AU - Musikhin, A. E.

AU - Grigorieva, V. D.

N1 - Ryadun, A.A., Elisseyev, A.P., Kuznetsov, A.B. et al. CdWO4 Crystal: Thermal Expansion Coefficients, High-Temperature Photoluminescence. J Struct Chem 66, 757–765 (2025). https://doi.org/10.1134/S0022476625040110 This work was funded by the Russian Science Foundation (project No. 23-79-00070).

PY - 2025/4

Y1 - 2025/4

N2 - High-temperature properties of the CdWO4 cadmium tungstate crystal are studied. This crystal has broad practical applications, e.g. as a scintillator, due to its optical and radiative properties. CdWO4 preserves high structural stability up to 1150 °C and begins to decompose at 1200 °C. Crystal lattice parameters and thermal expansion coefficients are calculated. The latter exhibit the largest expansion along the b axis. High transmittance of the studied sample in the ~0.32-5.0 µm range confirms high optical quality of the crystal and its prospects in photonic applications. The photoluminescence study in the 23-200 °C range reveals two types of luminescence transitions E1 and E2 and shows that the intensity of the spectrum decreases with increasing temperature and vanishes at 200 °C. It is shown that the tendency of intensity decrease depends on the excitation wavelength.

AB - High-temperature properties of the CdWO4 cadmium tungstate crystal are studied. This crystal has broad practical applications, e.g. as a scintillator, due to its optical and radiative properties. CdWO4 preserves high structural stability up to 1150 °C and begins to decompose at 1200 °C. Crystal lattice parameters and thermal expansion coefficients are calculated. The latter exhibit the largest expansion along the b axis. High transmittance of the studied sample in the ~0.32-5.0 µm range confirms high optical quality of the crystal and its prospects in photonic applications. The photoluminescence study in the 23-200 °C range reveals two types of luminescence transitions E1 and E2 and shows that the intensity of the spectrum decreases with increasing temperature and vanishes at 200 °C. It is shown that the tendency of intensity decrease depends on the excitation wavelength.

KW - LTG CZ

KW - CdWO4

KW - thermal expansion

KW - high-temperature luminescence

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:001615188600011

UR - https://www.mendeley.com/catalogue/80afd1bf-6ed3-3320-9e59-92071ab31950/

U2 - 10.1134/s0022476625040110

DO - 10.1134/s0022476625040110

M3 - Article

VL - 66

SP - 757

EP - 765

JO - Journal of Structural Chemistry

JF - Journal of Structural Chemistry

SN - 0022-4766

IS - 4

ER -