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High-Pressure Synthesis of Corundum-Type Ga2O3:Cr3+ and Application of Its Fluorescence to the Pressure Scale
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2024-01-22 , DOI: 10.1021/acs.inorgchem.3c04028
Hitoshi Yusa 1 , Masashi Miyakawa 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2024-01-22 , DOI: 10.1021/acs.inorgchem.3c04028
Hitoshi Yusa 1 , Masashi Miyakawa 1
Affiliation
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Cr3+-doped Ga2O3 crystals with a corundum structure were synthesized at high temperature and high pressure, and their excitation as well as fluorescence properties were evaluated. The crystals were green under white light illumination but deep red when exposed to ultraviolet light. This can mainly be attributed to R1 and R2 fluorescence spectra caused by the Cr3+ transition. The pressure-dependence of their fluorescence spectra is comparable with ruby (Al2O3:Cr3+), which is currently often used as a pressure scale. The excitation spectrum was shifted to the long-wavelength side compared with ruby, which enabled excitation with long-wavelength lasers, even if the pressure effect is considered. In addition, the R1 and R2 peaks were well-separated with increasing pressure, which might have advantages over the ruby scale.
中文翻译：
刚玉型Ga2O3:Cr3+的高压合成及其荧光在压力尺度上的应用
在高温高压下合成了刚玉结构的Cr 3+掺杂Ga 2 O 3晶体，并对其激发和荧光性能进行了评价。这些晶体在白光照射下呈绿色，但在紫外线照射下呈深红色。这主要归因于Cr 3+跃迁引起的R 1和R 2荧光光谱。其荧光光谱的压力依赖性与目前常用作压力标尺的红宝石 (Al 2 O 3 :Cr 3+ ) 相当。与红宝石相比，激发光谱向长波长侧移动，即使考虑压力效应，也可以用长波长激光进行激发。此外，随着压力的增加， R 1和R 2峰可以很好地分离，这可能比红宝石标度具有优势。
更新日期：2024-01-22
中文翻译：
刚玉型Ga2O3:Cr3+的高压合成及其荧光在压力尺度上的应用
在高温高压下合成了刚玉结构的Cr 3+掺杂Ga 2 O 3晶体，并对其激发和荧光性能进行了评价。这些晶体在白光照射下呈绿色，但在紫外线照射下呈深红色。这主要归因于Cr 3+跃迁引起的R 1和R 2荧光光谱。其荧光光谱的压力依赖性与目前常用作压力标尺的红宝石 (Al 2 O 3 :Cr 3+ ) 相当。与红宝石相比，激发光谱向长波长侧移动，即使考虑压力效应，也可以用长波长激光进行激发。此外，随着压力的增加， R 1和R 2峰可以很好地分离，这可能比红宝石标度具有优势。
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