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首页> 外文期刊>Optical Materials >Structural, optical, thermal, mechanical, morphological & radiation shielding parameters of Pr~(3+) doped ZA1FB glass systems
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Structural, optical, thermal, mechanical, morphological & radiation shielding parameters of Pr~(3+) doped ZA1FB glass systems

机译：Pr〜（3+）掺杂ZA1FB玻璃系统的结构，光学，热，机械，形态和辐射屏蔽参数

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Authors have investigated a series of newly developed Pr3+ doped 10ZnF(2) - (5-y) Al-2 O-3-30LiF - 55B(2)O(3) - yPr(6)O(11) (y = 0-0.5 mol %) glasses synthesized through melt quench technique with an objective to analyse its optical, structural, thermal, morphological, mechanical and radiation shielding capabilities. The structural evolution was systematically investigated by density, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR) and Energy dispersive analysis (EDAX). The overlaid absorbance (H-3(4) -> D-1(2)) and emission (D-1(2) -> H-3(4)) bands of 0.05 mol% of Pr3+-doped ZAlFB glass indicated the cross-relaxation channel for energy transfer between Rare-Earth (RE) ions. The ZAlFB:Pr3+ glasses excited at 445 nm exhibited intense reddish orange emission with D-1(2) -> H-3(4) transition at 605 nm. This proves its suitability in reddish orange LEDs. Luminescence quenching was observed past 0.05 mol% of Pr3+ concentration in ZAlFB glass. The D-1(2) -> H-3(4) transition exhibited maximum branching ratio (beta(r) = 0.8601) in Pr0.5 glass. All the Pr3+ doped glasses revealed strong thermal stability with Delta T > 100 degrees C. Pr0.5 glass sample showed maximum thermal strength and mechanical hardness (Vicker's Microhardness tester). Hence, compromise over the hardness or the optical properties of the samples were studied in the ZAlFB:Pr3+ glasses. Radiation shielding properties indicated 0.5 mol% Pr3+ doped sample as a superior gamma rays shielder among the investigated ZnF2-Al2O3-LiF-B2O3-Pr6O11 glass system with favourable luminescent and radiation shielding properties, these Pr3+ doped ZAlFB glasses can be used as photonic/lasing devices in radiation zones as well.
机译：作者研究了一系列新开发的掺杂Pr3 +的10ZnF（2）-（5-y）Al-2 O-3-30LiF-55B（2）O（3）-yPr（6）O（11）（y = 0 -0.5 mol％）玻璃通过熔融淬火技术合成，目的是分析其光学，结构，热，形态，机械和辐射屏蔽能力。通过密度，X射线衍射（XRD），傅立叶变换红外光谱（FTIR）和能量色散分析（EDAX）系统地研究了结构演变。掺有Pr3 +的ZAlFB玻璃的0.05 mol％的吸光度（H-3（4）-> D-1（2））和发射（D-1（2）-> H-3（4））谱带表明跨松弛通道，用于稀土离子之间的能量转移。在445 nm激发的ZAlFB：Pr3 +玻璃表现出强烈的红橙色发射，在605 nm处出现D-1（2）-> H-3（4）跃迁。这证明了其适用于红橙色LED。在ZAlFB玻璃中，当Pr3 +浓度超过0.05 mol％时，观察到发光淬灭。在Pr0.5玻璃中，D-1（2）→H-3（4）跃迁表现出最大的分支比（β（r）= 0.8601）。所有掺有Pr3 +的玻璃均表现出很强的热稳定性，ΔT> 100摄氏度。Pr0.5玻璃样品显示出最大的热强度和机械硬度（维氏显微硬度计）。因此，在ZAlFB：Pr3 +玻璃中研究了样品硬度或光学性能的折衷。辐射屏蔽性能表明，在研究的ZnF2-Al2O3-LiF-B2O3-Pr6O11玻璃系统中，掺有0.5 mol％Pr3 +的样品是优良的伽马射线屏蔽剂，具有良好的发光和辐射屏蔽性能，这些Pr3 +掺杂的ZAlFB玻璃可用作光子/激光辐射区域中的设备。

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