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Characterisation of hydrogen ion implantation damage in quartz, lithium niobate and tellurium dioxide by Raman spectroscopy
Radiation Effects and Defects in Solids ( IF 1 ) Pub Date : 2021-03-15 , DOI: 10.1080/10420150.2021.1898390
Barrett J. Taylor 1 , Michael P. Bradley 1
Affiliation  

We report observations of the Raman spectra of 10 keV hydrogen ion-implanted crystalline quartz, lithium niobate and tellurium dioxide over a wide range of ion fluences (10141018 protons/cm2). We observe the emergence and growth of a new fluorescence feature in the Raman spectra (peaked at 1535 cm1) as a function of fluence in all three materials. When measured, the position and shape of this feature is nearly identical in each material. However, the appearance of this feature in tellurium dioxide has a slightly varied behaviour. Based on our observations, we suggest that this signal is due to the 557.7 nm photoluminescence of interstitial atomic O formed radiolytically. While interstitial molecular O2 has previously been observed in irradiated quartz, the presence of this atomic oxygen signature in proton-irradiated lithium niobate and tellurium dioxide has not been previously reported. Our results are important for the use of these materials, and other crystalline oxides, in charged particle (proton) radiation rich environments, such as those encountered by spaceborne instrumentation.



中文翻译:

用拉曼光谱表征石英、铌酸锂和二氧化碲中氢离子注入损伤

我们报告了对 10 keV 氢离子注入的晶体石英、铌酸锂和二氧化碲在很宽的离子注量范围内的拉曼光谱的观察结果。1014——1018 质子/厘米2)。我们观察到拉曼光谱中新荧光特征的出现和增长(峰值在 1535 cm-1) 作为所有三种材料的通量的函数。测量时,该特征的位置和形状在每种材料中几乎相同。然而,这种特征在二氧化碲中的表现略有不同。根据我们的观察,我们认为该信号是由于放射分解形成的间隙原子 O 的 557.7 nm 光致发光所致。虽然先前已在辐照石英中观察到间隙分子 O 2 ,但先前未报道过质子辐照的铌酸锂和二氧化碲中存在这种原子氧特征。我们的结果对于在富含带电粒子(质子)辐射的环境(例如星载仪器遇到的环境)中使用这些材料和其他结晶氧化物很重要。

更新日期:2021-03-15
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