【摘要】 单晶YSZ(ytttia stabilizedcubiczirconia)在注入能量为200keV的Xe+离子后由无色透明变成紫色透明,吸收光谱测试表明,当注量达到1×1016cm-2时,开始出现吸收峰,并且吸收强度随注量增加而增大。对注量为1×1016cm-2和1×1017cm-2的样品,吸收带峰值分别位于522nm和497nm。吸收带可能与氧空位捕获电子形成的F型色心和氧离子捕获空位形成的V型色心有关。注入注量为1×1016cm-2样品的荧光测试表明,荧光光谱均为400～600nm范围内的宽发射带。注入注量为1×1017cm-2的样品没有荧光现象产生,可能是由于辐照损伤严重,缺陷浓度增大所致。更多还原

【Abstract】 A transparent yttriastabilized zirconia (YSZ) single crystal becomes colored after 200keV Xe+implantation. Optical absorption measurements show that the intensity increases with the dose, and a broad absorption band was observed at a dose of 1×1016cm-2. For the 1×1016 and 1×1017 cm-2 Xe+implantation crystals, the absorption bands were centered at 522nm and 497nm, respectively. The bands were associated with electrons trapped at oxygen vacancies (Ftype center) and with oxygen ions with trapped holes (Vtype center). Luminescence experiments of an implanted crystal with a dose of 1×1016cm-2 show that fluorescence spectra under the different excitation wavelength were all broad emission band ranged from 400～600nm. An implanted crystal with a dose of 1×1017cm-2 has no luminescence, and it was due to the heavily damage and increasing defect concentration probably.更多还原