The UV-induced photocoloration of cubic zirconia (c-ZrO₂) stabilized by Y₂O₃, Yb₂O₃ and Er₂O₃ and treated as a wide bandgap metal oxide (MO₂) heavily doped with M³⁺ ions has been examined by diffuse reflectance spectroscopy. Using the narrow f-f absorption bands of optically labeled Yb³⁺ and Er³⁺ as the M³⁺ dopants, the interaction of these dopant ions with photocarriers is demonstrated spectroscopically against a non-resolved broadband background. The latter occurs as a result of an offset of specific f-f absorption bands following conversion of M³⁺ ions into optically silent M²⁺ ions by the trapping of photoelectrons or by a change of the local symmetry of the M³⁺ surroundings caused by the UV-induced formation of color centers.

UV诱导的Y ₂ O ₃，Yb ₂ O ₃和Er ₂ O ₃稳定的立方氧化锆（c-ZrO ₂）的光致变色，并被视为重掺杂M ³⁺离子的宽带隙金属氧化物（MO ₂）通过漫反射光谱法检查。使用光学标记的Yb ³⁺和Er ³⁺的窄f - f吸收带作为M ³⁺掺杂物，这些掺杂物离子与光载流子的相互作用在未解析的宽带背景下通过光谱证明。后者发生作为一个特定的偏移的结果˚F - ˚F以下M的转换吸收带³⁺离子进入光学无声中号²⁺通过光电子的俘获或由M的局部对称性的变化离子³⁺引起的周围由紫外线引起的色心形成。