Optical Materials: X Pub Date : 2021-11-15 , DOI: 10.1016/j.omx.2021.100110 Y. Badour 1 , V. Jubera 1 , I. Andron 1 , C. Frayret 2, 3 , M. Gaudon 1
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Photochromism is a phenomenon describing the irradiation-induced reversible transformation of a chemical compound's colour between two states (dubbed as colour switch). This review makes an up-to-date account of inorganic photochromic compounds. In the first part, we summarise the photochromic mechanisms involving transition metal oxides, with an emphasis on the canonical WO3 large-bandgap semiconductor. In the second part, we discuss the potential contribution of rare earth elements to the widening of the colourimetric contrasts in absorption, as well as the method of modulation in emission.
中文翻译：
无机结晶化合物的光致变色
光致变色是一种现象，描述了化合物颜色在两种状态之间的辐射诱导可逆转变（称为颜色转换）。这篇综述对无机光致变色化合物进行了最新的介绍。在第一部分中，我们总结了涉及过渡金属氧化物的光致变色机制，重点介绍了规范的 WO 3大带隙半导体。在第二部分，我们讨论了稀土元素对扩大吸收色差的潜在贡献，以及发射调制的方法。
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