Sb掺杂的CaZnOS层状半导体中的宽带多模发射

Broadband multimodal emission in Sb-doped CaZnOS-layered semiconductors

力致发光(ML)智能材料由于其独特的机械能-光能转换特性,有望用于应力传感器、新型显示和先进的柔性光电器件.然而,单一材料的窄波长范围ML发射特性限制了它们的应用范围.在这项工作中,我们报道了Sb掺杂的Ca Zn OS层状半导体中的宽带多模态发射.使用高温固相法合成了一系列具有不同Sb^(3+)掺杂浓度的Ca Zn OS层状结构粉末.Ca Zn OS:Sb^(3+)荧光粉实现了400–900 nm ML的宽谱发光范围,可调光致发光,两个发射峰位于465和620 nm,我们还系统研究了X射线诱导发光特性.我们还实现了Sb^(3+)和Bi^(3+)共掺杂样品的超宽暖白光ML发射.因此,这些ML荧光粉将有望用于智能照明、显示、可见应力传感器以及X射线成像和检测.

Mechanoluminescent(ML) smart materials are expected to be used in stress sensors, new displays, and advanced flexible optoelectronic devices, because of their unique mechanical-to-light energy conversion properties. However,the narrow-range ML emission characteristics of single materials limit their application scope. In this work, we report on the broadband multimodal emission in Sb-doped Ca Zn OS layered semiconductors. A series of Ca Zn OS layer-structured powders with different Sb^(3+) doping concentrations were synthesised using a high-temperature solid-phase method. The Ca Zn OS:Sb^(3+) phosphor achieved a wide range of ML spectra(400–900 nm), adjustable photoluminescence with double luminescent peaks located at 465 and 620 nm, and the X-rayinduced luminescence characteristics were systematically studied. We have also achieved ultra-broad warm white light ML emission of Sb^(3+) and Bi^(3+) co-doped samples. Therefore, it can be expected that these ML phosphors will be used in smart lighting, displays, visible stress sensors, and X-ray imaging and detections.