在此基础上,设计并制备了Cs3Cu2Br5/n-Ga N异质结光电探测器.该异质结器件在270 nm和360 nm的紫外区域表现出两个明显的响应峰,响应度分别为5.16 m A/W和3.45 m A/W,对应的探测率分别为5.29×1011Jones和3.35×1011Jones.此外,器件还表现出良好的稳定性和可重复性.2.单源真空热蒸发技术制备Cs3Cu2Br5...
Br5单晶.研究了Cs3 Cu2 Br5的光学吸收,光致激发和发射,时间分辨光致发光和以及X射线探测性能.Cs3 Cu2 Br5晶体结构为正交晶系,空间群为Pnma.在X射线激发下,Cs3 Cu2 Br5晶体具有峰值约为467 nm的宽带发射,该发射来自自陷激子发射.Cs3 Cu2 Br5的稳态光产额约为4000 ph./MeV,且X射线余辉性能表现与BGO晶体...
Here, a blue emitter Cs3Cu2Br5 is successfully synthesized by simply mixing CsBr aqueous solution and CuBr acid solution. Due to the self-trapped excitons emission, it has a large Stokes shift and negligible self-absorption. The light yield of Cs3Cu2Br5 powder is calculated for the first ...
Cs3Cu2Br5self-trapped excitonssingle-crystal growthwhite light-emitting diodesOwing to their excellent photoelectric properties, perovskite materials have broad application prospects; however, the toxicity of Pb limits the application of Pb-based perovskite materials. To overcome this problem, Pb-free ...
在导电底部电极上进行无铅全无机卤化物钙钛矿成膜,作为忆阻器的存储层;然后在Cs3Cu2Br5薄膜上沉积金属导电薄膜作为导电顶部电极.本发明方法制备的基于无铅全无机卤化物Cs3Cu2Br5钙钛矿薄膜的忆阻器,具有构建工艺和结构简单,同时拥有环境友好型和较高稳定性的优点;此外合成Cs3Cu2Br5薄膜的材料来源广泛且成本低,有利用...