Inorganic Solid State Phosphors for Energy and Environmental Applications'

该项目将开发固态无机磷光体，利用f-和d-块激活剂元素在两个主要应用领域：照明用明亮磷光体，温度测量用温度响应磷光体。近年来，荧光粉的最大影响可能是用于家庭照明的白色LED的发展。当前市场上的装置使用蓝色LED源，其与由部分下转换磷光体（例如YAG：Ce）发射的光混合以产生白色光。它们已经实现了显着的节能，但在效率和光质量（显色指数和相关色温）方面仍远未达到最佳水平。我们的目标是开发化学和光学稳定的新型荧光粉。利用结构化学的详细见解来了解非辐射损失的途径及其温度依赖性，我们的目标是在典型的器件工作温度下优化发射效率。它将涉及新的离子材料的合成和结构表征，它们的物理特性与所选的OLED相关分子系统并行。

The project will develop solid state inorganic phosphors which exploit f- and d-block activator elements in two main application areas: bright phosphors for lighting,temperature-responsive phosphors for thermometry. Perhaps the highest single impact of phosphors in recent years has been the development of white LEDs for domestic lighting. Current in-market devices use a blue LED source which is mixed with light emitted by partial down-conversion phosphors (e.g. YAG:Ce) to produce white light. They have delivered significant energy savings yet they remain far from optimal in terms of efficiency and light quality (colour rendering index and correlated colour temperature). We will target the development of chemically and optically stable new phosphors. Using detailed insight from structural chemistry to understand pathways for non-radiative losses and their temperature dependence, we will aim to optimise emission efficiency at typical device operating temperatures. It will involve the synthesis and structural characterisation of new ionic materials, their photophysical characterisation in parallel with selected related molecular systems for OLEDs.