Inorganic Solid State Phosphors for Energy and Environmental Applications'

用于能源和环境应用的无机固态荧光粉

• 批准号: 2457237
• 金额: --
• 依托单位: Durham University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2457237
• 关键词: Inorganic; Solid; State; Phosphors; Energy

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.

该项目将开发固态无机荧光粉，该荧光粉在两个主要应用领域中利用f-和d-块激活剂元素：用于照明的明亮荧光粉，用于测温的温度敏感型荧光粉。近年来，荧光粉的最大单一影响可能是家用照明用白色LED的发展。目前市场上的设备使用蓝色LED光源，该光源与部分下转换荧光粉(例如：YAG：Ce)发出的光混合以产生白光。它们提供了显著的能源节约，但在效率和光线质量(显色指数和相关色温)方面仍远未达到最佳。我们将致力于化学和光学稳定的新型荧光粉的开发。使用结构化学的详细见解来了解非辐射损失的途径及其与温度的关系，我们的目标是在典型设备运行温度下优化发射效率。它将涉及新离子材料的合成和结构表征，它们的光物理表征与用于有机发光二极管的相关分子系统的平行。