Self-Healing Organic-Inorganic Hybrid Polymer Hosts for Solid-State Triplet-Triplet Annihilation Upconversion

用于固态三重态-三重态湮没上转换的自修复有机-无机杂化聚合物主体

• 批准号: 2738200
• 金额: --
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2738200
• 关键词: Self; Healing; Organic; Inorganic; Hybrid

The performance of solar cells can be improved through the use of upconverting layers. These convert uncaptured near-IR photons into higher-energy light that may be absorbed usefully by the cell. Beyond solar energy, the applications of upconversion include night-vision, anti-counterfeiting, bioimaging, photocatalysis and sensing. This project will focus on triplet-triplet annihilation upconversion (TTA-UC), which requires the interaction between pairs of lumophores, consisting of a sensitiser, which absorbs the low energy photons, and an emitter, which interacts with a second emitter to release a higher energy photon. TTA-UC is therefore a diffusion-mediated process, and as such shows lower efficiency in the solid state than in solution. However, a solid-state host is required for UC layers to be easily applied to solar cells. The key aim for this project is to develop a new generation of TTA-UC host materials based on organic-inorganic hybrid polymers.Beyond the primary upconverting functionality, this project will also aim to incorporate self-healing properties to the polymers as an additional functionality.

太阳能电池的性能可以通过使用上转换层来提高。它们将未捕获的近红外光子转化为更高能量的光，可能会被细胞有效地吸收。除了太阳能，上转换的应用还包括夜视、防伪、生物成像、光催化和传感。该项目将专注于三重态-三重态湮灭上转换(TTA-UC)，它需要两对发光体之间的相互作用，其中包括一个感光体和一个发射体，前者吸收低能光子，后者与第二个发射体相互作用，释放出更高能量的光子。因此，TTA-UC是一个扩散介导的过程，因此在固态中的效率低于在溶液中的效率。然而，要将UC层轻松应用于太阳能电池，需要固态主机。该项目的主要目标是开发基于有机-无机杂化聚合物的新一代TTA-UC主体材料。除了主要的上转换功能外，该项目还将致力于将自修复性能作为附加功能纳入聚合物中。