Wu Zhu, Choi Heekyoung, Hudson Zachary M
Department of Chemistry, The University of British Columbia, Vancouver, British Columbia, V6T 1Z1, Canada.
Angew Chem Int Ed Engl. 2023 Aug 7;62(32):e202301186. doi: 10.1002/anie.202301186. Epub 2023 May 15.
Artificial lighting currently consumes approximately one-fifth of global electricity production. Organic emitters with white persistent RTP have potential for applications in energy-efficient lighting technologies, due to their ability to harvest both singlet and triplet excitons. Compared to heavy metal phosphorescent materials, they have significant advantages in cost, processability, and reduced toxicity. Phosphorescence efficiency can be improved by introducing heteroatoms, heavy atoms, or by incorporating luminophores within a rigid matrix. White-light emission can be achieved by tuning the ratio of fluorescence to phosphorescence intensity or by pure phosphorescence with a broad emission spectrum. This review summarizes recent advances in the design of purely organic RTP materials with white-light emission, describing single-component and host-guest systems. White phosphorescent carbon dots and representative applications of white-light RTP materials are also introduced.
目前，人工照明消耗了全球约五分之一的电力生产。具有白色持久室温磷光的有机发光体因其能够捕获单线态和三线态激子而在节能照明技术中具有应用潜力。与重金属磷光材料相比，它们在成本、可加工性和降低毒性方面具有显著优势。通过引入杂原子、重原子或在刚性基质中掺入发光体可以提高磷光效率。通过调节荧光与磷光强度的比例或通过具有宽发射光谱的纯磷光可以实现白光发射。本文综述了具有白光发射的纯有机室温磷光材料设计的最新进展，描述了单组分和主客体体系。还介绍了白色磷光碳点和白光室温磷光材料的代表性应用。
