光子上转换
发光
材料科学
纳米探针
亮度
纳米颗粒
粒子(生态学)
纳米技术
能源景观
光电子学
拓扑(电路)
化学物理
光学
物理
海洋学
数学
组合数学
地质学
热力学
作者
Yanxin Zhang,Rong Wen,Jiaying Hu,Daoming Guan,Xiaochen Qiu,Yunxiang Zhang,Daniel S. Kohane,Qian Liu
标识
DOI:10.1038/s41467-022-33660-8
摘要
Abstract Manipulating topological arrangement is a powerful tool for tuning energy migration in natural photosynthetic proteins and artificial polymers. Here, we report an inorganic optical nanosystem composed of NaErF 4 and NaYbF 4 , in which topological arrangement enhanced upconversion luminescence. Three architectures are designed for considerations pertaining to energy migration and energy transfer within nanoparticles: outside-in, inside-out, and local energy transfer. The outside-in architecture produces the maximum upconversion luminescence, around 6-times brighter than that of the inside-out at the single-particle level. Monte Carlo simulation suggests a topology-dependent energy migration favoring the upconversion luminescence of outside-in structure. The optimized outside-in structure shows more than an order of magnitude enhancement of upconversion brightness compared to the conventional core-shell structure at the single-particle level and is used for long-term single-particle tracking in living cells. Our findings enable rational nanoprobe engineering for single-molecule imaging and also reveal counter-intuitive relationships between upconversion nanoparticle structure and optical properties.
科研通智能强力驱动
Strongly Powered by AbleSci AI