摘要
稀土纳米晶的上转换发光具有近红外光激发、可见/紫外光或短波长近红外发射的特点,在微型激光器、超分辨光学成像、光遗传学、温度探测以及多通道成像等领域具有重要的应用.针对该类纳米晶的发光效率低、发光调控手段单一的问题,本文从稀土纳米晶的组成、结构与上转换发光的关联出发,重点介绍了电、磁场、压力以及温度对上转换发光影响的研究进展.
The upconversion emission of rare-earth nanocrystals,with the advantages of near-infrared excitation,visible/ultraviolet or short-wavelength near-infrared emission,has the great potential for applications in the fields of microlasers,super-resolution imaging,optogenetics,local temperature detection,and multi-channel imaging.Aiming at addressing the low quantum efficiency and the tedious upconversion emission studies,the correlation of the composition and structure of rare-earth nanocrystals with the upconversion emissions was introduced,and the influences from electricitic and magnetic field,pressure and temperature on the upconversion emission were discussed in this review.
作者
董浩
梅晟
孙聆东
严纯华
Hao Dong;Sheng Mei;Ling-Dong Sun;Chun-Hua Yan(Beijing National Laboratory for Molecular Sciences,State Key Laboratory of Rare Earth Materials Chemistry and Applications,PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China;College of Chemistry and Chemical Engineering,Lanzhou University,Lanzhou 730000,China)
出处
《中国科学：化学》
CAS
CSCD
北大核心
2020年第11期1560-1574,共15页
SCIENTIA SINICA Chimica
基金
国家重点研发计划(编号:2017YFA0205101,2017YFA0205104)
国家自然科学基金(编号:21590791,21771005,21931001)资助项目。
关键词
稀土纳米晶
上转换发光
核壳结构
温度
高压光谱
rare earth nanocrystals
upconversion emission
core/shell structure
temperature
high pressure spectroscopy
