Versatile Spectral and Lifetime Multiplexing Nanoplatform with Excitation Orthogonalized Upconversion Luminescence

被引:256
作者
Dong, Hao [1 ]
Sun, Ling-Dong [1 ]
Feng, Wei [2 ]
Gu, Yuyang [2 ]
Li, Fuyou [2 ]
Yan, Chun-Hua [1 ]
机构
[1] Peking Univ, Beijing Natl Lab Mol Sci, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
[2] Fudan Univ, Inst Biomed Sci, Dept Chem, State Key Lab Mol Engn Polymers, 220 Handan Rd, Shanghai 200433, Peoples R China
关键词
multiplexing upconversion; lanthanide; core/shell nanoparticle; energy transfer; ENERGY-TRANSFER; NANOPARTICLES; NANOCRYSTALS; PHOTON; LANTHANIDES; GROWTH; LAYER; YB3+;
D O I
10.1021/acsnano.7b00559
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Optical encoding together with color multiplexing benefits on-site detection, and enriching the components with narrow emissions from lanthanide could greatly increase the coding density. Here, we show a typical example to combine emission color and lifetime that are simultaneously integrated in a single lanthanide nanoparticle. With the multicompartment core/shell structure, the nanoparticles can activate different emitting pathways under varied excitation. This enables the nanoparticles to generate versatile excitation orthogonalized upconversion luminescence in both emission colors and lifetimes. As a typical example, green emission of Er3+ and blue emission of Tm3+ can be triggered with 808 and 980 nm lasers, respectively. Moreover, with incorporation of Tb3+, not only is emission from Tb3+ introduced but also the lifetime difference of 0.13 ms (Er3+) and 3.6 ms (Tb3+) is yielded for the green emission, respectively. Multiplexed fingerprint imaging and time-gated luminescence imaging were achieved in wavelength and lifetime dimensions. The spectral and lifetime encoding ability from lanthanide luminescence greatly broadens the scope of luminescent materials for optical multiplexing studies.
引用
收藏
页码:3289 / 3297
页数:9
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