title: Near-infrared-emitting two-dimensional codes based on lattice-strained core/(doped) shell quantum dots with long fluorescence lifetime.
abstract: Lattice-strained CdTe/CdS:Cu quantum dots (QDs) with a widely tunable near-infrared (NIR) fluorescence emission spectrum (700-910 nm) and long lifetime (up to 1 μs) are synthesized. Based on the multiemission and multi-lifetime of the well-defined QDs, NIR-emitting two-dimensional (2D) codes are achieved by embedding as-prepared QDs into agarose beads. This provides a new strategy for fluorescent 2D codes.
authors: Guangdong Key Laboratory of Nanomedicine, Shenzhen Bioactive Materials Engineering Lab for Medicine, CAS Key Laboratory of Health Informatics, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, PR China.
authors: Chi
authors: C
authors: Chen
authors: Pengfei
authors: P
authors: Zhang
authors: Guanhui
authors: G
authors: Gao
authors: Duyang
authors: D
authors: Gao
authors: Yong
authors: Y
authors: Yang
authors: Hong
authors: H
authors: Liu
authors: Yuhui
authors: Y
authors: Wang
authors: Ping
authors: P
authors: Gong
authors: Lintao
authors: L
authors: Cai
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry* / Q000528:radiation effects; D008027:Light; D008422:Materials Testing; D045663:Quantum Dots; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D013440:Sulfides / Q000737:chemistry* / Q000528:radiation effects; D013691:Tellurium / Q000737:chemistry* / Q000528:radiation effects
chemical_list: D019187:Cadmium Compounds; D013440:Sulfides; C034939:cadmium sulfide; D013691:Tellurium; C028337:cadmium telluride
keywords: codes; doping; lifetime; near-infrared; quantum dots