Near‐Infrared‐Emitting Two‐Dimensional Codes Based on Lattice‐Strained Core/(Doped) Shell Quantum Dots with Long Fluorescence Lifetime | Zendy

Chen Chi | Zendy; Zhang Pengfei | Zendy; Gao Guanhui | Zendy; Gao Duyang | Zendy; Yang Yong | Zendy; Liu Hong | Zendy; Wang Yuhui | Zendy; Gong Ping | Zendy; Cai Lintao | Zendy

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Near‐Infrared‐Emitting Two‐Dimensional Codes Based on Lattice‐Strained Core/(Doped) Shell Quantum Dots with Long Fluorescence Lifetime

Author(s) -

Chen Chi,

Zhang Pengfei,

Gao Guanhui,

Gao Duyang,

Yang Yong,

Liu Hong,

Wang Yuhui,

Gong Ping,

Cai Lintao

Publication year - 2014

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201402369

Subject(s) - quantum dot , fluorescence , materials science , infrared , optoelectronics , embedding , cadmium telluride photovoltaics , doping , lattice (music) , core (optical fiber) , photoluminescence , nanotechnology , computer science , physics , optics , artificial intelligence , acoustics , composite material

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.

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