Near-infrared-emitting two-dimensional codes based on lattice-strained core/(doped) shell quantum dots with long fluorescence lifetime.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 25066411.
- Also identified by DOI 10.1002/adma.201402369.
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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.
Medical subject headings
- Cadmium Compounds
- Quantum Dots
- Spectroscopy, Near-Infrared
- Sulfides
- Tellurium