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- Title
Synthesis and Unique Photoluminescence Properties of Nitrogen-Rich Quantum Dots and Their Applications.
- Authors
Xiuxian Chen; Qingqing Jin; Lizhu Wu; ChenHo Tung; Xinjing Tang
- Abstract
Nitrogen-rich quantum dots (N-dots) were serendipitously synthesized in methanol or aqueous solution at a reaction temperature as low as 50 8C. These N-dots have a small size (less than 10 nm) and contain a high percentage of the element nitrogen, and are thus a new member of quantumdot family. These N-dots show unique and distinct photoluminescence properties with an increasing percentage of nitrogen compared to the neighboring carbon dots. The photoluminescence behavior was adjusted from blue to green simply through variation of the reaction temperature. Furthermore, the detailed mechanism of N-dot formation was also proposed with the trapped intermediate. These N-dots have also shown promising applications as fluorescent ink and biocompatible staining in C. elegans.
- Subjects
OPTICAL properties of quantum dots; PHOTOLUMINESCENCE; QUANTUM dot synthesis; METHANOL; NITROGEN spectra
- Publication
Angewandte Chemie International Edition, 2014, Vol 53, Issue 46, p12542
- ISSN
1433-7851
- Publication type
Article
- DOI
10.1002/anie.201408422