Premium
Aqueous Synthesis of Glutathione‐Capped ZnSe and Zn 1– x Cd x Se Alloyed Quantum Dots
Author(s) -
Zheng Y.,
Yang Z.,
Ying J. Y.
Publication year - 2007
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.200601939
Subject(s) - quantum dot , materials science , aqueous solution , nanocrystal , quantum yield , fluorescence , nanotechnology , chemistry , optics , physics
Glutathione‐capped ZnSe and Zn 1–x Cd x Se alloyed quantum dots (QDs) have been successfully synthesized in aqueous solution (see figure). Their fluorescence emissions are tunable between 360 and 500 nm. The as‐prepared QDs have a quantum yield of up to 50 %, comparable to or better than most QDs prepared by an organometallic route. The approach can be easily scaled up for commercial production of alloyed nanocrystals of various compositions.