Published March 2014 | Version v1
Journal article Metadata-only

Novel Au+-doped Zn xCd1−xS/ZnS core/shell quantum dots

Creators

  • 1. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin, 130022 (China)

Description

Au+ ions have been successfully incorporated into the lattice of ZnxCd1−xS quantum dots as luminescent centers via an aqueous method. The dopant emission can be tuned in the range of 445 to 570 nm, and the highest quantum yield can reach as high as 30%. Our results showed that Au+ ions can be used as an excellent luminescent dopant in doped quantum dots. Finally, these water-soluble quantum dots can be used directly in PL imaging of HepG2 cells without conjugating any biological targets, indicating a high potential application in bio-labeling. (papers)

Availability note (English)

Available from http://dx.doi.org/10.1088/2053-1591/1/1/015033

Additional details

Identifiers

DOI
10.1088/2053-1591/1/1/015033;

Publishing Information

Journal Title
Materials Research Express (Online)
Journal Volume
1
Journal Issue
1
Journal Page Range
[9 p.]
ISSN
2053-1591

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
47047988
Subject category
S36: MATERIALS SCIENCE; S60: APPLIED LIFE SCIENCES;
Descriptors DEI
ANIMAL CELLS; CADMIUM SULFIDES; CONCENTRATION RATIO; DOPED MATERIALS; GOLD IONS; LABELLING; PHOTOLUMINESCENCE; QUANTUM DOTS; QUANTUM EFFICIENCY; WATER; ZINC SULFIDES
Descriptors DEC
CADMIUM COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; DIMENSIONLESS NUMBERS; EFFICIENCY; EMISSION; HYDROGEN COMPOUNDS; INORGANIC PHOSPHORS; IONS; LUMINESCENCE; MATERIALS; NANOSTRUCTURES; OXYGEN COMPOUNDS; PHOSPHORS; PHOTON EMISSION; SULFIDES; SULFUR COMPOUNDS; ZINC COMPOUNDS