Study on Fluorescence Characteristic of a Complex Probe οf CdSe Quantum Dots Coupling with Thiazole Orange

• Authors: X. Fei , G. Jia , J. Wang , Y. Gu
• Languages of publication: EN

Abstracts

EN

CdSe quantum dots were synthesized using thioglycolic acid as stabilizer in aqueous solution under N_{2}. The UV-vis spectrometry and fluorescence spectra indicate that the bimodal quantum dots were formed and the optical band gaps are about 650 nm and 750 nm, respectively. The quantum dots coated with TO were prepared in room temperature, and the fluorescence characteristic was studied. The result showed that the peak shift of quantum dots fluorescence spectra can mainly be due to the change of the capping layer, resulting in the confinement energy change. This is vital for the investigating on of the forming process and mechanisms of the combination of thiazole orange dye and quantum dots.

Keywords

EN

73.63.Kv; 78.55.-m; 78.67.-n

Discipline

• 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)
• 78.67.-n: Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures(for magnetic properties of nanostructures, see 75.75.-c; for electronic transport in nanoscale structures, see 73.63.-b; for mechanical properties of nanoscale systems, see 62.25.-g)
• 73.63.Kv: Quantum dots

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 117
• Issue: 6
• Pages: 949-952

Dates

published

2010-06

received

2009-12-22

(unknown)

2010-04-02

Contributors

author

X. Fei

• Tianjin Institute of Urban Construction, Tianjin 300384, China

author

G. Jia

• Tianjin Institute of Urban Construction, Tianjin 300384, China

author

J. Wang

• Tianjin Institute of Urban Construction, Tianjin 300384, China

author

Y. Gu

• Tianjin Institute of Urban Construction, Tianjin 300384, China

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Identifiers

DOI

10.12693/APhysPolA.117.949