Investigation on the effect of Gamma-ray irradiation on the luminescence properties of Quantum Dots in order to Dosimetry Applications

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Assar noghabi E.; ALEHDAGHI H.; AZADEGAN B.; MOWLAVI A.A.; BAEDI J.; MALEKI B.

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Journal: NANOSCALE Year:2019 | Volume:6 | Issue:1 Page(s): 28-35

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Title

Investigation on the effect of Gamma-ray irradiation on the luminescence properties of Quantum Dots in order to Dosimetry Applications

Author(s)

Keywords

Optical propertiesQ1

Quantum DotsQ2

Gamma irradiationQ1

DosimetryQ1

CdSQ1

CQDQ1

Abstract

Herein, the Optical properties of CdS and Carbon Quantum Dots (QDs) for the first time under Gamma irradiation was studied. The CdS QDs were synthesized by a rapid, facile and low cost microwave assisted method and carbon QDs extracted from orange juice by hydrothermal method. The CdS QDs were prepared just after a couple minute of microwave irradiation and the carbon QDs were synthesized after 150 min. in 120 C° in oven. The samples were exposure by gamma ray with source of Co-60 within 0-20 kGy. The results showed that Gamma irradiation suppress the photoluminescence (PL) intensity of QDs. A linear relation between PL intensity and logarithmic dose of gamma was found for the matrixed CdS QDs deposited top of glass. The initial size of CdS QDs was indicated about 3. 4 nm by transmission electron microscopy (TEM). For water-soluble CdS QDs and powdered carbon QDs, PL intensity was decreased as dose of 20 kGy Gamma irradiation. While the water-soluble carbon QDs were stable after Gamma irradiation. These results shows that the luminescent nanostructure can be a new candidate for Dosimetry.

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APA: Copy

Assar noghabi, E., ALEHDAGHI, H., AZADEGAN, B., MOWLAVI, A.A., BAEDI, J., & MALEKI, B.. (2019). Investigation on the effect of Gamma-ray irradiation on the luminescence properties of Quantum Dots in order to Dosimetry Applications. NANOSCALE, 6(1 ), 28-35. SID. https://sid.ir/paper/257056/en

Vancouver: Copy

Assar noghabi E., ALEHDAGHI H., AZADEGAN B., MOWLAVI A.A., BAEDI J., MALEKI B.. Investigation on the effect of Gamma-ray irradiation on the luminescence properties of Quantum Dots in order to Dosimetry Applications. NANOSCALE[Internet]. 2019;6(1 ):28-35. Available from: https://sid.ir/paper/257056/en

IEEE: Copy

E. Assar noghabi, H. ALEHDAGHI, B. AZADEGAN, A.A. MOWLAVI, J. BAEDI, and B. MALEKI, “Investigation on the effect of Gamma-ray irradiation on the luminescence properties of Quantum Dots in order to Dosimetry Applications,” NANOSCALE, vol. 6, no. 1 , pp. 28–35, 2019, [Online]. Available: https://sid.ir/paper/257056/en

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