Co-precipitation Synthesis of CdTe/ ZnS, ZnSe, CdS and CdSe Core-Shell Quantum Dots

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Shirzadeh Derabi h.; SHAFIEE AFARANI M.; ARABI A.M.; MOHEBBI KALHORI D.

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Journal: JOURNAL OF COLOR SCIENCE AND TECHNOLOGY Year:2019 | Volume:13 | Issue:2 Page(s): 89-98

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Title

Co-precipitation Synthesis of CdTe/ ZnS, ZnSe, CdS and CdSe Core-Shell Quantum Dots

Author(s)

Shirzadeh Derabi h. | SHAFIEE AFARANI M. | ARABI A.M. | MOHEBBI KALHORI D. | Issue Writer Certificate

Keywords

Quantom dotsQ1

Core-shellQ1

PhotoluminescenceQ1

CdTeQ1

Abstract

In the present work CdTe/ ZnS, ZnSe, CdS, CdSe Core-shell quantum dots were synthesized via co-precipitation route. The effect of reflux intervals from 1 to 7 hours, on the CdTe cores, characteristics such as: Photoluminescence properties, band gap, structure, and microstructure were studied. Results showed that synthesis with the reflux time of 1 hour led to proper CdTe core with the size of about 4nm, emission wavelength of 555 nm, and band gap of 2. 25 eV. More reflux time caused to particle size enlargement, emission shift to higher wavelength values, and band gap decrease. Moreover, ZnS, ZnSe, CdS, and CdSe shells were in-situ synthesized on the CdTe cores. Formation of these shells led to emission red shift with the wavelength up to 591 nm and band gap decrease to 2. 15 eV. J. Color Sci. Tech. 13(2019), 89-98© . Institute for Color Science and Technology

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APA: Copy

Shirzadeh Derabi, h., SHAFIEE AFARANI, M., ARABI, A.M., & MOHEBBI KALHORI, D.. (2019). Co-precipitation Synthesis of CdTe/ ZnS, ZnSe, CdS and CdSe Core-Shell Quantum Dots. JOURNAL OF COLOR SCIENCE AND TECHNOLOGY, 13(2 ), 89-98. SID. https://sid.ir/paper/137332/en

Vancouver: Copy

Shirzadeh Derabi h., SHAFIEE AFARANI M., ARABI A.M., MOHEBBI KALHORI D.. Co-precipitation Synthesis of CdTe/ ZnS, ZnSe, CdS and CdSe Core-Shell Quantum Dots. JOURNAL OF COLOR SCIENCE AND TECHNOLOGY[Internet]. 2019;13(2 ):89-98. Available from: https://sid.ir/paper/137332/en

IEEE: Copy

h. Shirzadeh Derabi, M. SHAFIEE AFARANI, A.M. ARABI, and D. MOHEBBI KALHORI, “Co-precipitation Synthesis of CdTe/ ZnS, ZnSe, CdS and CdSe Core-Shell Quantum Dots,” JOURNAL OF COLOR SCIENCE AND TECHNOLOGY, vol. 13, no. 2 , pp. 89–98, 2019, [Online]. Available: https://sid.ir/paper/137332/en

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