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Formation of a colloidal CdSe and ZnSe quantum dots via a gamma radiolytic technique

Colloidal cadmium selenide (CdSe) and zinc selenide (ZnSe) quantum dots with a hexagonal structure were synthesized by irradiating an aqueous solution containing metal precursors, poly (vinyl pyrrolidone), isopropyl alcohol, and organic solvents with 1.25-MeV gamma rays at a dose of 120 kGy. The rad...

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প্রধান লেখক: Salem, Aeshah Nizar, Saion, Elias, Al-Hada, Naif Mohammed, Shaari, Abdul Halim, Mohamed Kamari, Halimah, Soltani, Nayereh, Radiman, Shahidan
বিন্যাস: প্রবন্ধ
ভাষা:English
প্রকাশিত: MDPI 2016
অনলাইন ব্যবহার করুন:http://psasir.upm.edu.my/id/eprint/52300/1/52300.pdf
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id oai:psasir.upm.edu.my:52300
record_format eprints
spelling oai:psasir.upm.edu.my:52300 http://psasir.upm.edu.my/id/eprint/52300/ Formation of a colloidal CdSe and ZnSe quantum dots via a gamma radiolytic technique Salem, Aeshah Nizar Saion, Elias Al-Hada, Naif Mohammed Shaari, Abdul Halim Mohamed Kamari, Halimah Soltani, Nayereh Radiman, Shahidan Colloidal cadmium selenide (CdSe) and zinc selenide (ZnSe) quantum dots with a hexagonal structure were synthesized by irradiating an aqueous solution containing metal precursors, poly (vinyl pyrrolidone), isopropyl alcohol, and organic solvents with 1.25-MeV gamma rays at a dose of 120 kGy. The radiolytic processes occurring in water result in the nucleation of particles, which leads to the growth of the quantum dots. The physical properties of the CdSe and ZnSe nanoparticles were measured by various characterization techniques. X-ray diffraction (XRD) was used to confirm the nanocrystalline structure, energy-dispersive X-ray spectroscopy (EDX) was used to estimate the material composition of the samples, transmission electron microscopy (TEM) was used to determine the morphologies and average particle size distribution, and UV-visible spectroscopy was used to measure the optical absorption spectra, from which the band gap of the CdSe and ZnSe nanoparticles could be deduced. MDPI 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/52300/1/52300.pdf Salem, Aeshah Nizar and Saion, Elias and Al-Hada, Naif Mohammed and Shaari, Abdul Halim and Mohamed Kamari, Halimah and Soltani, Nayereh and Radiman, Shahidan (2016) Formation of a colloidal CdSe and ZnSe quantum dots via a gamma radiolytic technique. Applied Sciences, 6 (10). art. no. 278. pp. 1-10. ISSN 2076-3417 http://www.mdpi.com/2076-3417/6/10/278 10.3390/app6100278
institution UPM IR
collection UPM IR
language English
description Colloidal cadmium selenide (CdSe) and zinc selenide (ZnSe) quantum dots with a hexagonal structure were synthesized by irradiating an aqueous solution containing metal precursors, poly (vinyl pyrrolidone), isopropyl alcohol, and organic solvents with 1.25-MeV gamma rays at a dose of 120 kGy. The radiolytic processes occurring in water result in the nucleation of particles, which leads to the growth of the quantum dots. The physical properties of the CdSe and ZnSe nanoparticles were measured by various characterization techniques. X-ray diffraction (XRD) was used to confirm the nanocrystalline structure, energy-dispersive X-ray spectroscopy (EDX) was used to estimate the material composition of the samples, transmission electron microscopy (TEM) was used to determine the morphologies and average particle size distribution, and UV-visible spectroscopy was used to measure the optical absorption spectra, from which the band gap of the CdSe and ZnSe nanoparticles could be deduced.
format Article
author Salem, Aeshah Nizar
Saion, Elias
Al-Hada, Naif Mohammed
Shaari, Abdul Halim
Mohamed Kamari, Halimah
Soltani, Nayereh
Radiman, Shahidan
spellingShingle Salem, Aeshah Nizar
Saion, Elias
Al-Hada, Naif Mohammed
Shaari, Abdul Halim
Mohamed Kamari, Halimah
Soltani, Nayereh
Radiman, Shahidan
Formation of a colloidal CdSe and ZnSe quantum dots via a gamma radiolytic technique
author_facet Salem, Aeshah Nizar
Saion, Elias
Al-Hada, Naif Mohammed
Shaari, Abdul Halim
Mohamed Kamari, Halimah
Soltani, Nayereh
Radiman, Shahidan
author_sort Salem, Aeshah Nizar
title Formation of a colloidal CdSe and ZnSe quantum dots via a gamma radiolytic technique
title_short Formation of a colloidal CdSe and ZnSe quantum dots via a gamma radiolytic technique
title_full Formation of a colloidal CdSe and ZnSe quantum dots via a gamma radiolytic technique
title_fullStr Formation of a colloidal CdSe and ZnSe quantum dots via a gamma radiolytic technique
title_full_unstemmed Formation of a colloidal CdSe and ZnSe quantum dots via a gamma radiolytic technique
title_sort formation of a colloidal cdse and znse quantum dots via a gamma radiolytic technique
publisher MDPI
publishDate 2016
url http://psasir.upm.edu.my/id/eprint/52300/1/52300.pdf
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score 13.4562235

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