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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MDPI AG
2016-09-01
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| Series: | Applied Sciences |
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| Online Access: | http://www.mdpi.com/2076-3417/6/10/278 |
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| author | Aeshah Salem Elias Saion Naif Mohammed Al-Hada Abdul Halim Shaari Halimah Mohamed Kamari Nayereh Soltani Shahidan Radiman |
| author_facet | Aeshah Salem Elias Saion Naif Mohammed Al-Hada Abdul Halim Shaari Halimah Mohamed Kamari Nayereh Soltani Shahidan Radiman |
| author_sort | Aeshah Salem |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-11T00:35:57Z |
| format | Article |
| id | doaj.art-21c57c95810a43f89b4c254ebacfd9d7 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T00:35:57Z |
| publishDate | 2016-09-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj.art-21c57c95810a43f89b4c254ebacfd9d72022-12-22T01:27:08ZengMDPI AGApplied Sciences2076-34172016-09-0161027810.3390/app6100278app6100278Formation of a Colloidal CdSe and ZnSe Quantum Dots via a Gamma Radiolytic TechniqueAeshah Salem0Elias Saion1Naif Mohammed Al-Hada2Abdul Halim Shaari3Halimah Mohamed Kamari4Nayereh Soltani5Shahidan Radiman6Department of Physics, University Putra Malaysia, Serdang 43400, Selangor, MalaysiaDepartment of Physics, University Putra Malaysia, Serdang 43400, Selangor, MalaysiaDepartment of Physics, University Putra Malaysia, Serdang 43400, Selangor, MalaysiaDepartment of Physics, University Putra Malaysia, Serdang 43400, Selangor, MalaysiaDepartment of Physics, University Putra Malaysia, Serdang 43400, Selangor, MalaysiaYoung Researchers and Elite Club, Shahr-e-Qods Branch, Islamic Azad University, Tehran 37541-374, IranSchool of Applied Physics, Faculty of Science and Technology, University Kebangsaan Malaysia, Bangi 43600, Selangor, MalaysiaColloidal 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.http://www.mdpi.com/2076-3417/6/10/278gamma radiolytic techniqueCdSeZnSequantum dotsparticle sizeband gap |
| spellingShingle | Aeshah Salem Elias Saion Naif Mohammed Al-Hada Abdul Halim Shaari Halimah Mohamed Kamari Nayereh Soltani Shahidan Radiman Formation of a Colloidal CdSe and ZnSe Quantum Dots via a Gamma Radiolytic Technique Applied Sciences gamma radiolytic technique CdSe ZnSe quantum dots particle size band gap |
| title | 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_short | 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 |
| topic | gamma radiolytic technique CdSe ZnSe quantum dots particle size band gap |
| url | http://www.mdpi.com/2076-3417/6/10/278 |
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