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...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI
2016
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/52300/ http://psasir.upm.edu.my/id/eprint/52300/1/52300.pdf |
| _version_ | 1848852067932700672 |
|---|---|
| author | Salem, Aeshah Nizar Saion, Elias Al-Hada, Naif Mohammed Shaari, Abdul Halim Mohamed Kamari, Halimah Soltani, Nayereh Radiman, Shahidan |
| 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 |
| building | UPM Institutional Repository |
| collection | Online Access |
| 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 | 2025-11-15T10:32:11Z |
| format | Article |
| id | upm-52300 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:32:11Z |
| publishDate | 2016 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-523002017-06-05T05:41:54Z 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 |
| 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 |
| 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 |
| url | http://psasir.upm.edu.my/id/eprint/52300/ http://psasir.upm.edu.my/id/eprint/52300/ http://psasir.upm.edu.my/id/eprint/52300/ http://psasir.upm.edu.my/id/eprint/52300/1/52300.pdf |