Synthesis and characterization of transition metal doped ZnSe/ZnS nanocrystals by a rapid photochemical method
In the present work, a one pot, rapid and room temperature photochemical Synthesis of transition metal (TM; Cu, Mn, Cr)-doped ZnSe/ZnS core/shell nanocrystals (NCs) was reported. FT-IR spectrum confirmed the capping of ZnSe by thioglycolic acid. XRD and TEM analysis demonstrated zinc blende phase NC...
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| Format: | Article |
| Language: | English |
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Nanoscience and Nanotechnology Research Center, University of Kashan
2019-01-01
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| Series: | Journal of Nanostructures |
| Subjects: | |
| Online Access: | http://jns.kashanu.ac.ir/article_87900_4f579d13ae7713c96fb812498600958e.pdf |
| _version_ | 1818134435403399168 |
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| author | AliReza Bahador Mehdi Molaei Masoud Karimipour |
| author_facet | AliReza Bahador Mehdi Molaei Masoud Karimipour |
| author_sort | AliReza Bahador |
| collection | DOAJ |
| description | In the present work, a one pot, rapid and room temperature photochemical Synthesis of transition metal (TM; Cu, Mn, Cr)-doped ZnSe/ZnS core/shell nanocrystals (NCs) was reported. FT-IR spectrum confirmed the capping of ZnSe by thioglycolic acid. XRD and TEM analysis demonstrated zinc blende phase NCs with an average size of around 3 and 5 nm for TM:ZnSe and TM:ZnSe/ZnS NCs, respectively. PL spectra of ZnSe NCs showed a broad emission with two peaks located at 380 and 490 nm related to exitonic and trap states emission, respectively. For ZnSe:Cu NCs, exitonic emission disappeared completely and PL intensity of trap states emission increased. For ZnSe:Mn and ZnSe:Cr NCs, the exitonic emission decreased gradually with the increase in the impurity concentration whereas trap state emission increased. Moreover a peak about 580 nm was appeared from 4T1-6A1 transition of the Mn impurity. ZnS Shell increased photoluminescence and stability of all of TM-doped ZnSe NCs. |
| first_indexed | 2024-12-11T09:08:34Z |
| format | Article |
| id | doaj.art-08b2f16449f6432dbec5b6e652cc7a80 |
| institution | Directory Open Access Journal |
| issn | 2251-7871 2251-788X |
| language | English |
| last_indexed | 2024-12-11T09:08:34Z |
| publishDate | 2019-01-01 |
| publisher | Nanoscience and Nanotechnology Research Center, University of Kashan |
| record_format | Article |
| series | Journal of Nanostructures |
| spelling | doaj.art-08b2f16449f6432dbec5b6e652cc7a802022-12-22T01:13:34ZengNanoscience and Nanotechnology Research Center, University of KashanJournal of Nanostructures2251-78712251-788X2019-01-019112413010.22052/JNS.2019.01.01387900Synthesis and characterization of transition metal doped ZnSe/ZnS nanocrystals by a rapid photochemical methodAliReza Bahador0Mehdi Molaei1Masoud Karimipour2Department of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, IranDepartment of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, IranDepartment of Physics, Faculty of Science, Vali-e-Asr University, Rafsanjan, IranIn the present work, a one pot, rapid and room temperature photochemical Synthesis of transition metal (TM; Cu, Mn, Cr)-doped ZnSe/ZnS core/shell nanocrystals (NCs) was reported. FT-IR spectrum confirmed the capping of ZnSe by thioglycolic acid. XRD and TEM analysis demonstrated zinc blende phase NCs with an average size of around 3 and 5 nm for TM:ZnSe and TM:ZnSe/ZnS NCs, respectively. PL spectra of ZnSe NCs showed a broad emission with two peaks located at 380 and 490 nm related to exitonic and trap states emission, respectively. For ZnSe:Cu NCs, exitonic emission disappeared completely and PL intensity of trap states emission increased. For ZnSe:Mn and ZnSe:Cr NCs, the exitonic emission decreased gradually with the increase in the impurity concentration whereas trap state emission increased. Moreover a peak about 580 nm was appeared from 4T1-6A1 transition of the Mn impurity. ZnS Shell increased photoluminescence and stability of all of TM-doped ZnSe NCs.http://jns.kashanu.ac.ir/article_87900_4f579d13ae7713c96fb812498600958e.pdftm:znse ncsphotochemical methodcharacterizationcore/shell |
| spellingShingle | AliReza Bahador Mehdi Molaei Masoud Karimipour Synthesis and characterization of transition metal doped ZnSe/ZnS nanocrystals by a rapid photochemical method Journal of Nanostructures tm:znse ncs photochemical method characterization core/shell |
| title | Synthesis and characterization of transition metal doped ZnSe/ZnS nanocrystals by a rapid photochemical method |
| title_full | Synthesis and characterization of transition metal doped ZnSe/ZnS nanocrystals by a rapid photochemical method |
| title_fullStr | Synthesis and characterization of transition metal doped ZnSe/ZnS nanocrystals by a rapid photochemical method |
| title_full_unstemmed | Synthesis and characterization of transition metal doped ZnSe/ZnS nanocrystals by a rapid photochemical method |
| title_short | Synthesis and characterization of transition metal doped ZnSe/ZnS nanocrystals by a rapid photochemical method |
| title_sort | synthesis and characterization of transition metal doped znse zns nanocrystals by a rapid photochemical method |
| topic | tm:znse ncs photochemical method characterization core/shell |
| url | http://jns.kashanu.ac.ir/article_87900_4f579d13ae7713c96fb812498600958e.pdf |
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