Synthesis and Characterization of Transition Metal Doped ZnSe/ ZnS Nanocrystals by a Rapid Photochemical Method

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bahadoor alireza; MOLAEI MEHDI; Karmipour Masoud

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Journal: JOURNAL OF NANOSTRUCTURES Year:2019 | Volume:9 | Issue:1 Page(s): 124-130

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Title

Synthesis and Characterization of Transition Metal Doped ZnSe/ ZnS Nanocrystals by a Rapid Photochemical Method

Author(s)

bahadoor alireza | MOLAEI MEHDI | Karmipour Masoud | Issue Writer Certificate

Keywords

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Combined delivery systems

Pluronic based delivery systems

Polymer drugs

Targeted therapies

Abstract

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.

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APA: Copy

bahadoor, alireza, MOLAEI, MEHDI, & Karmipour, Masoud. (2019). Synthesis and Characterization of Transition Metal Doped ZnSe/ ZnS Nanocrystals by a Rapid Photochemical Method. JOURNAL OF NANOSTRUCTURES, 9(1), 124-130. SID. https://sid.ir/paper/731361/en

Vancouver: Copy

bahadoor alireza, MOLAEI MEHDI, Karmipour Masoud. Synthesis and Characterization of Transition Metal Doped ZnSe/ ZnS Nanocrystals by a Rapid Photochemical Method. JOURNAL OF NANOSTRUCTURES[Internet]. 2019;9(1):124-130. Available from: https://sid.ir/paper/731361/en

IEEE: Copy

alireza bahadoor, MEHDI MOLAEI, and Masoud Karmipour, “Synthesis and Characterization of Transition Metal Doped ZnSe/ ZnS Nanocrystals by a Rapid Photochemical Method,” JOURNAL OF NANOSTRUCTURES, vol. 9, no. 1, pp. 124–130, 2019, [Online]. Available: https://sid.ir/paper/731361/en

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