High luminescence of CdTe/CdSe/CdS core/shell/shell QDs: synthesis via a simple photochemical approach and gamma dosimetry application

被引：2

作者：

Dehghan, Sima ^{[1
]}

Molaei, Mehdi ^{[1
]}

Alehdaghi, Hassan ^{[2
]}

Karimipour, Masoud ^{[1
]}

机构：

[1] Vali e Asr Univ, Fac Sci, Dept Phys, Rafsanjan, Iran

[2] Hakim Sabzevari Univ, Fac Sci, Dept Phys, Sabzevar, Iran

来源：

JOURNAL OF COORDINATION CHEMISTRY | 2022年 / 75卷 / 5-6期

关键词：

CdTe; CdSe; CdS; high luminescence; gamma irradiation; dosimetry; SHELL QUANTUM DOTS; PHOTOLUMINESCENCE PROPERTIES; OPTICAL-PROPERTIES; CDS NANOCRYSTALS; GREEN SYNTHESIS; CORE; CDTE; GROWTH; ZNSE; NANOPARTICLES;

D O I：

10.1080/00958972.2022.2067988

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this research CdTe/CdSe/CdS core/shell/shell quantum dots (QDs) were synthesized by a photochemical approach using thioglycolic acid as capping agent and S2- source for CdS shell growth. X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform-infrared spectroscopy (FT-IR), and Raman results confirmed formation of CdTe/CdSe/CdS core/shell/shell structure. Photoluminescence (PL) quantum yield (QY) of the CdTe QDs was 23% and 50 and 70% for CdTe/CdSe and CdTe/CdSe/CdS QDs, respectively. Effect of Co-60 gamma irradiation on optical and structural properties of CdTe and CdTe/CdSe/CdS core/shell/shell QDs was investigated. The obtained results indicated stability of crystalline structure of QDs after gamma irradiation but PL intensity of the CdTe/CdSe/CdS QDs decreased gradually after receiving different doses of gamma irradiation with a red shift in PL peak position. The obtained results suggested these luminescence QDs as potential materials for gamma dosimetry.

引用

页码：862 / 872

页数：11

共 35 条

[21] Synthesis of CdS nanocrystals by a microwave activated method and investigation of the photoluminescence and electroluminescence properties
Molaei, M.
Iranizad, E. Saievar
Marandi, M.
Taghavinia, N.
Amrollahi, R.
[J]. APPLIED SURFACE SCIENCE, 2011, 257 (23) : 9796 - 9801
[22] Simple green synthesis of amino acid functionalised CdTe/CdSe/ZnSe core-multi shell with improved cell viability for cellular imaging
Ncapayi, Vuyelwa
Parani, Sundararajan
Songca, Sandile P.
Kodama, Tetsuya
Oluwafemi, Oluwatobi S.
[J]. MATERIALS LETTERS, 2017, 189 : 168 - 171
[23] Formation of high-quality CdTe, CdSe, and CdS nanocrystals using CdO as precursor
Peng, ZA
Peng, XG
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (01) : 183 - 184
[24] Control of photoluminescence properties of CdSe nanocrystals in growth
Qu, LH
Peng, XG
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (09) : 2049 - 2055
[25] Alternative routes toward high quality CdSe nanocrystals
Qu, LH
Peng, ZA
Peng, XG
[J]. NANO LETTERS, 2001, 1 (06) : 333 - 337
[26] Raju SP, 2018, INDIAN J PURE AP PHY, V56, P624
[27] ZnS Shell Growth On Thiol Capped CdTe Quantum Dots Using Gamma Irradiation
Raju, S. P.
Hareesh, K.
Pai, S. Chethan
Dhole, S. D.
Sanjeev, Ganesh
[J]. 61ST DAE-SOLID STATE PHYSICS SYMPOSIUM, 2017, 1832
[28] Microwave-assisted synthesis of water-dispersed CdTe/CdSe core/shell type II quantum dots
Sai, Li-Man
Kong, Xiang Yang
[J]. NANOSCALE RESEARCH LETTERS, 2011, 6 : 1 - 7
[29] Formation of a Colloidal CdSe and ZnSe Quantum Dots via a Gamma Radiolytic Technique
Salem, Aeshah
Saion, Elias
Al-Hada, Naif Mohammed
Shaari, Abdul Halim
Kamari, Halimah Mohamed
Soltani, Nayereh
Radiman, Shahidan
[J]. APPLIED SCIENCES-BASEL, 2016, 6 (10):
[30] Facile synthesis and characterization of water soluble ZnSe/ZnS quantum dots for cellar imaging
Shu, Chang
Huang, Bin
Chen, Xiangdong
Wang, Yan
Li, Xuequan
Ding, Li
Zhong, Wenying
[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2013, 104 : 143 - 149

← 1 2 3 4 →