One pot synthesis of stable water soluble thiol capped CdTe nanoparticles: Effect of precursor ratio, refluxing time and capping group on the optical property

Oluwatobi S. Oluwafemi; Jasmine Flowers; Olufemi O. Adeyemi; Sneha Bhagyaraj; Vuyelwa Ncapayi; Nkosingiphile Zikalala; Ephraim T. Gwebu

doi:10.1016/j.nanoso.2019.01.013

One pot synthesis of stable water soluble thiol capped CdTe nanoparticles: Effect of precursor ratio, refluxing time and capping group on the optical property

Oluwatobi S. Oluwafemi, Jasmine Flowers, Olufemi O. Adeyemi, Sneha Bhagyaraj, Vuyelwa Ncapayi, Nkosingiphile Zikalala, Ephraim T. Gwebu

Chemical Sciences

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Highly crystalline, monodispersed and stable water soluble thiol capped cadmium telluride nanoparticles (CdTe NPs) were synthesized via an environmental friendly, simple one-pot method in the absence of an inert atmosphere at constant pH. The effect of varying the precursor ratio and capping agent while keeping all other parameters constant, on the optical and structural properties of the as-synthesized nanocrystals was investigated. The optical and structural properties of the as-synthesized CdTe NPs was explored by using UV–visible (UV–Vis) absorption and photoluminescence (PL) spectroscopy, Fourier transform infra-red spectroscopy (FTIR) and transmission electron microscopy (TEM). Optical analysis shows that all the as-synthesized CdTe NPs possesses good optical properties with 1:0.8 ratio showing the highest absorbance and emission wavelength at different reaction time. The thiol capped water soluble CdTe NPs were optically stable at ambient conditions for several months.

Original language	English
Pages (from-to)	223-228
Number of pages	6
Journal	Nano-Structures and Nano-Objects
Volume	17
DOIs	https://doi.org/10.1016/j.nanoso.2019.01.013
Publication status	Published - Feb 2019

Keywords

CdTe
Green method
Nanoparticles
Stability

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
General Materials Science
Condensed Matter Physics
Physical and Theoretical Chemistry

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10.1016/j.nanoso.2019.01.013

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title = "One pot synthesis of stable water soluble thiol capped CdTe nanoparticles: Effect of precursor ratio, refluxing time and capping group on the optical property",

abstract = "Highly crystalline, monodispersed and stable water soluble thiol capped cadmium telluride nanoparticles (CdTe NPs) were synthesized via an environmental friendly, simple one-pot method in the absence of an inert atmosphere at constant pH. The effect of varying the precursor ratio and capping agent while keeping all other parameters constant, on the optical and structural properties of the as-synthesized nanocrystals was investigated. The optical and structural properties of the as-synthesized CdTe NPs was explored by using UV–visible (UV–Vis) absorption and photoluminescence (PL) spectroscopy, Fourier transform infra-red spectroscopy (FTIR) and transmission electron microscopy (TEM). Optical analysis shows that all the as-synthesized CdTe NPs possesses good optical properties with 1:0.8 ratio showing the highest absorbance and emission wavelength at different reaction time. The thiol capped water soluble CdTe NPs were optically stable at ambient conditions for several months.",

keywords = "CdTe, Green method, Nanoparticles, Stability",

author = "Oluwafemi, {Oluwatobi S.} and Jasmine Flowers and Adeyemi, {Olufemi O.} and Sneha Bhagyaraj and Vuyelwa Ncapayi and Nkosingiphile Zikalala and Gwebu, {Ephraim T.}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = feb,

doi = "10.1016/j.nanoso.2019.01.013",

language = "English",

volume = "17",

pages = "223--228",

journal = "Nano-Structures and Nano-Objects",

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T1 - One pot synthesis of stable water soluble thiol capped CdTe nanoparticles

T2 - Effect of precursor ratio, refluxing time and capping group on the optical property

AU - Oluwafemi, Oluwatobi S.

AU - Flowers, Jasmine

AU - Adeyemi, Olufemi O.

AU - Bhagyaraj, Sneha

AU - Ncapayi, Vuyelwa

AU - Zikalala, Nkosingiphile

AU - Gwebu, Ephraim T.

PY - 2019/2

Y1 - 2019/2

N2 - Highly crystalline, monodispersed and stable water soluble thiol capped cadmium telluride nanoparticles (CdTe NPs) were synthesized via an environmental friendly, simple one-pot method in the absence of an inert atmosphere at constant pH. The effect of varying the precursor ratio and capping agent while keeping all other parameters constant, on the optical and structural properties of the as-synthesized nanocrystals was investigated. The optical and structural properties of the as-synthesized CdTe NPs was explored by using UV–visible (UV–Vis) absorption and photoluminescence (PL) spectroscopy, Fourier transform infra-red spectroscopy (FTIR) and transmission electron microscopy (TEM). Optical analysis shows that all the as-synthesized CdTe NPs possesses good optical properties with 1:0.8 ratio showing the highest absorbance and emission wavelength at different reaction time. The thiol capped water soluble CdTe NPs were optically stable at ambient conditions for several months.

AB - Highly crystalline, monodispersed and stable water soluble thiol capped cadmium telluride nanoparticles (CdTe NPs) were synthesized via an environmental friendly, simple one-pot method in the absence of an inert atmosphere at constant pH. The effect of varying the precursor ratio and capping agent while keeping all other parameters constant, on the optical and structural properties of the as-synthesized nanocrystals was investigated. The optical and structural properties of the as-synthesized CdTe NPs was explored by using UV–visible (UV–Vis) absorption and photoluminescence (PL) spectroscopy, Fourier transform infra-red spectroscopy (FTIR) and transmission electron microscopy (TEM). Optical analysis shows that all the as-synthesized CdTe NPs possesses good optical properties with 1:0.8 ratio showing the highest absorbance and emission wavelength at different reaction time. The thiol capped water soluble CdTe NPs were optically stable at ambient conditions for several months.

KW - CdTe

KW - Green method

KW - Nanoparticles

KW - Stability

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U2 - 10.1016/j.nanoso.2019.01.013

DO - 10.1016/j.nanoso.2019.01.013

M3 - Article

AN - SCOPUS:85060674870

SN - 2352-507X

VL - 17

SP - 223

EP - 228

JO - Nano-Structures and Nano-Objects

JF - Nano-Structures and Nano-Objects

ER -

One pot synthesis of stable water soluble thiol capped CdTe nanoparticles: Effect of precursor ratio, refluxing time and capping group on the optical property

Abstract

Keywords

ASJC Scopus subject areas

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