Solution-based synthesis of high yield CZTS (Cu2ZnSnS4) spherical quantum dots

G. Rajesh; N. Muthukumarasamy; E. P. Subramanian; M. R. Venkatraman; S. Agilan; V. Ragavendran; M. Thambidurai; S. Velumani; Junsin Yi; Dhayalan Velauthapillai

doi:10.1016/j.spmi.2014.11.016

Solution-based synthesis of high yield CZTS (Cu₂ZnSnS₄) spherical quantum dots

G. Rajesh, N. Muthukumarasamy, E. P. Subramanian, M. R. Venkatraman, S. Agilan, V. Ragavendran, M. Thambidurai, S. Velumani, Junsin Yi, Dhayalan Velauthapillai

Department of Electronic and Electrical Engineering

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

30 Scopus citations

Abstract

High yield CZTS quantum dots have been synthesized using simple precursors by chemical precipitation technique. Formation mechanism of CZTS spherical quantum dots also has been investigated. According to the mechanism, copper sulfide nuclei firstly forms, and serves as the starting point for the nucleation and growth of CZTS. X-ray diffraction pattern, X-ray photoelectron spectra (XPS) and Raman spectra reveals the formation of pure kesterite structure Cu₂ ZnSnS₄ nanoparticles. HRTEM analysis reveals the formation of CZTS quantum dots with an average particle size of ∼8.3 nm. The elemental distribution of CZTS quantum dots studied using STEM elemental mapping reveals that Cu, Zn, Sn and S are present in the sample. The photoluminescence spectra of CZTS exhibit a broad red emission band at 657 nm. The optical band gap is shifted to the higher energy side and it shows the presence of quantum confinement effect.

Original language	English
Pages (from-to)	305-312
Number of pages	8
Journal	Superlattices and Microstructures
Volume	77
DOIs	https://doi.org/10.1016/j.spmi.2014.11.016
State	Published - Jan 2015

Keywords

Chemical precipitation technique
High yield
Low temperature
Quantum dots

Access to Document

10.1016/j.spmi.2014.11.016

Cite this

@article{c39b4836ccd847139f7ff7590c07b3ec,

title = "Solution-based synthesis of high yield CZTS (Cu2ZnSnS4) spherical quantum dots",

abstract = "High yield CZTS quantum dots have been synthesized using simple precursors by chemical precipitation technique. Formation mechanism of CZTS spherical quantum dots also has been investigated. According to the mechanism, copper sulfide nuclei firstly forms, and serves as the starting point for the nucleation and growth of CZTS. X-ray diffraction pattern, X-ray photoelectron spectra (XPS) and Raman spectra reveals the formation of pure kesterite structure Cu2 ZnSnS4 nanoparticles. HRTEM analysis reveals the formation of CZTS quantum dots with an average particle size of ∼8.3 nm. The elemental distribution of CZTS quantum dots studied using STEM elemental mapping reveals that Cu, Zn, Sn and S are present in the sample. The photoluminescence spectra of CZTS exhibit a broad red emission band at 657 nm. The optical band gap is shifted to the higher energy side and it shows the presence of quantum confinement effect.",

keywords = "Chemical precipitation technique, High yield, Low temperature, Quantum dots",

author = "G. Rajesh and N. Muthukumarasamy and Subramanian, \{E. P.\} and Venkatraman, \{M. R.\} and S. Agilan and V. Ragavendran and M. Thambidurai and S. Velumani and Junsin Yi and Dhayalan Velauthapillai",

year = "2015",

month = jan,

doi = "10.1016/j.spmi.2014.11.016",

language = "English",

volume = "77",

pages = "305--312",

journal = "Superlattices and Microstructures",

issn = "0749-6036",

publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - Solution-based synthesis of high yield CZTS (Cu2ZnSnS4) spherical quantum dots

AU - Rajesh, G.

AU - Muthukumarasamy, N.

AU - Subramanian, E. P.

AU - Venkatraman, M. R.

AU - Agilan, S.

AU - Ragavendran, V.

AU - Thambidurai, M.

AU - Velumani, S.

AU - Yi, Junsin

AU - Velauthapillai, Dhayalan

PY - 2015/1

Y1 - 2015/1

N2 - High yield CZTS quantum dots have been synthesized using simple precursors by chemical precipitation technique. Formation mechanism of CZTS spherical quantum dots also has been investigated. According to the mechanism, copper sulfide nuclei firstly forms, and serves as the starting point for the nucleation and growth of CZTS. X-ray diffraction pattern, X-ray photoelectron spectra (XPS) and Raman spectra reveals the formation of pure kesterite structure Cu2 ZnSnS4 nanoparticles. HRTEM analysis reveals the formation of CZTS quantum dots with an average particle size of ∼8.3 nm. The elemental distribution of CZTS quantum dots studied using STEM elemental mapping reveals that Cu, Zn, Sn and S are present in the sample. The photoluminescence spectra of CZTS exhibit a broad red emission band at 657 nm. The optical band gap is shifted to the higher energy side and it shows the presence of quantum confinement effect.

AB - High yield CZTS quantum dots have been synthesized using simple precursors by chemical precipitation technique. Formation mechanism of CZTS spherical quantum dots also has been investigated. According to the mechanism, copper sulfide nuclei firstly forms, and serves as the starting point for the nucleation and growth of CZTS. X-ray diffraction pattern, X-ray photoelectron spectra (XPS) and Raman spectra reveals the formation of pure kesterite structure Cu2 ZnSnS4 nanoparticles. HRTEM analysis reveals the formation of CZTS quantum dots with an average particle size of ∼8.3 nm. The elemental distribution of CZTS quantum dots studied using STEM elemental mapping reveals that Cu, Zn, Sn and S are present in the sample. The photoluminescence spectra of CZTS exhibit a broad red emission band at 657 nm. The optical band gap is shifted to the higher energy side and it shows the presence of quantum confinement effect.

KW - Chemical precipitation technique

KW - High yield

KW - Low temperature

KW - Quantum dots

UR - https://www.scopus.com/pages/publications/84919595022

U2 - 10.1016/j.spmi.2014.11.016

DO - 10.1016/j.spmi.2014.11.016

M3 - Article

AN - SCOPUS:84919595022

SN - 0749-6036

VL - 77

SP - 305

EP - 312

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

ER -

Solution-based synthesis of high yield CZTS (Cu₂ZnSnS₄) spherical quantum dots

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this