A facile method to synthesize CZTS quantum dots for solar cell applications

被引：19

作者：

Das, Sonali ^{[1
]}

Alam, Injmul ^{[1
]}

Raiguru, Jagatpati ^{[1
]}

Subramanyam, B. V. R. S. ^{[1
]}

Mahanandia, Pitamber ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Phys & Astron, Rourkela 769008, Odisha, India

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2019年 / 105卷

关键词：

Cu(2)ZnSuS(4); Quantum dot; Solar cell; OPTICAL-PROPERTIES; FILM; CONFINEMENT; SIZE;

D O I：

10.1016/j.physe.2018.08.020

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A green and low temperature solvothermal synthesis of Cu2ZnSnS4 (CZTS) quantum dots (QDs) from metal chloride salts in absolute ethanol-distil water mixed solvent is reported. Structural, Raman and photoluminescence (PL) analysis reveal kesterite phase of CZTS QDs. The morphological analysis has been done by FESEM, TEM and HRTEM. The average CZTS nanoparticle size is in the range of similar to 1-3 nm equivalents to exciton Bohr radius of CZTS confirming the formation of QDs. The optical absorption spectra of CZTS QDs show a blue shift to higher energy and the optical band gap is estimated to be 1.89eV (larger than bulk CZTS similar to 1.5-1.6eV) due to quantum confinement making deserving for solar cells applications.

引用

页码：19 / 24

页数：6

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