Strong quantum confinement effects in SnS nanocrystals produced by ultrasound-assisted method

被引：25

作者：

Azizian-Kalandaragh, Yashar ^{[1
]}

Khodayari, Ali ^{[2
]}

Zeng, Zaiping ^{[3
]}

Garoufalis, Christos S. ^{[3
,4
]}

Baskoutas, Sotirios ^{[3
]}

Cervera Gontard, Lionel ^{[5
]}

机构：

[1] Univ Mohaghegh Ardabili, Dept Phys, Ardebil, Iran

[2] Univ Mohaghegh Ardabili, Dept Chem, Ardebil, Iran

[3] Univ Patras, Dept Mat Sci, Patras 26504, Greece

[4] Technol Inst Ionian Isl, Dept Environm Technol & Ecol, Zakynthos 29100, Greece

[5] Inst Ciencia Mat Sevilla CSIC, Seville 41092, Spain

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2013年 / 15卷 / 01期

关键词：

Quantum confinement effect; SnS; Semiconductor nanoparticles; X-ray diffraction; Potential morphing method; Ultrasound irradiation; BAND-GAP; THIN-FILMS; OPTICAL-PROPERTIES; VAPOR-DEPOSITION; EXCITON ENERGY; SULFIDE FILMS; TIN; PARTICLE; SEMICONDUCTORS; APPROXIMATION;

D O I：

10.1007/s11051-012-1388-1

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanocrystalline SnS powder has been prepared using tin chloride (SnCl2) as a tin ion source and sodiumsulfide (Na2S) as a sulfur ion source with the help of ultrasound irradiation at room temperature. The as-synthesized SnS nanoparticles were quantitatively analyzed and characterized in terms of their morphological, structural, and optical properties. The detailed structural and optical properties confirmed the orthorhombic SnS structure and a strongly blue shifted direct band gap (1.74 eV), for synthesized nanoparticles. The measured band gap energy of SnS nanoparticles is in a fairly good agreement with the results of theoretical calculations of exciton energy based on the potential morphing method in the Hartree-Fock approximation.

引用

页数：9

共 63 条

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