Nickel content effect on the microstructural, optical and electrical properties of p-type Mn3O4 sprayed thin films

被引：45

作者：

Larbi, T. ^{[1
]}

Lakhdar, M. Haj ^{[1
]}

Amara, A. ^{[1
]}

Ouni, B. ^{[1
]}

Boukhachem, A. ^{[1
]}

Mater, A. ^{[2
]}

Amlouk, M. ^{[1
]}

机构：

[1] Tunis El Manar Univ, Fac Sci Tunis, Unite Phys Dispositifs Semicond, Tunis 2092, Tunisia

[2] Carthage Univ, Fac Sci Bizerte, Phys Mat Lab, Carthage, Tunisia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 626卷

关键词：

Thin films; Optical constants; p-type TCO; AC conductivity; TRANSITION-METAL OXIDE; MANGANESE OXIDES; DOPED MANGANESE; NANOPARTICLES; CONDUCTIVITY; TEMPERATURE; INSTABILITY; STORAGE; LAYERS; PHASE;

D O I：

10.1016/j.jallcom.2014.11.088

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nickel doped Mn3O4 thin films have been prepared by the spray pyrolysis method on glass substrates at 350 degrees C. X- ray diffraction and Raman spectroscopy studies revealed that all deposited films were polycrystalline with tetragonal husmannite Mn3O4 structure. From the reflectance and transmittance optical measurements, it is found that the direct band gap energy exhibits a red shift from 2.23 to 1.87 eV with Ni doping. On the other hand, the Hall measurements show that all films exhibit p-type conductivity and this character is reinforced when Ni content increases. Moreover, AC conductivity measurements lead to a power low (sigma(AC) = A omega(s)). The dependence of both sigma(AC) and s with temperature and frequency agrees well with the CBH model as suggested by Elliott. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：93 / 101

页数：9

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