Effect of solution molarity on optical dispersion energy parameters and electrochromic performance of Co3O4 films

被引：55
作者：
Dhas, C. Ravi [1 ]
Venkatesh, R. [1 ]
Sivakumar, R. [2 ]
Raj, A. Moses Ezhil [3 ]
Sanjeeviraja, C. [4 ]
机构：
[1] Bishop Heber Coll Autonomous, PG & Res Dept Phys, Tiruchirappalli 620017, Tamil Nadu, India
[2] Alagappa Univ, Directorate Distance Educ, Karaikkudi 630004, Tamil Nadu, India
[3] Scott Christian Coll Autonomous, Dept Phys, Nagercoil 629003, India
[4] Alagappa Chettiar Coll Engn & Technol, Dept Phys, Karaikkudi 630004, Tamil Nadu, India
来源：
OPTICAL MATERIALS | 2017年 / 72卷
关键词：
Cobalt oxide; Nanostructures; Optical dispersion parameters; Electrochromism; OXIDE THIN-FILMS; SPRAY-PYROLYSIS; NANOCRYSTALLINE CO3O4; THICKNESS; SPECTROSCOPY; TEMPERATURE; CONSTANTS; PRECURSOR; BEHAVIOR;
D O I：
10.1016/j.optmat.2017.07.026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Co3O4 films were deposited on glass and FTO (F:SnO2) substrates by different solution molarities (0.05-0.20 M) through nebulizer spray technique. The crystalline quality of the films was evaluated by X-ray diffraction. The morphological variation of Co3O4 films for different solution concentration was observed from scanning electron microscopy. Optical constants (n and k) and dispersion energy parameters were calculated by fitting the transmittance curves using Swanepoel envelope method. The electrical parameters such as sheet resistance and activation energy were estimated using four probe method. The electrochromic performance of the films was analyzed by electrochemical measurements such as cyclic voltammetry, chronoamperometry, chronocoulometry and optical contrast studies. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：717 / 729
页数：13
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