Modeling the optical properties of WO3 and WO3-SiO2 thin films

被引：17

作者：

Saygin-Hinczewski, D. ^{[2
]}

Hinczewski, M. ^{[3
]}

Sorar, I. ^{[2
]}

Tepehan, F. Z. ^{[2
]}

Tepehan, G. G. ^{[1
]}

机构：

[1] Kadir Has Univ, Fac Arts & Sci, TR-34083 Istanbul, Turkey

[2] Istanbul Tech Univ, Dept Phys, TR-34469 Istanbul, Turkey

[3] TUBITAK Bosphorus Univ, Feza Gursey Res Inst, TR-34680 Istanbul, Turkey

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2008年 / 92卷 / 08期

关键词：

sol-gel; WO3; WO3-SiO2; double Tauc-Lorentz model; Urbach tail; optical properties; surface morphology;

D O I：

10.1016/j.solmat.2008.01.021

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The optical properties and surface morphology of sol-gel spin coated WO3 and WO3-SiO2 composite films annealed at 250 and 400 degrees C are investigated. For the purpose of extracting the optical parameters of the films, a novel form for the dielectric function is introduced, consisting of two Tauc-Lorentz oscillators and an Urbach tail component, which is suited for amorphous multi-transition materials with substantial subgap absorption. The evolution of the refractive indices, transmittances, and band gaps with doping is marked by sizable shifts at 2.0-2.5% SiO2 doping for the 250 degrees C films, and 4.0-4.5% doping for the 400 degrees C films. In addition, pronounced changes in the surface roughness of the films occur at these doping values. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：821 / 829

页数：9

共 50 条

[21] Photochromism in WO3 thin films
Gavrilyuk, AI
ELECTROCHIMICA ACTA, 1999, 44 (18) : 3027 - 3037
[22] Porous nanocrystalline WO3 thin films: fabrication, electrical and optical properties
Wang, Zhiwei
Su, Jiangbin
Qi, Hao
Pan, Peng
Jiang, Meiping
SURFACE INNOVATIONS, 2021, 9 (04) : 214 - 221
[23] Optical properties of Li+ doped electrochromic WO3 thin films
Porqueras, I
Bertran, E
THIN SOLID FILMS, 2000, 377 : 8 - 13
[24] Optical anisotropy of WO3 films
Perez, MA
Teijelo, ML
PROCEEDINGS OF THE SYMPOSIUM ON PASSIVITY AND ITS BREAKDOWN, 1998, 97 (26): : 404 - 410
[25] Structural, optical, and surface properties of WO3 thin films for solar cells
Simchi, H.
McCandless, B. E.
Meng, T.
Shafarman, W. N.
JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 617 : 609 - 615
[26] Optimization of Optical Modulation in Amorphous WO3 Thin Films
Jiangbin Su
Xiumei Zhu
Longlong Chen
Yu Liu
Hao Qi
Zuming He
Bin Tang
Electronic Materials Letters, 2024, 20 : 131 - 139
[27] The effect of WO3/TeO2 molar concentration on the structural, optical, and thermoelectric properties of WO3–TeO2 binary thin films
A. Shirpay
M. M. Bagheri Mohagheghi
Journal of Materials Science: Materials in Electronics, 2021, 32 : 1766 - 1777
[28] Photochromic properties of WO3 and WO3:X (X=Ti, Nb, Ta and Zr) thin films
Avellaneda, CO
Bulhoes, LOS
SOLID STATE IONICS, 2003, 165 (1-4) : 117 - 121
[29] Optimization of Optical Modulation in Amorphous WO3 Thin Films
Su, Jiangbin
Zhu, Xiumei
Chen, Longlong
Liu, Yu
Qi, Hao
He, Zuming
Tang, Bin
ELECTRONIC MATERIALS LETTERS, 2024, 20 (02) : 131 - 139
[30] THE OPTICAL DISPERSION PARAMETERS IN WO3 THIN-FILMS
TOYODA, T
JOURNAL OF APPLIED PHYSICS, 1988, 63 (10) : 5166 - 5168

← 1 2 3 4 5 →