Preparation of CoS2/WO3 thin films for the construction of electrochromic devices

被引：17

作者：

Ahmad, Khursheed ^{[1
]}

Shinde, Mahesh A. ^{[1
,2
,3
]}

Song, Gihwan ^{[1
]}

Kim, Haekyoung ^{[1
]}

机构：

[1] Yeungnam Univ, Sch Mat Sci & Engn, Gyongsan 38541, South Korea

[2] North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA

[3] North Carolina State Univ, Organ & Carbon Elect Labs ORaCEL, Raleigh, NC 27695 USA

来源：

CERAMICS INTERNATIONAL | 2023年 / 49卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

Cobalt disulfide; Tungsten oxide; Electrochromic device; Smart window; NANOFLAKE ARRAYS; FABRICATION; NANOCOMPOSITE;

D O I：

10.1016/j.ceramint.2022.11.195

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this study, we report CoS2/WO3 (CSW) composites as electrochromic materials for applications in smart windows. A hydrothermal approach was used to obtain CoS2, whereas WO3 was prepared using the sol-gel method. We prepared the CSW composites with various weight ratios of CoS2 (0.2, 0.5, and 2.0 wt%) by ultrasonication dispersion. The physical and chemical properties of the CSW composites (CSW 0.2, CSW 0.5, and CSW 2.0) were examined via X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). Additionally, the WO3 and CSW based ECDs were fabricated using indium-tin oxide (ITO) substrate. The CSW 0.5 based ECDs exhibited excellent coloration efficiency of 64.5 cm2C-1 and an optical contrast of 73.31%. The enhanced coloration efficiency and optical contrast may be attributed to synergistic interactions between CoS2 and WO3. The ECDs also exhibited good stability up to 10,000 cycles.

引用

页码：10119 / 10128

页数：10

共 37 条

[1] Design and fabrication of MoSe2/WO3 thin films for the construction of electrochromic devices on indium tin oxide based glass and flexible substrates [J].