JIANG Yihang; CAO Fenghua; LI Haomiao; NIE Yongjie; LI Guochang; WEI Yanhui; LU Guanghao; LI Shengtao; ZHU Yuanwei

doi:10.7498/aps.74.20241663

Abstract

In recent years, electrochromic materials have been extensively utilized in smart windows, displays, and dimmable devices. WO₃, as a typical electrochromic material has received significant attention. Existing researches indicate that the concentration and distribution of oxygen vacancies in WO₃ are both important in determining electrochromic effect. However, it has been reported that traditional preparation methods such as annealing can significantly reduce the ability to modulate the crystallinity and optical performance. Hence, proposing a novel approach to enhance the electrochromic properties of WO₃ films holds important research significance and application prospects. In this work, the electrochromic properties of WO₃ thin films are enhanced by increasing the oxygen vacancy concentration and forming its gradient distribution on the surface through plasma treatment. Firstly, the oxygen vacancy concentration and distribution of the film are optimized by regulating the power and duration of the plasma treatment. Secondly, the structure and optical properties of the plasma treated WO₃ films are analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-Vis spectroscopy. Finally, the stability and response speed of each film during the electrochromic cycle are evaluated via electrochemical tests. Through plasma treatment, the concentrations of oxygen vacancies on the surfaces of WO₃ films are all significantly increased, and a gradient distribution is formed, which is conducive to enhancing the ability to inject and extract electrons. The treated WO₃ films demonstrate better electrochemical stability and chromic stability during the electrochromic cycle, and their transparencies and electrochromic response speeds are also significantly enhanced. Additionally, by increasing the concentration of oxygen vacancies through plasma treatment, the band gap of the film decreases and the electrical conductivity increases, which further validates the effectiveness of modulating concentration of oxygen vacancies on the electrical conductivity of WO₃ film. Overall, these results indicate that plasma treatment is an emerging method of significantly improving the electrochromic properties of WO₃ films.

Keywords:

Authors and contacts

Corresponding author: LI Shengtao, zhuyuanwei@xjtu.edu.cn ; ZHU Yuanwei, sli@xjtu.edu.cn

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 52477028), the Open Research Fund of State Key Laboratory of Polymer Physics and Chemistry, China (Grant No. PPCL2023-13), the Youth Fund of State Key Laboratory of Electrical Insulation and Power Equipment, China (Grant No. EIPE23407), and the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant No. sxzy012023180).

FullText HTML

References

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]

Cited By

DownLoad: Full-Size Img PowerPoint

样品处理方式	电导率/(10^–3 S·m^–1)
原始状态	8.27
退火处理	25.30
等离子体处理	10.80

DownLoad: CSV

等离子体放电功率/W	改性时间/min	O/W原子比	光学透过率/%
5	10	2.86	84.5
10	20	2.75	81.1
20	30	2.58	74.2
5	20	2.83	82.8
10	30	2.71	78.4
20	10	2.68	79.7
5	30	2.80	80.6
10	10	2.79	83.2
20	20	2.63	76.3

DownLoad: CSV

map

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]

[1]	Wang Yu-Xiao, Cheng Ze-Shuai, Jiang Ke-Yang, Wei Lin-Yang, Li Xiu-Ming. Performance of adjustable multilayer film based on radiation cooling and electrochromism. Acta Physica Sinica, 2024, 73(21): 214401. doi: 10.7498/aps.73.20240863
[2]	Zhang Mao-Lin, Ma Wan-Yu, Wang Lei, Liu Zeng, Yang Li-Li, Li Shan, Tang Wei-Hua, Guo Yu-Feng. Investigation of high-temperature performance of WO₃/β-Ga₂O₃ heterojunction deep-ultraviolet photodetectors. Acta Physica Sinica, 2023, 72(16): 160201. doi: 10.7498/aps.72.20230638
[3]	Zhang Xing-Wen, He Chao-Tao, Li Xiu-Lin, Qiu Xiao-Yan, Zhang Yun, Chen Peng. Resistance switching effect regulated by magnetic field in Ni/ZnO/BiFeO₃/ZnO multilayers. Acta Physica Sinica, 2022, 71(18): 187303. doi: 10.7498/aps.71.20220609
[4]	Shao Guang-Wei, Yu Rui, Fu Ting, Chen Nan-Liang, Liu Xiang-Yang. Growth behavior of WO₃crystal topological structure and its electrochromic properties. Acta Physica Sinica, 2022, 71(2): 028201. doi: 10.7498/aps.71.20211555
[5]	Wang Zhi-Qing, Yao Xiao-Ping, Shen Jie, Zhou Jing, Chen Wen, Wu Zhi. Micromechanism of ferroelectric fatigue and enhancement of fatigue resistance of lead zirconate titanate thin films. Acta Physica Sinica, 2021, 70(14): 146302. doi: 10.7498/aps.70.20202196
[6]	Tang Hui, Tang Xin-Gui, Jiang Yan-Ping, Liu Qiu-Xiang, Li Wen-Hua. Oxygen vacancy effect on ionic conductivity and relaxation phenomenon of Sr_xBa_1–xNb₂O₆ ceramics. Acta Physica Sinica, 2019, 68(22): 227701. doi: 10.7498/aps.68.20190562
[7]	Chen Ya-Qi, Xu Hua-Kai, Tang Dong-Sheng, Yu Fang, Lei Le, Ouyang Gang. Electrical transport properties and related mechanism of single SnO₂ nanowire device. Acta Physica Sinica, 2018, 67(24): 246801. doi: 10.7498/aps.67.20181402
[8]	Fang Cheng, Wang Hong, Shi Si-Qi. Research progress of electrochromic performances of WO3. Acta Physica Sinica, 2016, 65(16): 168201. doi: 10.7498/aps.65.168201
[9]	Gong Yu, Chen Bai-Hua, Xiong Liang-Ping, Gu Mei, Xiong Jie, Gao Xiao-Ling, Luo Yang-Ming, Hu Sheng, Wang Yu-Hua. Effect of oxygen vacancies on the fluorescence and phosphorescence properties of Ca5MgSi3O12：Eu2+, Dy3+. Acta Physica Sinica, 2013, 62(15): 153201. doi: 10.7498/aps.62.153201
[10]	Yang Chang-Ping, Li Min-Yi, Song Xue-Ping, Xiao Hai-Bo, Xu Ling-Fang. Effect of oxygen content on giant dielectric constant and dielectric process in CaCu3Ti4O12. Acta Physica Sinica, 2012, 61(19): 197702. doi: 10.7498/aps.61.197702
[11]	Ouyang Jian-Ming, Shao Fu-Qiu, Zou De-Bin. Numerical simulation of negative oxygen ion generation and temporal evolution in atmospheric plasma. Acta Physica Sinica, 2011, 60(11): 110209. doi: 10.7498/aps.60.110209
[12]	Du Hong-Liang, He Li-Ming, Lan Yu-Dan, Wang Feng. Influence of reduced electric field on the evolvement characteristics of plasma under conditions of N2/O2 discharge. Acta Physica Sinica, 2011, 60(11): 115201. doi: 10.7498/aps.60.115201
[13]	Yu Song-Nan, Wu Han-Hua, Chen Gen-Yu, Yuan Xin, Li Yue. Effect of Al(OH)3 sol concentration on characteristics of microarc oxidation coatings of titanium alloy. Acta Physica Sinica, 2011, 60(2): 028104. doi: 10.7498/aps.60.028104
[14]	Liu Yan-Yan, Liu Fa-Min, Shi Xia, Ding Peng, Zhou Chuan-Cang. Preparation, structure and ferromagnetic properties of perovskite BaFeO3 nanocrystals. Acta Physica Sinica, 2008, 57(11): 7274-7278. doi: 10.7498/aps.57.7274
[15]	Zhao Su-Chuan, Li Guo-Rong, Zhang Li-Na, Wang Tian-Bao, Ding Ai-Li. Dielectric properties of Na0.25K0.25Bi0.5TiO3 lead-free ceramics. Acta Physica Sinica, 2006, 55(7): 3711-3715. doi: 10.7498/aps.55.3711
[16]	Li Bao-Shan, Zhu Zhi-Gang, Li Guo-Rong, Yin Qing-Rui, Ding Ai-Li. Frequency and temperature dependence of the hysteresis loop in PMnN-PZT ceramics. Acta Physica Sinica, 2005, 54(2): 939-943. doi: 10.7498/aps.54.939
[17]	Tang Chang-Jian, Gong Yu-Bin, Yang Yu-Zhi. Dielectric tensor of 2D relativistic motional plasma. Acta Physica Sinica, 2004, 53(4): 1145-1149. doi: 10.7498/aps.53.1145
[18]	Yang Xin-Sheng, Wang Yu, Dong Liang, Zhang Feng, Qi Li-Zhen. Electrochromic effect of nanostructured WO3 bulk. Acta Physica Sinica, 2004, 53(8): 2724-2727. doi: 10.7498/aps.53.2724
[19]	Dai Fu-Ping, Lü Shu-Yuan, Feng Bo-Xue, Jiang Sheng-Rui, Chen Chong. Study on electrochromic performances of amorphous WO3 films. Acta Physica Sinica, 2003, 52(4): 1003-1008. doi: 10.7498/aps.52.1003
[20]	FENG BO-XUE, XIE LIANG, WANG JUN, JIANG SHENG-RUI, CHEN GUANG-HUA. STUDY ON ELECTROCHROMIC PERFORMANCES AND MECHANISM OF MICROCRYSTAL NiOxHy THIN FILMS FABRICATED BY R.F.DEPOSITION. Acta Physica Sinica, 2000, 49(10): 2066-2071. doi: 10.7498/aps.49.2066

Catalog

Vol. 74, Issue 5 - 2025-03-05

Metrics

Abstract views: 968
PDF Downloads: 34
Cited By: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

Search

Article

留言板

Abstract

Authors and contacts

Corresponding author: LI Shengtao, zhuyuanwei@xjtu.edu.cn ; ZHU Yuanwei, sli@xjtu.edu.cn

FullText HTML

References

Cited By

Catalog

Metrics

Authors

Referees

About Journal

About

Search

Article

留言板

Abstract

Authors and contacts

Corresponding author: LI Shengtao, zhuyuanwei@xjtu.edu.cn ; ZHU Yuanwei, sli@xjtu.edu.cn

FullText HTML

References

Cited By

Catalog

Metrics

Publishing process

Authors

Referees

About Journal

About