首页|On-demand engineerable visible spectrum by fine control of electrochemical reactions

On-demand engineerable visible spectrum by fine control of electrochemical reactions

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Tunability of optical performance is one of the key technologies for adaptive optoelectronic applications,such as camouflage clothing,displays,and infrared shielding.High-precision spectral tunability is of great importance for some special applications with on-demand adaptability but remains challenging.Here we demonstrate a galvanostatic control strategy to achieve this goal,relying on the finding of the quantitative correlation between optical properties and electrochemical reactions within materials.An electrochromic electro-optical efficiency index is established to optically fingerprint and precisely identify electrochemical redox reactions in the electrochromic device.Consequently,the charge-transfer process during galvanostatic electrochemical reaction can be quantitatively regulated,permitting precise control over the final optical performance and on-demand adaptability of electrochromic devices as evidenced by an ultralow deviation of＜3.0％.These findings not only provide opportunities for future adaptive optoelectronic applications with strict demand on precise spectral tunability but also will promote in situ quantitative research in a wide range of spectroelectrochemistry,electrochemical energy storage,electrocatalysis,and material chemistry.

electrochromicsfine controlspectral tunabilityhigh precisiongalvanostatic control

Qirong Liu、Lei Liu、Yongping Zheng、Min Li、Baofu Ding、Xungang Diao、Hui-Ming Cheng、Yongbing Tang

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Advanced Energy Storage Technology Research Center,Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China

Institute of Technology for Carbon Neutrality,Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China

School of Energy and Power Engineering,North University of China,Taiyuan 030051,China

School of Resource,Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan 411201,China

School of Energy and Power Engineering,Beihang University,Beijing 100191,China

Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality,Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China

Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China

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国家重点研发计划国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金国家自然科学基金深圳市科技计划深圳市科技计划深圳市科技计划Guangdong Basic and Applied Basic Research FoundationFundamental Research Program of Shanxi Province

2022YFB24026001190437952125105519723295206116048452273311T229369362205311JCYJ20210324101203009JCYJ20200109115624923JSGG202208311040040082022A1515010937202103021223177

2024

10.1093/nsr/nwad323

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ISSN：
年,卷(期)：2024.11(3)
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