Reversible Metal Electrodeposition for Modulating Light

用于调制光的可逆金属电镀

• 批准号: 2127308
• 负责人: Michael McGehee
• 金额: $ 48.4万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2127308&HistoricalAwards=false
• 关键词: Reversible; Metal; Electrodeposition; Modulating; Light

Title: Reversible Metal Electrodeposition for Modulating LightThe project team is developing windows whose tinting can be adjusted by applying a voltage between two transparent electrodes to either electroplate metal or remove the metal. These windows could reduce heating, cooling and lighting costs in buildings by 20% and allow people to enjoy the views through their windows even when the window is partially tinted to control glare. This technology is expected to enable people to have better moods and be more productive by optimizing the amount of natural daylight they have. The project team is distributing kits to high school teachers and helping them show students how to make the windows. Through the construction of these dynamic windows, high school students are learning valuable concepts in electrochemistry, optics and architectural engineering with a project that is easy to visualize and has a clear purpose. The adoption of high-performing dynamic windows based on reversible metal electrodeposition will increase the energy efficiency and comfort of buildings. Dynamic windows in buildings result in an average of 20% energy savings and 2% increase in workplace productivity due to improved management of lighting and temperature. The large extinction coefficients and intrinsic robustness of metals make them ideal materials for dynamic thin films. Compared to traditional materials such as electrochromics, reversible metal electrodeposition is an underexplored strategy for constructing switchable thin films. Over the last five years, the McGehee and Barile groups have designed new strategies that enable enhanced control over reversible metal electrodeposition on transparent electrodes. The underlying objective of this research is to determine the physical and chemical parameters that yield rapid and reversible metal electrodeposition on transparent conducting electrodes with tailored optical properties and outstanding durability for optoelectronically switchable thin films. This work is applicable to energy-saving dynamic windows for buildings and automobiles, switchable eyewear, and cameras. The project team’s unique research strategies are enabling the development of dynamic thin films with an unprecedented control over device optical contrast, switching speed, scalability, and cycle life. The work is aiding the progress of metal-based switchable films through the development of alkaline and Zn electrolytes with enhanced voltage stabilities, polymer-modified electrodes that allow for uniform tinting on a large scale, pulsed electrodeposition techniques to control device optics, and systematic durability studies that are enhancing the cycle lives of the devices.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

标题：用于调制光的可逆金属电沉积项目团队正在开发窗口，其颜色可以通过在两个透明电极之间施加电压来电镀金属或去除金属来调整。这些窗户可以将建筑物的供暖、制冷和照明成本降低20%，并允许人们通过窗户欣赏风景，即使窗户部分着色以控制眩光。这项技术有望通过优化自然采光量，让人们心情更好，工作效率更高。该项目团队正在向高中教师分发工具包，并帮助他们向学生展示如何制作窗户。通过这些动态窗口的建设，高中生正在学习电化学、光学和建筑工程方面的有价值的概念，并用一个易于可视化和有明确目的的项目。采用基于可逆金属电沉积的高性能动态窗将提高建筑的能效和舒适性。由于改进了照明和温度管理，建筑物中的动态窗户平均可节省20%的能源，并将工作场所的生产率提高2%。金属的大消光系数和固有的坚固性使其成为动态薄膜的理想材料。与电致变色等传统材料相比，可逆金属电沉积是构建可切换薄膜的一种未被开发的策略。在过去的五年中，McGehee和Barile小组设计了新的策略，增强了对透明电极上可逆金属电沉积的控制。这项研究的基本目标是确定在透明导电电极上快速和可逆地电沉积金属的物理和化学参数，该电极具有定制的光学性能和卓越的光电可切换薄膜的耐用性。这项工作适用于建筑和汽车的节能动态窗户、可切换眼镜和相机。项目组独特的研究策略使动态薄膜的开发具有前所未有的设备光学对比度、切换速度、可扩展性和周期寿命控制。这项工作正在通过开发电压稳定性增强的碱性和锌电解液、允许大规模均匀着色的聚合物修饰电极、控制设备光学的脉冲电沉积技术以及提高设备循环寿命的系统耐用性研究来帮助金属基可切换薄膜的发展。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

A Cost-Effective Optoelectronic Cycler for the Durability Testing of Dynamic Windows: Case Studies with Reversible Metal Electrodeposition Devices

用于动态窗口耐久性测试的经济高效的光电循环仪：可逆金属电镀设备的案例研究

• DOI: 10.1149/1945-7111/ac7d77
• 发表时间: 2022
• 期刊: Journal of The Electrochemical Society
• 影响因子: 3.9
• 作者: Arvisu, Lorenzo S.;Palma, Alexis A.;Islam, Shakirul M.;Barile, Christopher J.
• 通讯作者: Barile, Christopher J.

Transparent, High‐Charge Capacity Metal Mesh Electrode for Reversible Metal Electrodeposition Dynamic Windows with Dark‐State Transmission <0.1%

透明，%20High—Charge%20Capacity%20Metal%20Mesh%20Electrode%20for%20Reversible%20Metal%20Electrodeposition%20Dynamic%20Windows%20with%20Dark—State%20Transmission%20<0.1%

• DOI: 10.1002/aenm.202200854
• 发表时间: 2022
• 期刊: Advanced Energy Materials
• 影响因子: 27.8
• 作者: Yeang, Andrew L.;Hernandez, Tyler S.;Strand, Michael T.;Slotcavage, Daniel J.;Abraham, Eldho;Smalyukh, Ivan I.;Barile, Christopher J.;McGehee, Michael D.
• 通讯作者: McGehee, Michael D.

Gel polymer electrolyte for reversible metal electrodeposition dynamic windows enables dual-working electrodes for faster switching and reflectivity control

• DOI: 10.3389/fnano.2022.1083247
• 发表时间: 2022-11-28
• 期刊: FRONTIERS IN NANOTECHNOLOGY
• 作者: Cai, Yuchun;Hernandez, Tyler S.;McGehee, Michael D.
• 通讯作者: McGehee, Michael D.

Bi-Cu Electrolytes with Aminocarboxylate Chelators for Reversible Metal Electrodeposition at High pH for Dynamic Windows

具有氨基羧酸螯合剂的 Bi-Cu 电解质，用于在高 pH 值下实现动态窗口的可逆金属电沉积

• DOI: 10.1149/1945-7111/acdc57
• 发表时间: 2023
• 期刊: Journal of The Electrochemical Society
• 影响因子: 3.9
• 作者: Li, Judy Y.;Leahy, Madeline J.;Bhoumik, Nikhil C.;Miller, Darren D.;Madu, Desmond C.;Barile, Christopher J.
• 通讯作者: Barile, Christopher J.

Investigating Formate, Sulfate, and Halide Anions in Reversible Zinc Electrodeposition Dynamic Windows

研究可逆锌电沉积动态窗口中的甲酸根、硫酸根和卤化物阴离子

• DOI: 10.1021/acsami.2c14893
• 发表时间: 2022
• 期刊: ACS Applied Materials & Interfaces
• 影响因子: 9.5
• 作者: Madu, Desmond C.;Lilo, Micah V.;Thompson, Andrew A.;Pan, Hanqing;McGehee, Michael D.;Barile, Christopher J.
• 通讯作者: Barile, Christopher J.