Transparent, High‐Charge Capacity Metal Mesh Electrode for Reversible Metal Electrodeposition Dynamic Windows with Dark‐State Transmission &lt;0.1% (Adv. Energy Mater. 32/2022)

Yeang, Andrew L.; Hernandez, Tyler S.; Strand, Michael T.; Slotcavage, Daniel J.; Abraham, Eldho; Smalyukh, Ivan I.; Barile, Christopher J.; McGehee, Michael D.

doi:10.1002/aenm.202270138

Cited by 4 publications

(8 citation statements)

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“…In addition to electrochemical performance modulation, durability of dynamic windows under harsh environment can also be enhanced by electrolyte engineering. Antifreezing electrolyte is needed for low-temperature operation due to the possible glass breakage caused by electrolyte [92] Copyright 2022, Wiley-VCH. c) Schematic of N 5 -benzyl-1H-1,2,4-triazole-3,5-diamine-and LiNiO x -modified counter electrode that ensures good durability in CuBi-based dynamic window, and d) photographs of the assembled 25 cm 2 flexible dynamic window and 100 cm 2 dynamic window.…”

Section: Dual-metal-ions-based Rme Ecdsmentioning

confidence: 99%

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The Progress and Outlook of Multivalent‐Ion‐Based Electrochromism

Xu,

Chen,

Ding

et al. 2023

Small Science

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Electrochromic technology has witnessed numerous achievements in recent years both in research and commercialization. Electrochromic devices (ECD) based on different electrochemical mechanism have been developed for various applications, ranging from smart windows, thermal management, rear views, display, camouflage, etc. Compared to conventional ECDs based on monovalent charge carriers (e.g., H+, Li+), incorporating multivalent ions with rich electrochemistry, high charge density, and small ionic radius has opened new possibilities in novel ECDs. The merits of multivalent ions are harvested in ECDs activated by ion intercalation/deintercalation (e.g., Zn2+, Al3+, Ca2+, Mg2+), reversible metal electrodeposition (e.g., Cu2+, Bi3+, Zn2+), and dynamic metal–ligand interactions (e.g., Cu2+, Fe2+). Herein, the working mechanism, characteristics, and up‐to‐date achievements in multivalent ECDs are summarized and classified accordingly. The applications of multivalent ECDs for smart windows, energy storage, thermal management, multicolor displays, etc., are exemplified. The issues and challenges encountered by multivalent ECDs are emphasized, and the future directions for developing multivalent ECDs are also summarized. The aim of this review is to inspire more efforts in the exploration and the proliferation of multivalent ECDs.

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Section: Dual-metal-ions-based Rme Ecdsmentioning

confidence: 99%

“…a) Metal mesh with various geometry, b) areal current density vs time of Pt-ITO, Cu mesh, and Au-coated stainless-steel mesh for metal deposition induced at À0.7 V (vs Ag/AgCl) in Cu-Bi electrolyte. (a,b) Reproduced with permission [92]. Copyright 2022, Wiley-VCH.…”

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confidence: 99%

The Progress and Outlook of Multivalent‐Ion‐Based Electrochromism

Xu,

Chen,

Ding

et al. 2023

Small Science

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“…Electrochromic technologies offering tunable light transparency have attained considerable attention for dynamic light control applications. [ 1–6 ] Motivated by the optical properties of reversible light transmission and absorption wavelength tunability, electrochromic materials have experienced emergence in their utilization in energy efficient “green building” windows and transparent optical‐electronic devices. [ 7–12 ] The reversible light transmission is induced by electrochemical oxidation and reduction reactions of the electrochromic materials which enhances the optical absorption of the electrochromic material.…”

Section: Introductionmentioning

confidence: 99%

A Dual‐Mode Electrochromic Platform Integrating Zinc Anode‐Based and Rocking‐Chair Electrochromic Devices

Zhang

Elezzabi

2023

Adv Funct Materials

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The complementary electrochromic device, where the optical transmittance changes upon the flow of cations back and forth between anodic and cathodic electrodes, operates in a rocking-chair fashion if it can inherently self-discharge. Herein, the first demonstration of a dual-mode electrochromic platform having self-coloring and self-bleaching characteristics is reported, which is realized by sandwiching zinc metal within a newly-designed Prussian blue (PB)-WO 3 rocking-chair type electrochromic device. It is demonstrated that the redox potential differences between the zinc metal and the WO 3 /PB electrodes endow the self-color-switching of these electrodes. By employing a hybrid electrolyte of Zn 2+ /K + , it is further shown that the colored PB-WO 3 rocking-chair device is capable of spontaneously bleaching when the anodic and cathodic electrodes are coupled. This dual-mode light-control strategy enables the electrochromic devices to exhibit four distinct optical states with the highest optical contrast of 72.6% and fast switching times (<5 s for the bleaching/coloration processes). Furthermore, the built-in voltage of the dualmode electrochromic devices not only promotes energy efficiency, but also augments the bistability of the devices. It is envisioned that the broad implication of the present platform is in the development of self-powered smart windows, colorful displays, optoelectronic switches, and optical sensors.

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“…[ 22 ] In this manuscript, we focus on the mechanical reliability of these electroplated metal films. We show that windows made using the same Cu–Bi perchlorate electrolyte described in our recent publications [ 19,22 ] have a mechanical resting stability problem, whereby the Cu–Bi metal films crack and delaminate after 12 h of resting. We perform stress measurements and take microscope images for films of different metals (Cu–Bi, Cu, and Bi).…”

Section: Introductionmentioning

confidence: 99%

“…[ 19 ] We also discussed the design principles of the metal mesh counter electrode to enable durable privacy cycling. [ 22 ] In this manuscript, we focus on the mechanical reliability of these electroplated metal films. We show that windows made using the same Cu–Bi perchlorate electrolyte described in our recent publications [ 19,22 ] have a mechanical resting stability problem, whereby the Cu–Bi metal films crack and delaminate after 12 h of resting.…”

Section: Introductionmentioning

confidence: 99%

Understanding and Improving Mechanical Stability in Electrodeposited Cu and Bi for Dynamic Windows Based on Reversible Metal Electrodeposition

McAndrews

Yeang

Cai

et al. 2022

Advanced Energy Materials

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Zn) to dynamic glazings with applications for thermal emissivity (e.g., Ag) or windows (e.g., Cu, Bi, Ag, and Zn). In each of these systems, a layer of metal is electroplated for the system's designed purpose: energy storage for batteries, [1][2][3][4] infrared light modulation for dynamic thermal emissivity, [5] and visible light modulation for dynamic windows. [6][7][8] The mechanical stability of the electrodeposited films is paramount for the devices' durability in practical applications. Mechanical failure can occur in the form of detached dendrites, "dead" metal, pits, and cracked or delaminated films, which usually result in loss of active material leading to device failure. The mechanics of electrodeposited Li has been extensively studied for Li metal batteries. [9,10] Dynamic windows allow for electronic and user control over light and

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Transparent, High‐Charge Capacity Metal Mesh Electrode for Reversible Metal Electrodeposition Dynamic Windows with Dark‐State Transmission <0.1% (Adv. Energy Mater. 32/2022)

Cited by 4 publications

References 0 publications

The Progress and Outlook of Multivalent‐Ion‐Based Electrochromism

The Progress and Outlook of Multivalent‐Ion‐Based Electrochromism

A Dual‐Mode Electrochromic Platform Integrating Zinc Anode‐Based and Rocking‐Chair Electrochromic Devices

Understanding and Improving Mechanical Stability in Electrodeposited Cu and Bi for Dynamic Windows Based on Reversible Metal Electrodeposition

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