Robust Trioptical-State Electrochromic Energy Storage Device Enabled by Reversible Metal Electrodeposition

Eh, Alice Lee‐Sie; Chen, Jingwei; Zhou, Xinran; Ciou, Jing‐Hao; Lee, Pooi See

doi:10.1021/acsenergylett.1c01632

Cited by 49 publications

(36 citation statements)

References 53 publications

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“…The Zn-based and Al-based energy storage devices can perform electrochemical energy storage conversion in air, and most of the Zn-based and Albased electrolytes are colorless and do not cause color interference (Ji et al, 2020;Liu et al, 2022). Hence, organic electrochromic materials have attracted much attention in Zn-based and Al-based energy storage devices (Huang et al, 2015;Mo et al, 2019;Eh et al, 2021). More importantly, when electrochromic materials are applied to energy storage, their electrochromic and electrochemical performance stability will be affected.…”

Section: Electrochromic Energy Storage Devicesmentioning

confidence: 99%

Organic electrochromic energy storage materials and device design

et al. 2022

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While not affecting electrochemical performance of energy storage devices, integrating multi-functional properties such as electrochromic functions into energy storage devices can effectively promote the development of multifunctional devices. Compared with inorganic electrochromic materials, organic materials possess the significant advantages of facile preparation, low cost, and large color contrast. Specifically, most polymer materials show excellent electrochemical properties, which can be widely used in the design and development of energy storage devices. In this article, we focus on the application of organic electrochromic materials in energy storage devices. The working mechanisms, electrochemical performance of different types of organics as well as the shortcomings of organic electrochromic materials in related devices are discussed in detail.

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Section: Electrochromic Energy Storage Devicesmentioning

confidence: 99%

Organic electrochromic energy storage materials and device design

et al. 2022

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“…[ 1–3 ] Different from conventional electrochromic devices, of which the visible color change or infrared emissivity change depends on the intercalation/deintercalation of ions into electrochromic films, the change in the optical states of RMEDs is based on the reversible electrodeposition and dissolution of metal. [ 4 ] Among various types of RMEDs, the reversible silver (Ag) electrodeposition device (RSED) can show a near‐100%‐reflectivity mirror state, [ 5 ] and the RSED can display the three primary colors (cyan, magenta, and yellow) or exhibit large infrared emissivity tunability in wide infrared waveband in both infrared atmospheric windows. [ 2,6–8 ] These unique performances showed the great potential of RSED for smart windows, [ 9 ] information displays, [ 10 ] thermal camouflage, [ 2 ] and thermal management.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] Different from conventional electrochromic devices, of which the visible color change or infrared emissivity change depends on the intercalation/ deintercalation of ions into electrochromic films, the change in the optical states of RMEDs is based on the reversible electrodeposition and dissolution of metal. [4] Among various types of RMEDs, the reversible silver (Ag) electrodeposition device (RSED) can show a near-100%-reflectivity mirror state, [5] and the RSED can display the three primary colors (cyan, magenta, is no more than 2 h and new problems such as lower switching speed, smaller transmitivity change, and higher costs for device fabrication arise. Besides, it was also proposed to replace the Cu 2+ ions with a mediator layer, such as WO 3 [17] and Prussian Blue, [13] which is fixed at the counter electrode so that it will not make any contact with the Ag layer deposited on the working electrode.…”

Section: Introductionmentioning

confidence: 99%

A Bistable Variable Infrared Emissivity Device Based on Reversible Silver Electrodeposition

Tao

Liu

et al. 2022

Adv Funct Materials

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Reversible silver electrodeposition (RSE) can dynamically modulate visible light and infrared radiation through the reversible electrodeposition and dissolution of silver layer. However, the RSE device with bistability better than 2 h has not been reported, because the deposited silver layer may dissolve automatically without driving voltage. Here, a variable infrared emissivity device based on RSE with 24 h excellent bistability is demonstrated. A silver layer fixed at the counter electrode is used as the charge mediator, which reforms the electrochemical reactions of the counter electrode and is the key for obtaining bistability. Effects of electrolyte composition and driving voltage on the bistability are studied, and the driving voltage affects the bistability of RSE devices. This RSE device can be enlarged to 5 × 5 cm 2 with uniform emissivity change of 0.48 in 2.5-25 µm using silicon wafer as the infrared transparent working electrode substrate, and display discontinuous thermal patterns through incorporating a dielectric pattern layer. The cyclability and device failure mechanism is analyzed. With the excellent bistability, the proposed RSE devices provide great application prospects in the fields of dynamic infrared information display, adaptive infrared camouflage, and smart thermal management.

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“…Electrochromism is the phenomenon where the light transmission and absorption of a material can be readily and reversibly controlled upon the application of a voltage bias. [1][2][3][4][5] The reversible color change is induced by electrochemical oxidation and reduction reactions. Several electrochromic devices have been developed for various commercial applications, such as optical sensors, [6] electronic tags, [7] color displays, [8] mirrors, [9] camouflage, [10] and smart windows.…”

Section: Introductionmentioning

confidence: 99%

Nanoscale Manipulating Silver Adatoms for Aqueous Plasmonic Electrochromic Devices

Zhang

Elezzabi

2022

Adv Materials Inter

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far the most intriguing. Through electrochemical control from the application of voltage stimuli, dynamic color displays, generated by noble metal nanoparticles (e.g., Ag, Au), have been realized in a variety of platforms. [14][15][16][17] This class of electrochromic devices not only can switch between multiple colors but also retains their colored states without the need for external electrical power. [18][19][20][21] While the electrochromic displays, based on organic molecules, [22][23] polymers, [24][25][26] or transition metal oxides, [27][28][29][30] have demonstrated multicolor characteristics, these devices exhibit inferior cycling stability compared to reversible metal deposition (RME). [31][32][33] Such a limitation hindered their practical applications and their potential commercialization. With the advancement of nanofabrication processes of various plasmonic metal nanostructures, the coming age of electrochromic RME plasmonic high-resolution color displays is appearing on the near horizon. [34][35][36] Recently, Ag nanoparticles, having tunable nano structures, along with their localized surface plasmon resonance (LSPR), have been investigated for multicolor electrochromic films. [17][18]37] Compared to the nonmetallic-based electrochromic materials, whose optical indices are altered through ions intercalation or redox reactions, [38][39][40] various LSPR color bands are tuned by manipulating the size and shape of the Ag nanoparticles. [19,41] However, to realize stable and reversible Ag nanoparticles electrodeposition, these LSPR-based electrochromic displays are administered in nonaqueous electrolyte environments that require high electrodeposition voltage. [17][18][19] As such, this platform is far from being energy-efficient and reliable, especially when considering large-area displays. [42] Notably, for a wide scope of applications, it is highly desirable to have a dynamically reconfigurable plasmochromic device operating at a safe low voltage window (i.e., aqueous electrolyte compatible platform) [43][44] while also offering precise manipulation of Ag adatoms to prevent nucleation and growth on the displaying substrate.To circumvent these challenges, an underpotential metal electrodeposition process (UPMD) needs to be explored as a candidate to precisely manipulate the growth of Ag atoms at the interface between a substrate and the electrolyte. The UPMD process occurs as a result of the strong adatom/substrate adsorption between the electrodeposited metal and the solid substrate. [45] The reduction of a metal cation can be achieved Plasmonic colors are attractive building blocks for flat panel displays due to their broad color gamut and unprecedented subwavelength resolution. The exploration of reversible silver (Ag) electrodeposition for switchable plasmonic colors is considered as a promising strategy toward dynamically reconfigurable color displays. To date, the current reversible Ag electrodeposition-based electrochromic devices are energy-inefficient as the platforms are realized in nonaq...

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Robust Trioptical-State Electrochromic Energy Storage Device Enabled by Reversible Metal Electrodeposition

Cited by 49 publications

References 53 publications

Organic electrochromic energy storage materials and device design

Organic electrochromic energy storage materials and device design

A Bistable Variable Infrared Emissivity Device Based on Reversible Silver Electrodeposition

Nanoscale Manipulating Silver Adatoms for Aqueous Plasmonic Electrochromic Devices

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