29‐3: <i>Late‐News Paper:</i> Improvement of Chroma and Theoretical Analysis of Silver Deposition‐Based Multicolor Electrochromic Device

light-emitting devices. Chromogenic materials and devices are widely used in smart windows and paper-like displays, particularly electrochromic materials, which can be actively and reliably controlled because they only respond to electrical stimuli. [11][12][13][14][15] Reversible metal electrodeposition device (RMED) is a novel type of electrochromic devices that can switch from transparent to opaque state by the electrodeposition of a metal layer onto the transparent electrode, and switch back to transparent state by the dissolution of the metal layer. The appearance and disappearance of the metal layer cause the color change of RMEDs. They take advantage of the unique optical properties of thin metal films with different thicknesses and morphologies to allow for excellent light modulation, thermal management, and display effects. The switchability of electrochromic devices between not only transparent and tinted states (including black, red, yellow, blue, etc.) but also the mirror state is advantageous, because this allows them to choose the optimal working mode as desired, and thus to function more effectively for multiple tasks. Owing to its high extinction coefficient, a thin metal film with a thickness of a few tens of nanometers would be completely opaque and highly reflective like bulk metals. [16] Research has also shown that the reflectance of RMEDs in the visible and infrared (IR) regions can reach ≈100% [17] and 90%, [18] respectively. Because RMEDs utilize the reversible deposition of metals to change their color, without a fixed electrochromic layer, their structure would be much simpler than that of typical electrochromic devices. The wide reflectance modulation range and simple device structure of RMEDs render them distinct from other electrochromic devices. The best performance reported for RMEDs are listed in Table 1.In the last century and the first decade of the 21th century, sustained efforts have been invested to apply the reversible electrodeposition mechanism to display devices. [19][20][21][22][23][24] In recent years, research on RMEDs has been progressing owing to their potential applications in energy-saving fields, especially in light modulation [8,[25][26][27][28] and thermal management. [18,29,30] Ag, Bi, and Cu are the most widely studied metals for reversible electrodeposition because of their high reversibility and the use of hazard-free electrolytes. The reversible electrodeposition of Au, [31] Zn, [32] Pb [8] and other metals is rarely reported due to their poor reversibility or the need for hazardous electrolytes.The reversible metal electrodeposition device (RMED) is a novel electrochromic application that utilizes the appearance and disappearance of a metal layer to achieve spectrum control. A thin metal film with a thickness of a few tens of nanometers would be highly reflective in the visible and infrared region, making it an ideal material to achieve light and heat modulation. Because of their outstanding spectrum control ability, RMEDs can be applied to displays, smart ...

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“…modulated more precisely. Yellow [37] and green [74] could also be obtained via the voltage step method.…”

Section: Ag-based Rmedsmentioning

confidence: 99%

“…The voltage step method can control the growth process more effectively, whereby smaller and more uniform particles can be obtained; thus, the color of the device can be modulated more precisely. Yellow [ 37 ] and green [ 74 ] could also be obtained via the voltage step method.…”

Section: Basic Designs For Solar Radiance Modulationmentioning

confidence: 99%

Reversible Metal Electrodeposition Devices: An Emerging Approach to Effective Light Modulation and Thermal Management

Tao

Liu

et al. 2021

Advanced Optical Materials

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29‐3: Late‐News Paper: Improvement of Chroma and Theoretical Analysis of Silver Deposition‐Based Multicolor Electrochromic Device

Cited by 1 publication

References 11 publications

Reversible Metal Electrodeposition Devices: An Emerging Approach to Effective Light Modulation and Thermal Management

Reversible Metal Electrodeposition Devices: An Emerging Approach to Effective Light Modulation and Thermal Management

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