An electrochemically stable Ag@Au–Co core–shell nanowire network-based transparent conductor for flexible self-powered Zn-based electrochromic smart devices

Zhang, He; Feng, Jie; Sun, Fangyuan; Zhou, Dongyan; Cao, Gang; Wu, Zhuohuan; Wang, Shang; Su, Fengyu; Tian, Yanqing; Tian, Yanhong

doi:10.1039/d2ma01036d

Cited by 5 publications

(6 citation statements)

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“…The recovery speed can also be highly boosted by applying an extra voltage. 50 When a voltage of 2.0 V is applied, a very fast self-coloration time of 6.5 s is achieved for the PPy/PB/Al device.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…In comparison with the spontaneous oxidation by dissolved O 2 , the recovery can be greatly accelerated by adding strong oxidants, such as (NH 4 ) 2 S 2 O 8 , where the device recovers to 90% of its initial state within 5 min However, strong oxidants utilized in the previous study such as H 2 O 2 , NaClO, and (NH 4 ) 2 S 2 O 8 are usually unstable, leading to poor cyclic stability of the device. The recovery speed can also be highly boosted by applying an extra voltage . When a voltage of 2.0 V is applied, a very fast self-coloration time of 6.5 s is achieved for the PPy/PB/Al device.…”

Section: Resultsmentioning

confidence: 99%

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Boosting the Self-Recharging of Polypyrrole/Prussian Blue Electrochromic Device by Potential Difference-Driven Alternative Redox

Ma,

Yang,

Wang

2023

ACS Appl. Mater. Interfaces

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Boosting the Self-Recharging of Polypyrrole/Prussian Blue Electrochromic Device by Potential Difference-Driven Alternative Redox

Ma,

Yang,

Wang

2023

ACS Appl. Mater. Interfaces

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“…Silver nanowires (AgNWs) are also important materials for flexible transparent conductors (FTCs) in the next-generation wearable electronics. [87] Zhang et al [80] . used the electrodeposition method to prepare the Ag@Au NW network as a flexible transparent electrode (FTE), as shown in Figure 12(a).…”

Section: Semi-solid Ecdsmentioning

confidence: 99%

“…After prolonged bending, the degradation in color instability or device performance may occur. Silver nanowires (AgNWs) are also important materials for flexible transparent conductors (FTCs) in the next‐generation wearable electronics [87] . Zhang et al [80] .…”

Section: Ecdsmentioning

confidence: 99%

Recent Advance in Electrochromic Materials and Devices for Display Applications

Wang,

Zhu,

Zhuang

et al. 2024

ChemPlusChem

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Electrochromic devices (ECDs) possess the performance advantages in terms of color adjustability, low power consumption, and visual friendliness, emerging as one of the ideal candidates for energy‐efficient smart windows, next‐generation displays, and wearable electronics. The optical and electrical characteristics of ECDs could be adjusted by modifying the materials or structure of devices. This review summarizes the recent developments of innovative technologies and key materials of ECDs for display applications, highlighting the key issues and the development trends in this area.

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“…To address the stability issue of AgNWs, protective coatings have been used in previous studies. These coatings include metal oxides (MoO x 35 WO x 36 NiO 37 ZnO and Al 2 O 3 38 ), metals (palladium (Pd) 39 , nickel (Ni) 26 gold (Au) 40 – 42 ), graphene 43 , 44 , and polymers. Though these coatings can improve chemical stability, they may have negative effects on optoelectronic properties due to their low electrical conductivity like most metal oxides and polymers.…”

Section: Introductionmentioning

confidence: 99%

Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowires

Gholami,

Tajabadi,

Taghavinia

et al. 2023

Sci Rep

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Silver nanowires (AgNWs) with a low diameter, high aspect ratio, stable suspension, and easy synthesis have recently attracted the optoelectronic industry as a low-cost alternative to indium tin oxide transparent conductive films. However, silver nanowires are not chemically stable, and their conductivity diminishes over time due to reactions with atmospheric components. This is a bottleneck for their wide industrial applications. In this study, we aim to address this issue by synthesizing silver nanowires with an average diameter of approximately 65 nm and a length of approximately 13 µm. The prepared Ag nanowires are then applied to fabricate transparent, flexible, and chemically stable conductive films. The fabrication includes spraying of silver nanowires suspension on a glass substrate followed by Dr. blade coating of polystyrene (PS) solution and delamination of the PS-AgNWs film. The resulting film exhibits an optimum sheet resistance of 24 Ω/□ and transmittance of 84%. To further enhance the stability of the transparent conductive film, the facial and scalable double pulse electrodeposition method is used for coating of gold on the exposed surface of the AgNWs embedded in PS. The final transparent film with gold coating demonstrates a remarkable stability under harsh conditions including long exposure to UV light and nitric acid solution. After 100 min of UV/Ozone treatment, the increase in sheet resistance of the optimal PS-AgNW@Au sample is 15.6 times lower than the samples without gold coating. In addition, the change in sheet resistance after 2000 bending cycles in the optimal PS-AgNW@Au electrode is measured and it showed an increase of only 22% of its initial sheet resistance indicating its good flexibility. The proposed electrode performs an excellent chemical stability, good conductivity, transparency, and flexibility that makes it a potential candidate for various optoelectronic devices.

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An electrochemically stable Ag@Au–Co core–shell nanowire network-based transparent conductor for flexible self-powered Zn-based electrochromic smart devices

Abstract: Silver nanowires (AgNWs) are important materials to fabricate flexible transparent conductors (FTCs) for next-generation wearable electronics. However, the electrochemical instability still limits their practical applications in electrochemical devices. Herein, highly...

Cited by 5 publications

References 80 publications

Boosting the Self-Recharging of Polypyrrole/Prussian Blue Electrochromic Device by Potential Difference-Driven Alternative Redox

Boosting the Self-Recharging of Polypyrrole/Prussian Blue Electrochromic Device by Potential Difference-Driven Alternative Redox

Recent Advance in Electrochromic Materials and Devices for Display Applications

Chemically-stable flexible transparent electrode: gold-electrodeposited on embedded silver nanowires

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