Improved Electrochemical Cycling Durability in a Nickel Oxide Double‐Layered Film

Hou, Shuai; Zhang, Xiang; Tian, Yue; Zhao, Jiupeng; Geng, Haoran; Qu, Hui‐Ying; Zhang, Hangchuan; Zhang, Kun; Wang, Binsheng; Gavrilyuk, Alexander; Li, Yao

doi:10.1002/asia.201700994

Cited by 11 publications

(10 citation statements)

References 45 publications

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“…The spectral response at 550 nm has been recorded in Figure 11 c. The Δ T of the NiO x film exhibits a value of Δ T = 34.2% for the initial time. It increases gradually and reaches a maximum value of 52.7% in the steady period up to 6000 s. In addition, the cyclic durability limits the further advancement of NiO-based films as has been reported by many researchers, which showed that the degradations are depending on the applied electrolytes or fabrication parameters [ 13 , 37 ]. Therefore, we choose the optimized NiO x electrode to further study its cyclic durability.…”

Section: Resultsmentioning

confidence: 97%

Improved Optical and Electrochromic Properties of NiOx Films by Low-Temperature Spin-Coating Method Based on NiOx Nanoparticles

Xie

Gao

et al. 2018

Materials

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Solution approaches to NiOx films for electrochromic applications are problematic due to the need of an additional high-temperature annealing treatment step in inert gas. In this study, nanostructured NiOx powder with grain size of about 10.1 nm was synthesized for fabrication of NiOx films for electrochromic application. Non-toxic dispersants of isopropanol and deionized water were used and the whole process was carried out in air. The effects of the number of spin-coating layers, annealing temperature, and the volume ratios of isopropanol to deionized water were systematically investigated. Large transmittance change of 62.3% at 550 nm, high coloration efficiency (42.8 cm2/C), rapid switching time (coloring time is 4 s, bleaching time is 3 s), and good stability were achieved in the optimized NiOx film. The optimized process only required a low processing temperature of 150 °C in air with spin-coating three times and 1:2 volume ratio of isopropanol to deionized water. Finally, good cycle durability of up to 2000 cycles without obvious degradation was demonstrated by cyclic voltammetry tests in a LiClO4/propylene carbonate electrolyte. This study provides a simple and effective approach for fabrication of NiOx films at low temperature in air, which is attractive for further commercialization of electrochromic devices.

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Section: Resultsmentioning

confidence: 97%

Improved Optical and Electrochromic Properties of NiOx Films by Low-Temperature Spin-Coating Method Based on NiOx Nanoparticles

Xie

Gao

et al. 2018

Materials

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“…The slight increase in colored-state transmittance during the cycling of the all-solid-state ECD is mainly the result of Li + ion trapping in the NiO layer, which has been confirmed by previous studies. 11,21 The enhancement of NiO layer stability can be achieved by constructing special structures 30 or element doping 31,32 in future work.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

SiO₂: A Novel Electrolyte for High-Performance All-Solid-State Electrochromic Devices

Liu

Wei

2023

ACS Sustainable Chem. Eng.

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For the practical application of electrochromic devices (ECDs), the development and preparation of high-performance electrolyte materials is one of the urgent problems to be solved. In this work, an allsolid-state ECD with the integrated structure of glass/ITO/WO 3 /Li/SiO 2 / NiO/ITO has been prepared by the magnetron sputtering method. The amorphous SiO 2 film prepared by pulsed direct current reactive magnetron sputtering was used as the electrolyte layer in the ECD for the first time and shows promising potential due to its ultrahigh transparency, good intrinsic electronic insulation, and loose structure for fast ion conduction. The ECD exhibits low leakage current density (8.5 μA cm −2 for bleaching and 43.4 μA cm −2 for coloring), high optical modulation (ΔT = 71.9% at 707 nm), fast response speed (1.1 s for the bleaching process and 8.5 s for the coloring process), excellent cycle stability, and high coloration efficiency (126.4 cm 2 C −1 ). This work not only indicates that SiO 2 as a dielectric material can be used as the electrolyte layer in all-solid-state ECDs but also provides new avenues in the selection of electrolyte materials for the preparation of high-performance ECDs.

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“…1 The electrochromism of NiO films prepared by different methods, including CVD, sputtering, spray pyrolysis, sol-gel and electrodeposition, has been demonstrated by many authors. 3,[7][8][9][10] In recent years, different strategies aiming to improve the EC performance of NiO have been proposed, such as the formation of Li-doped NiO films by pulsed layer deposition, 2,11,12 formation of double-layer amorphous NiO x films, 11 or post-synthetic ozone treatment of Al-containing NiO. 12 Nonetheless, the mechanism of electrochromism in NiO is still unresolved to some extent, especially in Li-based electrolytes.…”

Section: Introductionmentioning

confidence: 99%

Theoretical analysis of electrochromism of Ni-deficient nickel oxide – from bulk to surfaces

Pašti

Dobrota

Мигас

et al. 2023

Phys. Chem. Chem. Phys.

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Improved Electrochemical Cycling Durability in a Nickel Oxide Double‐Layered Film

Cited by 11 publications

References 45 publications

Improved Optical and Electrochromic Properties of NiOx Films by Low-Temperature Spin-Coating Method Based on NiOx Nanoparticles

Improved Optical and Electrochromic Properties of NiOx Films by Low-Temperature Spin-Coating Method Based on NiOx Nanoparticles

SiO₂: A Novel Electrolyte for High-Performance All-Solid-State Electrochromic Devices

Theoretical analysis of electrochromism of Ni-deficient nickel oxide – from bulk to surfaces

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Improved Electrochemical Cycling Durability in a Nickel Oxide Double‐Layered Film

Cited by 11 publications

References 45 publications

Improved Optical and Electrochromic Properties of NiOx Films by Low-Temperature Spin-Coating Method Based on NiOx Nanoparticles

Improved Optical and Electrochromic Properties of NiOx Films by Low-Temperature Spin-Coating Method Based on NiOx Nanoparticles

SiO2: A Novel Electrolyte for High-Performance All-Solid-State Electrochromic Devices

Theoretical analysis of electrochromism of Ni-deficient nickel oxide – from bulk to surfaces

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SiO₂: A Novel Electrolyte for High-Performance All-Solid-State Electrochromic Devices