From Amorphous Macroporous Film to 3D Crystalline Nanorod Architecture: A New Approach to Obtain High-Performance V2O5 Electrochromism

Zhongqiu Tong; Xiang Zhang; Haiming Lv; Na Li; Huiying Qu; Jiupeng Zhao; Yao Li; Xiang-Yang Liu

doi:10.1002/admi.201500230

From Amorphous Macroporous Film to 3D Crystalline Nanorod Architecture: A New Approach to Obtain High-Performance V₂O₅ Electrochromism

Zhongqiu Tong, Xiang Zhang, Haiming Lv, Na Li, Huiying Qu, Jiupeng Zhao, Yao Li, Xiang-Yang Liu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

39 Citations (Scopus)

Abstract

A 3D crystalline V2O5 nanorod architecture on indium tin oxide substrates is prepared by simple annealing treatment of a colloidal crystal-assisted electrodeposited amorphous three-dimensionally ordered macroporous film at a low temperature of 350 °C. The crystalline nanorods exhibit a low length/diameter ratio with the typical width range of 80-180 nm, length range of 190-500 nm, and thickness of 30-50 nm. Colloidal sphere-assisted heterogeneous nucleation during electrodeposition and the anisotropic bonding of the V2O5-layered structure are two important factors for the morphological changes. Because of the large surface area, short lithium ion diffusion distance, and good electrolyte penetration, the 3D crystalline V2O5 nanorod architecture exhibits a highly reversible Li-ion insertion/extraction process (columbic efficiency up to 96.9%) with a five-color-change electrochromic performance, good transmittance modulation, and acceptable response times (8.8 s for coloration and 9.3 s for bleaching), making it a promising film electrode for electrochromic devices. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Original language	English
Article number	1500230
Journal	Advanced Materials Interfaces
Volume	2
Issue number	12
DOIs	https://doi.org/10.1002/admi.201500230
Publication status	Published - 1 Aug 2015
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

Funding

This work was supported by the National Natural Science Foundationof China (Nos. 51010005, 91216123, and 51174063), Natural ScienceFunds for Distinguished Young Scholar of Heilongjiang Province, theNatural Science Foundation of Heilongjiang Province (E201436), theInternational Science and Technology Cooperation Program of China(2013DFR10630), and Specialized Research Fund for the DoctoralProgram of Higher Education (SRFDP 20132302110031).

Research Keywords

3D nanorod architecture
annealing
electrochromic
morphology change
V2O5

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title = "From Amorphous Macroporous Film to 3D Crystalline Nanorod Architecture: A New Approach to Obtain High-Performance V2O5 Electrochromism",

abstract = "A 3D crystalline V2O5 nanorod architecture on indium tin oxide substrates is prepared by simple annealing treatment of a colloidal crystal-assisted electrodeposited amorphous three-dimensionally ordered macroporous film at a low temperature of 350 °C. The crystalline nanorods exhibit a low length/diameter ratio with the typical width range of 80-180 nm, length range of 190-500 nm, and thickness of 30-50 nm. Colloidal sphere-assisted heterogeneous nucleation during electrodeposition and the anisotropic bonding of the V2O5-layered structure are two important factors for the morphological changes. Because of the large surface area, short lithium ion diffusion distance, and good electrolyte penetration, the 3D crystalline V2O5 nanorod architecture exhibits a highly reversible Li-ion insertion/extraction process (columbic efficiency up to 96.9%) with a five-color-change electrochromic performance, good transmittance modulation, and acceptable response times (8.8 s for coloration and 9.3 s for bleaching), making it a promising film electrode for electrochromic devices. {\textcopyright} 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.",

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AU - Qu, Huiying

AU - Zhao, Jiupeng

AU - Li, Yao

AU - Liu, Xiang-Yang

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AB - A 3D crystalline V2O5 nanorod architecture on indium tin oxide substrates is prepared by simple annealing treatment of a colloidal crystal-assisted electrodeposited amorphous three-dimensionally ordered macroporous film at a low temperature of 350 °C. The crystalline nanorods exhibit a low length/diameter ratio with the typical width range of 80-180 nm, length range of 190-500 nm, and thickness of 30-50 nm. Colloidal sphere-assisted heterogeneous nucleation during electrodeposition and the anisotropic bonding of the V2O5-layered structure are two important factors for the morphological changes. Because of the large surface area, short lithium ion diffusion distance, and good electrolyte penetration, the 3D crystalline V2O5 nanorod architecture exhibits a highly reversible Li-ion insertion/extraction process (columbic efficiency up to 96.9%) with a five-color-change electrochromic performance, good transmittance modulation, and acceptable response times (8.8 s for coloration and 9.3 s for bleaching), making it a promising film electrode for electrochromic devices. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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