One-step hydrothermal synthesis of V1-xWxO2(M/R) nanorods with superior doping efficiency and thermochromic properties

Ru Chen; Lei Miao; Haoliang Cheng; Eiji Nishibori; Chengyan Liu; Toru Asaka; Yuji Iwamoto; Masaki Takata; Sakae Tanemura

doi:10.1039/c4ta05559d

One-step hydrothermal synthesis of V_1-xW_xO₂(M/R) nanorods with superior doping efficiency and thermochromic properties

Ru Chen, Lei Miao, Haoliang Cheng, Eiji Nishibori, Chengyan Liu, Toru Asaka, Yuji Iwamoto, Masaki Takata, Sakae Tanemura

Research output: Contribution to journal › Article › peer-review

59 Citations (Scopus)

Abstract

Pure phase V_1-xW_xO₂(M/R) nanorods with superb metal-insulator transition properties were obtained in tungsten (W)-doped level ranges from 0.5 to 2.0 at% using a one-step hydrothermal treatment without additional annealing steps. The assured level of W doping greatly promotes the grain growth of pure phase vanadium oxide (VO₂)(M/R) and simultaneously the phase transition temperature (T_c) is depressed as much as 103°C per at% W for the V_1-xW_xO₂ nanorods when x = 1.0-2.0 at%. After mixing the pure phase VO₂(M) (W-doped 0.5 at%, phase transition at 47°C) nanorods with acrylic resin, the integrated visible transmission of the VO₂ composite coating on glass is up to 60.6% and the integrated solar modulation efficiency is up to 10.3%. These results mean that the superior thermochromic property will greatly favor the practical application of VO₂-based smart windows.

Original language	English
Pages (from-to)	3726-3738
Number of pages	13
Journal	Journal of Materials Chemistry A
Volume	3
Issue number	7
DOIs	https://doi.org/10.1039/c4ta05559d
Publication status	Published - 2015 Feb 21
Externally published	Yes

ASJC Scopus subject areas

Chemistry(all)
Renewable Energy, Sustainability and the Environment
Materials Science(all)

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title = "One-step hydrothermal synthesis of V1-xWxO2(M/R) nanorods with superior doping efficiency and thermochromic properties",

abstract = "Pure phase V1-xWxO2(M/R) nanorods with superb metal-insulator transition properties were obtained in tungsten (W)-doped level ranges from 0.5 to 2.0 at% using a one-step hydrothermal treatment without additional annealing steps. The assured level of W doping greatly promotes the grain growth of pure phase vanadium oxide (VO2)(M/R) and simultaneously the phase transition temperature (Tc) is depressed as much as 103°C per at% W for the V1-xWxO2 nanorods when x = 1.0-2.0 at%. After mixing the pure phase VO2(M) (W-doped 0.5 at%, phase transition at 47°C) nanorods with acrylic resin, the integrated visible transmission of the VO2 composite coating on glass is up to 60.6% and the integrated solar modulation efficiency is up to 10.3%. These results mean that the superior thermochromic property will greatly favor the practical application of VO2-based smart windows.",

author = "Ru Chen and Lei Miao and Haoliang Cheng and Eiji Nishibori and Chengyan Liu and Toru Asaka and Yuji Iwamoto and Masaki Takata and Sakae Tanemura",

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T1 - One-step hydrothermal synthesis of V1-xWxO2(M/R) nanorods with superior doping efficiency and thermochromic properties

AU - Chen, Ru

AU - Miao, Lei

AU - Cheng, Haoliang

AU - Nishibori, Eiji

AU - Liu, Chengyan

AU - Asaka, Toru

AU - Iwamoto, Yuji

AU - Takata, Masaki

AU - Tanemura, Sakae

PY - 2015/2/21

Y1 - 2015/2/21

N2 - Pure phase V1-xWxO2(M/R) nanorods with superb metal-insulator transition properties were obtained in tungsten (W)-doped level ranges from 0.5 to 2.0 at% using a one-step hydrothermal treatment without additional annealing steps. The assured level of W doping greatly promotes the grain growth of pure phase vanadium oxide (VO2)(M/R) and simultaneously the phase transition temperature (Tc) is depressed as much as 103°C per at% W for the V1-xWxO2 nanorods when x = 1.0-2.0 at%. After mixing the pure phase VO2(M) (W-doped 0.5 at%, phase transition at 47°C) nanorods with acrylic resin, the integrated visible transmission of the VO2 composite coating on glass is up to 60.6% and the integrated solar modulation efficiency is up to 10.3%. These results mean that the superior thermochromic property will greatly favor the practical application of VO2-based smart windows.

AB - Pure phase V1-xWxO2(M/R) nanorods with superb metal-insulator transition properties were obtained in tungsten (W)-doped level ranges from 0.5 to 2.0 at% using a one-step hydrothermal treatment without additional annealing steps. The assured level of W doping greatly promotes the grain growth of pure phase vanadium oxide (VO2)(M/R) and simultaneously the phase transition temperature (Tc) is depressed as much as 103°C per at% W for the V1-xWxO2 nanorods when x = 1.0-2.0 at%. After mixing the pure phase VO2(M) (W-doped 0.5 at%, phase transition at 47°C) nanorods with acrylic resin, the integrated visible transmission of the VO2 composite coating on glass is up to 60.6% and the integrated solar modulation efficiency is up to 10.3%. These results mean that the superior thermochromic property will greatly favor the practical application of VO2-based smart windows.

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One-step hydrothermal synthesis of V_1-xW_xO₂(M/R) nanorods with superior doping efficiency and thermochromic properties

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