<trans-title>Preparation of Lithium Titanate Thin Film for Electrochromic Smart Window by Sol-Gel Spin Coating Method</trans-title>

Tianyue WANG; Mengying WANG; Qingjiao HUANG; Jiaming YANG; Shunhua WANG; Xungang DIAO

doi:10.15541/jim20200584

Journal of Inorganic Materials, Volume. 36, Issue 5, 471(2020)

Preparation of Lithium Titanate Thin Film for Electrochromic Smart Window by Sol-Gel Spin Coating Method

Tianyue WANG1...2, Mengying WANG1,*, Qingjiao HUANG3, Jiaming YANG3, Shunhua WANG2 and Xungang DIAO1,* |Show fewer author(s)

Author Affiliations

¹1. School of Energy and Power Engineering, Beihang University, Beijing 100191, China

²2. School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China

³3. School of Physics, Beihang University, Beijing 100191, China

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Figures & Tables(11)

1. XRD patterns of Li₄Ti₅O₁₂ thin films with different thicknesses

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2. SEM surface images (a-e) with insets showing cross-sectional structures and TEM image (f) of Li₄Ti₅O₁₂ thin films with different thicknesses

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3. CA curves (a) and in-situ transmittance spectra (b) of Li₄Ti₅O₁₂ thin films with different thicknesses

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4. CV curves under limited voltage condition (a), in-situ transmittance spectra (b) and CV curves under reasonable voltage condition (c), and in-situ transmittance spectra (d) of LTO-3 at various scan rates

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5. CV curves (a-e) within 100 cycles and in-situ transmittance spectra (f-j) within 20000 s of Li₄Ti₅O₁₂ thin films with different thicknesses

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6. Colored and bleached transmittance spectra of Li₄Ti₅O₁₂ films with different thicknesses in the wavelength 400-1100 nm

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7. Schematic diagram of the structure of the all-solid- state inorganic device Glass/FTO/Li₄Ti₅O₁₂/LiNbO₃/NiO_x/ITO

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8. Electrochromic performance of all-solid-state inorganic Glass/FTO/Li₄Ti₅O₁₂/LiNbO₃/NiO_x/ITO devices

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Table 1. Preparation parameters of all-solid-state inorganic devices Glass/FTO/Li₄Ti₅O₁₂/LiNbO₃/NiO_x/ITO
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Table 1. Preparation parameters of all-solid-state inorganic devices Glass/FTO/Li₄Ti₅O₁₂/LiNbO₃/NiO_x/ITO
Target Power source Pressure/Pa Atmosphere(Ar : O₂) Power/W Time/min
LiNbO₃ RF 0.8 95 : 5 300 120
Ni DC 1.5 94 : 6 200 25
ITO DC 0.3 78.4 : 21.6 200 20

Table 2. Lattice constant, interplanar spacing and grain size of Li₄Ti₅O₁₂ thin films with different thicknesses
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Table 2. Lattice constant, interplanar spacing and grain size of Li₄Ti₅O₁₂ thin films with different thicknesses
Sample Lattice constant/nm Interplanar spacing/nm Average crystallite size/nm
LTO-1 0.834463 0.48055 14.9
LTO-2 0.834586 0.48055 16.2
LTO-3 0.834554 0.48068 15.8
LTO-4 0.834637 0.48055 18.5
LTO-5 0.834687 0.48055 19.4

Table 3. Transmittance and response time of Li₄Ti₅O₁₂ thin films with different thicknesses
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Table 3. Transmittance and response time of Li₄Ti₅O₁₂ thin films with different thicknesses
Sample T_b/% T_c/% ΔT/% t_c/s t_b/s
LTO-1 91.84 72.7 19.14 26.3 3.6
LTO-2 90.07 64.35 25.72 20.5 4.5
LTO-3 88.04 37.28 50.76 19.1 8.9
LTO-4 87.4 34.35 53.05 21.8 7.6
LTO-5 75.12 26.19 48.93 28.6 12.0

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Tianyue WANG, Mengying WANG, Qingjiao HUANG, Jiaming YANG, Shunhua WANG, Xungang DIAO. Preparation of Lithium Titanate Thin Film for Electrochromic Smart Window by Sol-Gel Spin Coating Method[J]. Journal of Inorganic Materials, 2020, 36(5): 471

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Paper Information

Category: TOPLCAL SECTION

Received: Oct. 14, 2020

Accepted: --

Published Online: Nov. 25, 2021

The Author Email: WANG Mengying (mercy@buaa.edu.cn), DIAO Xungang (diaoxg@buaa.edu.cn)

DOI:10.15541/jim20200584

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Preparation parameters of all-solid-state inorganic devices Glass/FTO/Li4Ti5O12/LiNbO3/NiOx/ITO

Table 1. Preparation parameters of all-solid-state inorganic devices Glass/FTO/Li4Ti5O12/LiNbO3/NiOx/ITO

Table 2. Lattice constant, interplanar spacing and grain size of Li4Ti5O12 thin films with different thicknesses

Table 2. Lattice constant, interplanar spacing and grain size of Li4Ti5O12 thin films with different thicknesses

Table 3. Transmittance and response time of Li4Ti5O12 thin films with different thicknesses

Table 3. Transmittance and response time of Li4Ti5O12 thin films with different thicknesses

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Table 1. Preparation parameters of all-solid-state inorganic devices Glass/FTO/Li₄Ti₅O₁₂/LiNbO₃/NiO_x/ITO

Table 1. Preparation parameters of all-solid-state inorganic devices Glass/FTO/Li₄Ti₅O₁₂/LiNbO₃/NiO_x/ITO

Table 2. Lattice constant, interplanar spacing and grain size of Li₄Ti₅O₁₂ thin films with different thicknesses

Table 2. Lattice constant, interplanar spacing and grain size of Li₄Ti₅O₁₂ thin films with different thicknesses

Table 3. Transmittance and response time of Li₄Ti₅O₁₂ thin films with different thicknesses

Table 3. Transmittance and response time of Li₄Ti₅O₁₂ thin films with different thicknesses