Data for: Optimized Thermochromic Properties of VO2/CoFe2O4 Nanocomposite Films via Band Gap Engineering

Published: 27 Nov 2018 | Version 1 | DOI: 10.17632/6y66psdt97.1
Contributor(s):

Description of this data

Figure 1. XRD pattern of the CoFe2O4 sample. The inset is the corresponding FESEM image.
Figure 2. XRD patterns of CoFe2O4/VO2 nanocomposites with CoFe2O4 addition content of (1) 0, (2) 1, (3) 2, (4) 4, and (5) 6 mmol.
Figure 3. (a) XRD patterns of (1) physical mixture of CoFe2O4 and VO2 nanoparticles and CoFe2O4/VO2 nanocomposites with CoFe2O4 additive content of (2) 0, (3) 1, (4) 2, (5) 4, and (6) 6 mmol. (b) The relationship between the additive amount and grain size of CoFe2O4.
Figure 4. FESEM images of VO2 nanoparticles without (a) and with 2 mmol CoFe2O4 (b).
Figure 5. Transmittance spectra of CoFe2O4/VO2 nanocomposite films before (25 °C, solid line) and after (100 °C, dashed line) phase transition with CoFe2O4 additive content of 1 mmol and film thickness of (1) 264 (curve 1), (2) 305 (curve 2), (3) 370 (curve 3) and (4) 440 nm (curve 4).
Figure 6.Transmittance spectra of pure VO2 nanoparticles (1), physical mixture of VO2 and CoFe2O4 nanoparticles (2), CoFe2O4/VO2 nanocomposites with CoFe2O4 additive content of (3) 1, (4) 2, (5) 4 and (6) 6 mmol at 25 °C (solid line) and 100 °C (dashed line).
Figure 7. V 2p and O1s XPS of VO2 and CoFe2O4 physical mixture (1), CoFe2O4/VO2 nanocomposites with CoFe2O4 additive content of (2) 1, (3) 2, (4) 4 and (5) 6 mmol.
Figure 8. Temperature-dependent infrared transmittance spectra of VO2 nanoparticles (1), physical mixture of VO2 and CoFe2O4 nanoparticles (2), CoFe2O4/VO2 nanocomposites with CoFe2O4 additive content of (3) 1, (4) 2, (5) 4 and (6) 6 mmol at 25 and 100°C.
Figure 9. Temperature-dependent infrared transmittance spectra of the CoFe2O4/VO2 nanocomposite film with CoFe2O4 additive content of 1 mmol and thickness of 305 nm. The arrow direction points gradual increase in the temperature from 30 to 100 oC.
Figure 10. DSC curves of VO2(M) nanoparticles (a), CoFe2O4/VO2 nanocomposites with CoFe2O4 additive content of (b) 1, (c) 2, (d) 4, (e) 6 mmol, and (f) CoFe2O4 nanoparticles, physical mixture of VO2 and CoFe2O4 nanoparticles with the mass ratio of (1) 3.4:0.7, (2) 2:4.6, (3) 1.3:3 in warming cycle.
Figure 11. (a) UV-Vis absorption spectra and (b) (ah)2-h plots of VO2 (1), CoFe2O4 (2) and CoFe2O4/VO2 nanocomposites with CoFe2O4 additive content of (3) 1, (4) 2, (5) 4 and (6) 6 mmol.
Figure S1 (a) TEM image, and (b) room-temperature magnetic hysteresis curves of the CoFe2O4 sample. The inset in (a) is the corresponding HRTEM image.
Figure S2 Enlarged XRD patterns of the diffraction peak between 30 o and 34o.
Figure S3 XPS spectra: (a) overall scan, (b) Co 2p and (c) Fe 2p of CoFe2O4/VO2 nanocomposites with CoFe2O4 additive content of 2 mmol.

Experiment data files

This data is associated with the following publication:

Optimized thermochromic properties of VO2/CoFe2O4 nanocomposite films via band gap engineering

Published in: Solar Energy Materials and Solar Cells

Latest version

  • Version 1

    2018-11-27

    Published: 2018-11-27

    DOI: 10.17632/6y66psdt97.1

    Cite this dataset

    LUO, YUANYUAN (2018), “Data for: Optimized Thermochromic Properties of VO2/CoFe2O4 Nanocomposite Films via Band Gap Engineering”, Mendeley Data, v1 http://dx.doi.org/10.17632/6y66psdt97.1

Statistics

Views: 1387
Downloads: 57

Categories

Materials Science

Mendeley Library

Organise your research assets using Mendeley Library. Add to Mendeley Library

Licence

CC BY NC 3.0 Learn more

The files associated with this dataset are licensed under a Attribution-NonCommercial 3.0 Unported licence.

What does this mean?

You are free to adapt, copy or redistribute the material, providing you attribute appropriately and do not use the material for commercial purposes.

Report