eprintid: 10183055
rev_number: 13
eprint_status: archive
userid: 699
dir: disk0/10/18/30/55
datestamp: 2023-12-06 10:15:12
lastmod: 2024-10-31 12:23:13
status_changed: 2023-12-06 10:15:12
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Li, B
creators_name: Tian, S
creators_name: Zhou, L
creators_name: Wu, S
creators_name: Ma, T
creators_name: He, G
creators_name: Liu, B
creators_name: Zhao, X
title: Fully Discrete VO₂ Particulate Film with Ultra-High Transmittance and Excellent Thermochromic Performance
ispublished: pub
divisions: UCL
divisions: B04
divisions: C06
divisions: F56
keywords: particulate films, phase transition temperature, solution method, thermochromic performance, transparent vanadium dioxide
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Vanadium dioxide (VO2) has attracted widespread attention due to its extraordinary thermochromic properties. Visually transparent VO2 films hold great promise for applying in smart windows, smart radiative coolers, solar cells, and microwave absorbing windows. However, it remains a huge challenge to simultaneously achieve ultra-high luminous transmittance (Tlum) and excellent thermochromic performance due to their contradictory relationship. Here, a fully discrete VO2 particulate (FDVP) film is developed. It shows an ultra-high Tlum of 92.7% due to the reflectance being significantly reduced. Below the phase transition temperature (Tc, 69.1 °C), it is highly transparent to near-infrared (NIR) light, while above Tc, it blocks NIR light through the strong localized surface plasmon resonance (LSPR) effect, resulting in an excellent solar energy modulation (ΔTsol) of 10.5% for smart windows. In addition, a 3.5 at.%W-doped FDVP film exhibits a desired Tc of 25.8 °C, an extremely narrow hysteresis width (ΔT) of 4.6 °C, and good optical properties (Tlum = 92.0%, ΔTsol = 8.2%). The performance represents a new milestone for thermochromic VO2 films. This work will shed light on the structural design for high-performance VO2 films.
date: 2024-02-23
date_type: published
publisher: Wiley
official_url: https://doi.org/10.1002/adom.202302042
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2103889
doi: 10.1002/adom.202302042
lyricists_name: He, Guanjie
lyricists_id: GJHEX85
actors_name: He, Guanjie
actors_id: GJHEX85
actors_role: owner
full_text_status: public
publication: Advanced Optical Materials
volume: 12
number: 6
article_number: 2302042
issn: 2195-1071
citation:        Li, B;    Tian, S;    Zhou, L;    Wu, S;    Ma, T;    He, G;    Liu, B;           Li, B;  Tian, S;  Zhou, L;  Wu, S;  Ma, T;  He, G;  Liu, B;  Zhao, X;   - view fewer <#>    (2024)    Fully Discrete VO₂ Particulate Film with Ultra-High Transmittance and Excellent Thermochromic Performance.                   Advanced Optical Materials , 12  (6)    , Article 2302042.  10.1002/adom.202302042 <https://doi.org/10.1002/adom.202302042>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10183055/1/He_manuscript-libin.pdf