Dual-Phase Transformation: Spontaneous Self-Template Surface-Patterning Strategy for Ultra-transparent VO<sub>2</sub> Solar Modulating Coatings.
basic_science · Level V
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- Record sourced from PubMed, PMID 28009507.
- Also identified by DOI 10.1021/acsnano.6b06152.
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Abstract
Dual-phase transformation has been developed as a template-free surface patterning technique in this study. Ordered VO<sub>2</sub> honeycomb structures with a complex hierarchy have been fabricated via this method, and the microstructures of the obtained VO<sub>2</sub>(M) coatings are tunable by tailoring the pertinent variables. The VO<sub>2</sub>(M) honeycomb-structured coatings have excellent visible light transmittance at 700 nm (T<sub>vis</sub>) up to 95.4% with decent solar modulating ability (ΔT<sub>sol</sub>) of 5.5%, creating the potential as ultratransparent smart solar modulating coatings. Its excellent performance has been confirmed by a proof-of-principle demonstration. The dual-phase transformation technique has dramatically simplified the conventional colloidal lithography technique as a scalable surface patterning technique for achieving high-performance metal oxide coatings with diverse applications, such as catalysis, sensing, optics, electronics, and superwettable materials.