Imperial College London
Alternate

Professor Natalie Stingelin

Faculty of Engineering, Department of Materials

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 6777n.stingelin-stutzmann Website

 
 
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Location

 

1.08Royal School of MinesSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bachevillier:2019,
author = {Bachevillier, S and Yuan, H-K and Strang, A and Levitsky, A and Frey, GL and Hafner, A and Bradley, D and Stavrinou, P and Stingelin, N},
journal = {Advanced Functional Materials},
title = {Fully solution-processed photonic structures from inorganic/organic molecular hybrid materials and commodity polymers},
url = {http://hdl.handle.net/10044/1/66020},
year = {2019}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Managing the interference effects from thin (multi-)layers allows for the control of the optical transmittance/reflectance of widely used, technologically significant structures such as antireflection coatings (ARCs) and distributed Bragg reflectors (DBRs). These rely on the destructive/constructive interference between incident, reflected and transmitted radiation. While known for over a century and having been extremely well investigated, the emergence of printable, large-area electronics brings a new emphasis: the development of materials capable of transferring well-established ideas to a solution-based production. Here, we demonstrate the solution-fabrication of ARCs and DBRs utilizing alternating layers of commodity plastics and recently developed organic/inorganic hybrid materials comprised of poly(vinyl alcohol) (PVAl), cross-linked with titanium oxide hydrates. Dip-coated ARCs exhibit an 88% reduction in reflectance across the visible compared to uncoated glass, and fully solution-coated DBRs provide a reflection of >99% across a 100 nm-spectral band in the visible region. Detailed comparisons with transfer-matrix methods (TMM) highlight their excellent optical quality including extremely low optical losses. Beneficially, when exposed to elevated temperatures, the hybrid material can display a notable, reproducible and irreversible change in refractive index and film thickness while maintaining excellent optical performance allowing post-deposition tuning, e.g., for thermoresponsive applications, including security features and product-storage environment monitoring.
AU  - Bachevillier,S
AU  - Yuan,H-K
AU  - Strang,A
AU  - Levitsky,A
AU  - Frey,GL
AU  - Hafner,A
AU  - Bradley,D
AU  - Stavrinou,P
AU  - Stingelin,N
PY  - 2019///
SN  - 1616-301X
TI  - Fully solution-processed photonic structures from inorganic/organic molecular hybrid materials and commodity polymers
T2  - Advanced Functional Materials
UR  - http://hdl.handle.net/10044/1/66020
ER  -
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