TY - JOUR
T1 - Fully Solution-Processed Photonic Structures from Inorganic/Organic Molecular Hybrid Materials and Commodity Polymers
AU - Bachevillier, Stefan
AU - Yuan, Hua Kang
AU - Strang, Andrew
AU - Levitsky, Artem
AU - Frey, Gitti L.
AU - Hafner, Andreas
AU - Bradley, Donal D.C.
AU - Stavrinou, Paul N.
AU - Stingelin, Natalie
N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27
PY - 2019/5/23
Y1 - 2019/5/23
N2 - Managing the interference effects from thin (multi-)layers allows for the control of the optical transmittance/reflectance of widely used and 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 and large-area electronics brings a new emphasis: the development of materials capable of transferring well-established ideas to a solution-based production. Here, demonstrated is 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 transfermatrix 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 postdeposition tuning, e.g., for thermo-responsive applications, including security features and product-storage environment monitoring.
AB - Managing the interference effects from thin (multi-)layers allows for the control of the optical transmittance/reflectance of widely used and 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 and large-area electronics brings a new emphasis: the development of materials capable of transferring well-established ideas to a solution-based production. Here, demonstrated is 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 transfermatrix 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 postdeposition tuning, e.g., for thermo-responsive applications, including security features and product-storage environment monitoring.
UR - https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.201808152
UR - http://www.scopus.com/inward/record.url?scp=85060715308&partnerID=8YFLogxK
U2 - 10.1002/adfm.201808152
DO - 10.1002/adfm.201808152
M3 - Article
SN - 1616-3028
VL - 29
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 21
ER -