Planar refractive index patterning through microcontact photo-thermal annealing of a printable organic/inorganic hybrid material

Abstract

We demonstrate proof-of-concept refractive-index structures with large refractive-index-gradient profiles, using a micro-contact photothermal annealing (μCPA) process to pattern organic/inorganic hybrid materials comprising titanium oxide hydrate within a poly(vinyl alcohol) binder. A significant refractive index modulation of up to Δn ≈ +0.05 can be achieved with μCPA within less than a second of pulsed lamp exposure, which promises the potential for a high throughput fabrication process of photonic structures with a polymer-based system.

Graphical abstract: Planar refractive index patterning through microcontact photo-thermal annealing of a printable organic/inorganic hybrid material

Supplementary files

Article information

Article type
Communication
Submitted
23 Aug 2021
Accepted
11 Oct 2021
First published
11 Oct 2021

Mater. Horiz., 2022, Advance Article

Planar refractive index patterning through microcontact photo-thermal annealing of a printable organic/inorganic hybrid material

S. Bachevillier, H. Yuan, K. Tetzner, D. D. C. Bradley, T. D. Anthopoulos, P. N. Stavrinou and N. Stingelin, Mater. Horiz., 2022, Advance Article , DOI: 10.1039/D1MH01366A

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