Issue 1, 2022

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 Okt. 2021
First published
11 Okt. 2021

Mater. Horiz., 2022,9, 411-416

Author version available

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, 9, 411 DOI: 10.1039/D1MH01366A

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