4.6 Article

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

期刊

MATERIALS HORIZONS
卷 9, 期 1, 页码 411-416

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1mh01366a

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资金

  1. UK's Engineering and Physical Sciences Research Council (EPSRC) [EP/G037515/1]
  2. BASF Schweiz AG
  3. Marie Skodowska-Curie Actions Innovative Training Network H2020-MSCAITN-2014 INFORM [675867]
  4. People Programme (Marie Curie Actions) of the European Union's Framework Programme Horizon 2020: Flexible Complementary Hybrid Integrated Circuits (FlexCHIC) [658563]
  5. U.S. National Science Foundation [1838276]
  6. Division Of Materials Research
  7. Direct For Mathematical & Physical Scien [1838276] Funding Source: National Science Foundation
  8. Marie Curie Actions (MSCA) [675867, 658563] Funding Source: Marie Curie Actions (MSCA)

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In this study, proof-of-concept refractive-index structures with large refractive-index-gradient profiles were demonstrated using a micro-contact photothermal annealing (mu CPA) process. A significant refractive index modulation of up to Delta n approximate to +0.05 can be achieved within less than a second of pulsed lamp exposure with mu CPA, showing potential for high throughput fabrication of photonic structures with a polymer-based system.
We demonstrate proof-of-concept refractive-index structures with large refractive-index-gradient profiles, using a micro-contact photothermal annealing (mu CPA) 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 Delta n approximate to +0.05 can be achieved with mu CPA 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.

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