Infrared Fingerprint Engineering: A Molecular-Design Approach to Long-Wave Infrared Transparency with Polymeric Materials

Tristan S. Kleine, Taeheon Lee, Kyle J. Carothers, Meghan O. Hamilton, Laura E. Anderson, Liliana Ruiz Diaz, Nicholas P. Lyons, Keith R. Coasey, Wallace O. Parker, Ludovico Borghi, Michael E. Mackay, Kookheon Char, Richard S. Glass, Dennis L. Lichtenberger, Robert A. Norwood, Jeffrey Pyun

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Optical technologies in the long-wave infrared (LWIR) spectrum (7–14 μm) offer important advantages for high-resolution thermal imaging in near or complete darkness. The use of polymeric transmissive materials for IR imaging offers numerous cost and processing advantages but suffers from inferior optical properties in the LWIR spectrum. A major challenge in the design of LWIR-transparent organic materials is that nearly all organic molecules absorb in this spectral window which lies within the so-called IR-fingerprint region. We report on a new molecular-design approach to prepare high refractive index polymers with enhanced LWIR transparency. Computational methods were used to accelerate the design of novel molecules and polymers. Using this approach, we have prepared chalcogenide hybrid inorganic/organic polymers (CHIPs) with enhanced LWIR transparency and thermomechanical properties via inverse vulcanization of elemental sulfur with new organic co-monomers.

Original languageEnglish (US)
Pages (from-to)17656-17660
Number of pages5
JournalAngewandte Chemie - International Edition
Volume58
Issue number49
DOIs
StatePublished - Dec 2 2019

Keywords

  • computational simulations
  • long-wave infrared imaging
  • optical polymers
  • sulfur utilization

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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