2D MoS2 Archimedean Scroll Bragg reflectors as chromatically adaptive fibers

We focused on the development of Highly Ordered Two-Dimensional MoS2 Archimedean Scroll Bragg Reflectors as Chromatically Adaptive Fibers with the fabrication technique of the Archimedean scroll fiber. We are harnessing the potential of nanostructured fibers and two-dimensional (2D) materials, specifically molybdenum disulfide (MoS2) and hexagonal boron nitride (hBN), to create unique fibers with cross sections formed from a single 2D molecular layer. These fibers, made using Chemical Vapor Deposited (CVD) monolayer MoS2 and poly(methyl methacrylate) (PMMA), function as Bragg reflector fibers, reflecting light at 630–709 nm and demonstrating a memory response to temperature changes. We also simulate the reflection and transmission spectra of MoS2/PMMA and MoS2/polydimethylsiloxane layered composites. This simulation helps us design scroll fiber composites using transfer matrix methods. Furthermore, we have successfully incorporated a few-layer CVD hBN into the scroll fiber composite, which emits photons at 576 nm.

The highly oriented layered structures of these fibers extend their capability to take advantage of anisotropic optical, electrical, and thermal properties unique to 2D materials. This research is a significant step forward in the field of materials science, opening up new possibilities for the application of 2D materials in various domains.

Highly Ordered Two-Dimensional MoS2 Archimedean Scroll Bragg Reflectors as Chromatically Adaptive Fibers.

Daichi Kozawa, Pingwei Liu, Yuwen Zeng, Volodymyr B. Koman, Matthias Kuehne, Michael S. Strano.

Nano Letters, 20, 3067-3078 (2020). 10.1021/acs.nanolett.9b05004