Issue 10, 2023

Inclination of polarized illumination increases symmetry of structures grown via inorganic phototropism

Abstract

Inclination of unpatterned, linearly polarized illumination in the plane of the electric field oscillation effected increased directional feature alignment and decreased off-axis order in Se–Te deposits generated by inorganic phototropic growth relative to that produced using normal incidence. Optically based growth simulations reproduced the experimental results indicating a photonic basis for the morphology change. Modeling of the light scattering at the growth interface revealed that illumination inclination enhances scattering that localizes the optical field along the polarization plane and suppresses cooperativity in defect-driven scattering. Thus, the symmetry of the deposited structures increased as the asymmetry of the illumination increased, as measured by the inclination of the illumination incidence away from the surface normal.

Graphical abstract: Inclination of polarized illumination increases symmetry of structures grown via inorganic phototropism

Supplementary files

Article information

Article type
Communication
Submitted
02 Jun 2023
Accepted
26 Jul 2023
First published
02 Aug 2023

Mater. Horiz., 2023,10, 4251-4255

Author version available

Inclination of polarized illumination increases symmetry of structures grown via inorganic phototropism

M. C. Meier, N. S. Lewis and A. I. Carim, Mater. Horiz., 2023, 10, 4251 DOI: 10.1039/D3MH00839H

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