Dimension Engineering of Stimuli‐Responsive 1D Molecular Crystals into Unusual 2D and 3D Zigzag Waveguides

Author:

Annadhasan Mari1,Vinod Kumar Avulu1,Giri Prasenjit2,Nandy Sridatri1,Panda Manas K.2,Jovan Jose K. V.1,Chandrasekar Rajadurai1ORCID

Affiliation:

1. School of Chemistry and Centre for Nanotechnology University of Hyderabad Gachibowli, Hyderabad 500 046 Telangana India

2. Department of Chemistry Jadavpur University Kolkata 700032 India

Abstract

AbstractWe demonstrate an innovative technique to achieve organic 2D and 3D waveguides with peculiar shapes from an acicular, stimuli‐responsive molecular crystal, (2Z,2′Z)‐3,3′‐(anthracene‐9,10‐diyl)bis(2‐(3,5‐bis(trifluoromethyl)phenylacrylonitrile), Ant‐CF3. The greenish‐yellow fluorescent (FL) Ant‐CF3 molecular crystals exhibit laser power‐dependent permanent mechanical bending in 2D and 3D. Investigation of a single‐crystal using spatially‐resolved Raman/FL/electron microscopy, and theoretical calculations revealed photothermal (Z,E)/(E,E) isomerization‐assisted transition from crystalline to amorphous phase at the laser‐exposed regions. This phenomenon facilitates the dimension engineering of a 1D crystal waveguide into 2D waveguide on a substrate or a 3D waveguide in free space. The bends can be used as interconnection points to couple different optical elements. The presented technique has broader implications in organic photonics and other crystal‐related photonic technologies.

Publisher

Wiley

Subject

General Medicine

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