Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/9402
Title: Photoconductivity Switching in Semiconducting Two-Dimensional Crystals via Molecular Tetris
Authors: Koner, Kalipada
SURY, ADHRA
PILLAI, PRAMOD P. et al.
Dept. of Chemistry
Keywords: Crystal structure
Intercalation
Iodine
Molecules
Photonics
2025-MAR-WEEK3
TOC-MAR-2025
2025
Issue Date: Mar-2025
Publisher: American Chemical Society
Citation: Journal of the American Chemical Society, 147(11), 9972–9980.
Abstract: Two-dimensional organic materials are mainly constructed by using orthogonal anisotropic connectivity of covalent bonding and π–π stacking. The noncovalent connectivity between building blocks is presumed to be too delicate to stabilize the two-dimensional (2D) layers. Contrary to this assumption, we constructed graphite-like 2D layered material by utilizing pure noncovalent connectivity, i.e., weak intermolecular and π–π interaction via a molecular Tetris strategy. We produce X-ray mountable single crystals comprising polycyclic aromatic heterocycles by employing a single-crystal-to-dissolution-to-single-crystal transformation methodology. The macromechanical analysis of this layered crystal shows shearing behavior, which is quantified using nanoindentation experiments. The 2D lattice’s layer space allows reversible intercalation–deintercalation of iodine, which enhances the photoconductivity by 17 folds. Combined efforts of X-ray diffraction, solid-state spectroscopy, and electrochemical studies established the mechanism of intercalation and resulting photoconductivity enhancement.
URI: https://doi.org/10.1021/jacs.5c01223
http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/9402
ISSN: 0002-7863
1520-5126
Appears in Collections:JOURNAL ARTICLES

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