Direct Layer-by-Layer Growth of Crystalline Ag-TCNQ Thin Films on Functionalized Au Substrate: How Critical Is the pH of Ag(I) Solution?

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Title:	Direct Layer-by-Layer Growth of Crystalline Ag-TCNQ Thin Films on Functionalized Au Substrate: How Critical Is the pH of Ag(I) Solution?
Authors:	LATHIKA, ASWANI SATHISH RANA, SHAMMI PRASOON, ANUPAM SINDHU, POOJA ROY, DEBASHREE BALLAV, NIRMALYA Dept. of Chemistry
Keywords:	Charge-Transfer-Complex Scanning-Electron-Microscopy CU-TCNQ Mechanism Devices 2020
Issue Date:	Dec-2020
Publisher:	American Chemical Society
Citation:	Journal of Physical Chemistry Letters, 11(24), 10548–10551.
Abstract:	Wet-chemical fabrication of a crystalline Ag-TCNQ (TCNQ = 7,7,8,8-tetracyanoquinodimethane) thin film on non-Ag substrate is challenging whereby the chemistry was powered by photon energy and/or electrical energy. We report for the first time, direct chemical growth of a Ag-TCNQ thin film on a functionalized Au substrate by employing the layer-by-layer (LbL) approach at ambient reaction conditions. Various Ag(I) salt precursors previously realized to be unsuitable for the fabrication of Ag-TCNQ thin films on non-Ag substrates ultimately gave rise to dense and uniform thin films of Ag-TCNQ. The crucial knob regulating the direct formation of the thin films of Ag-TCNQ was identified to be the pH of the respective Ag(I) solutions.
URI:	http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/5666 https://doi.org/10.1021/acs.jpclett.0c03229
ISSN:	1948-7185
Appears in Collections:	JOURNAL ARTICLES

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