@article {162,
	title = {A Luminescent Cu4 Cluster Film Grown by Electrospray Deposition: A Nitroaromatic Vapour Sensor},
	journal = {Nanoscale},
	volume = {15},
	year = {2023},
	month = {04/2023},
	pages = {8141-8147},
	type = {Communication},
	chapter = {8141},
	abstract = {<p>We present the fabrication and use of a film of carborane-thiol protected tetranuclear copper cluster with characteristic orange luminescence using ambient electrospray deposition (ESD). Charged microdroplets of the clusters produced by an electrospray tip deposit clusters at an air-water interface to form a film. Different microscopic and spectroscopic techniques characterized the porous surface structure of the film. Visible and rapid quenching of the emission of the film upon exposure to 2-nitrotoluene (2-NT) vapours at ambient condition was observed. Density functional theory (DFT) calculations established the favourable binding sites of 2-NT with the cluster. Desorption of 2-NT upon heating recovered the original luminescence, demonstrating the reusability of the sensor. Stable emission upon exposure to different organic solvents and quenching of it upon the exposure to 2, 4-dinitrotoluene and picric acid showed selectivity of the film to nitroaromatic species.</p>},
	keywords = {carborane, Copper, luminescence, nanocluster, nitro organic, sensor},
	doi = {https://doi.org/10.1039/D3NR00416C},
	url = {https://pubs.rsc.org/en/content/articlelanding/2023/nr/d3nr00416c},
	author = {Arijit Jana and B K Spoorthi and Akhil S Nair and Biswarup Pathak and Tomas Base and Thalappil Pradeep}
}
