Site-specific growth of CdS nanostructures

The authors report the successful site-specific deposition of cadmium sulfide (CdS) using a focused electron beam and a liquid-phase solution of cadmium salts and thiourea as the primary reagents. Nanostructures with a minimum feature size of 84 nm are patterned with little to no extraneous depositi...

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Veröffentlicht in:	Nanotechnology 2013-12, Vol.24 (50), p.505305-7
Hauptverfasser:	Bresin, M, Nadimpally, B R, Nehru, N, Singh, V P, Hastings, J T
Format:	Artikel
Sprache:	eng
Schlagworte:	Cadmium Cadmium sulfides Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Deposition Exact sciences and technology Liquids Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties Materials science Methods of nanofabrication Nanoscale pattern formation Nanostructure Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures Patterning Physics Precursors Sulfides Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties)
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Zusammenfassung:	The authors report the successful site-specific deposition of cadmium sulfide (CdS) using a focused electron beam and a liquid-phase solution of cadmium salts and thiourea as the primary reagents. Nanostructures with a minimum feature size of 84 nm are patterned with little to no extraneous deposition. The composition and phase of the CdS nanostructures is investigated by energy dispersive x-ray spectroscopy, transmission electron microscopy and photoluminescence spectroscopy. Critically, these results demonstrate one-step patterning of a semiconducting material from a multi-reagent liquid precursor.
ISSN:	0957-4484 1361-6528
DOI:	10.1088/0957-4484/24/50/505305