Surface Modification at Nanoscale; Nanoparticle-Nanowire Transition

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https://ntrs.nasa.gov/search.jsp?R=20180004179&hterms=surface+modification+nanoscale&qs=N%3D0%26Ntk%3DAll%26Ntt%3Dsurface%2520modification%2520at%2520nanoscale%26Ntx%3Dmode%2520matchallpartial

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UMBC Chemistry & Biochemistry Department
UMBC Computer Science and Electrical Engineering Department
UMBC Faculty Collection

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Date

2018-04-15

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Technical Report
Text

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.

Subjects

NANOSTRUCTURE GROWTH
NANOPARTICLES
NANOWIRES
SURFACE PROPERTIES
SYNTHETIC BIOLOGY
NANOCOMPOSITES

Abstract

Binary, ternary and quaternary oxides and selenides have been developed and used in multiple applications including high power lasers, detectors, dielectric energy storage and variety of optical devices. These materials have been grown by Bridgman, physical vapor transport (PVT), chemical vapor transport (CVT) methods and flux methods in the form of bulk thin film, nanocrystals and nanowires. With increasing thrust of bio applications, nanoparticles it is essential to understand nucleation and nanomorphological transition during drug delivery, growth of nanoengineered bio composites in body, grain growth and final morphology. Addition of fluorides and selenides have increased significantly in synthetic tissue constituents because of some advantages in adhesion and stability. We have performed experiments on multinary oxides Sr-Ba-O-F, Se-Tl-As and Se-Pb-Sn-Se using several growth methods to demonstrate nanoparticle and nanowire transition. This study has great potential to increase surface area and also provides understanding to the mechanism of nanowire growth.