Mechanical and electronic-structure properties of compressed CdSetetrapod nanocrystals

Journal Article · Thu Jan 18 00:00:00 EST 2007 · Journal of Nanoscience and Nanotechnology

OSTI ID:928490

Schrier, Joshua; Lee, Byounghak; Wang, Lin-Wang

The coupling of mechanical and optical properties insemiconductor nanostructures can potentially lead to new types ofdevices. This work describes our theoretical examination of themechanical properties of CdSe tetrapods under directional forces, such asmay be induced by AFM tips. In addition to studying the general behaviorof the mechanical properties under modifications of geometry,nanocrystal-substrate interaction, and dimensional scaling, ourcalculations indicate that mechanical deformations do not lead to largechanges in the band-edge state eigenenergies, and have only a weak effecton the oscillator strengths of the lowest energy transitions.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE Director. Office of Science. Basic EnergySciences
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 928490
• Report Number(s): LBNL-62312; R&D Project: K11704; BnR: KC0202030; TRN: US200815%%349
• Journal Information: Journal of Nanoscience and Nanotechnology, Vol. 8, Issue 4; Related Information: Journal Publication Date: 04/2008
• Country of Publication: United States
• Language: English

Related Subjects

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ELECTRONIC STRUCTURE
GEOMETRY
MECHANICAL PROPERTIES
MODIFICATIONS
NANOSTRUCTURES
OPTICAL PROPERTIES
OSCILLATOR STRENGTHS
nanoscience tetrapod nanocrystal CdSe ESCAN SEPM