Steiner, Dov and Azulay, Doron and Aharoni, Assaf and Salant, Assaf and Banin, Uri and Millo, Oded (2008) Electronic structure and self-assembly of cross-linked semiconductor nanocrystal arrays. NANOTECHNOLOGY, 19 (6).
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Official URL: http://www.iop.org/EJ/abstract/-search=66090765.1/...
We studied the electronic level structure of assemblies of InAs quantum dots and CdSe nanorods cross-linked by 1,4-phenylenediamine molecules using scanning tunneling spectroscopy. We found that the bandgap in these arrays is reduced with respect to the corresponding ligand-capped nanocrystal arrays. In addition, a pronounced sub-gap spectral structure commonly appeared which can be attributed to unpassivated nanocrystal surface states or associated with linker-molecule-related levels. The exchange of the ligands by the linker molecules also affected the structural array properties. Most significantly, clusters of close-packed standing CdSe nanorods were formed.
|Uncontrolled Keywords:||QUANTUM DOTS; LEVEL STRUCTURE; SPECTROSCOPY; NANORODS; SOLIDS; FIELD|
|Subjects:||Material Science > Functional and hybrid materials|
Analytical Science > Microscopy and probe methods
|Deposited On:||24 Sep 2009 11:52|
|Last Modified:||24 Sep 2009 11:52|
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