A single-electron transistor made from a cadmium selenide nanocrystal
Article Abstract:
Electrical transport can be measured in a single-electron transistor made from a colloidal nanocrystal of cadmium selenide (CdSe). In this device, CdSe nanocrystals 5.5 nm in diameter are bound to two closely spaced gold leads by bifunctional linker molecules. The leads are made on a degenerately doped silicon wafer, which then functions as a gate to tune the charge state of the nanocrystal being investigated. This research can be regarded as a new form of spectroscopy for single nanocrystals.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Organization of 'nanocrystal molecules' using DNA
Article Abstract:
Attachment of single-stranded DNA oligonucleotides to individual gold nanocrystals allows construction of more complex 2- and 3-dimensional assemblies. Oligonucleotides of defined length and sequence lead to dimers and trimers on addition of a complementary single-stranded DNA template. These aggregates are discrete, well-defined, homogeneous and soluble. Patterning matter on the nanometer scale is beneficial for investigating physical phenomena expected in coupled nanocrystal systems.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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Colloidal nanocrystal heterostructures with linear and branched topology
Article Abstract:
A general approach for fabricating inorganically coupled colloidal quantum dots and rods, connected epitaxially at branched and linear junctions within single nanocrystals are demonstrated. Control over branching and composition throughout the growth of nanocrystal heterostructures allows investigation of potential applications ranging from quantum information processing to artificial photosynthesis.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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