Proceedings of nanoGe September Meeting 2017 (NFM17)
Publication date: 20th June 2016
Role of Disorder in Atomically-Coherent Quantu-Dot Solids
Recently, the fabrication of quasi-two-dimensional superlattices of oriented and epitaxially-connected nanocrystals was reported. The structures exhibit both short- and long-range order. Calculations of the electronic states of such “atomically-coherent” assemblies reveal bandwidths that imply promising transport properties. We will report on the synthesis of atomically-coherent superlattices of PbSe nanocrystals, along with structural characterization by x-ray diffraction and high-resolution electron microscopy. Studies of charge transport show that disorder plays a major role in the properties of existing nanocrystal solids. Prospects for achieving true band transport in these structures will be discussed.
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