Focus
Quantum dot solids
- Focus issue:
- December 2015 Volume 10 No 12
Colloidal quantum dots are often referred to as artificial atoms, primarily because of their atom-like electron energy spectrum. Like atoms, they can form ordered structures that are commonly referred to as quantum dot solids. In this focus we provide an overview of the electronic properties of quantum dot solids. In particular, we explore the developments that have led to the observation of high electron mobility, and the challenges and opportunities for the incorporation of quantum dot solids in optoelectronic devices.
Editorial
When the dots are joined p993
doi:10.1038/nnano.2015.301
We consider the potential of colloidal quantum dot solids for optoelectronic applications.
Commentaries
Opportunities and challenges for quantum dot photovoltaics pp994 - 997
Maksym V. Kovalenko
doi:10.1038/nnano.2015.284
Although research into colloidal quantum dots has led to promising results for the realization of photovoltaic devices, a better understanding of the robustness and stability of these devices is necessary before commercial competiveness can be claimed.
Prospects for thermoelectricity in quantum dot hybrid arrays pp997 - 1001
Jeffrey J. Urban
doi:10.1038/nnano.2015.289
The electronic, chemical and mechanical properties of quantum dot structures may lead to thermoelectric devices with a range of advantages with respect to existing ones based on bulk polycrystalline materials.
What future for quantum dot-based light emitters? pp1001 - 1004
Arto Nurmikko
doi:10.1038/nnano.2015.288
Synthesis of semiconductor colloidal quantum dots by low-cost, solution-based methods has produced an abundance of basic science. Can these materials be transformed to high-performance light emitters to disrupt established photonics technologies, particularly semiconductor lasers?
Review
Charge transport in strongly coupled quantum dot solids pp1013 - 1026
Cherie R. Kagan & Christopher B. Murray
doi:10.1038/nnano.2015.247
This Review discusses the advances in synthesis, assembly, ligand treatments and doping that have enabled the fabrication of high-mobility quantum dot solids.
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