We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Carrier multiplication between interacting nanocrystals for fostering silicon-based photovoltaics.
- Authors
Govoni, Marco; Marri, Ivan; Ossicini, Stefano
- Abstract
The conversion of solar radiation into electric current with high efficiency is one of the most important topics of modern scientific research, as it holds great potential as a source of clean and renewable energy. Exploitation of interaction between nanocrystals seems to be a promising route to the establishment of third-generation photovoltaics. Here, we adopt a fully ab initio scheme to estimate the role of nanoparticle interplay in the carrier multiplication dynamics of interacting silicon nanocrystals. Energy and charge transfer-based carrier multiplication events are studied as a function of nanocrystal separation, demonstrating the benefits induced by the wavefunction sharing regime. We prove the relevance of these recombinative mechanisms for photovoltaic applications in the case of silicon nanocrystals arranged in dense arrays, quantifying at an atomic scale which conditions maximize the outcome.
- Subjects
SILICON crystals; NANOCRYSTALS; PHOTOVOLTAIC power generation; SOLAR radiation; ELECTRIC currents; ENERGY consumption; ENERGY conversion
- Publication
Nature Photonics, 2012, Vol 6, Issue 10, p672
- ISSN
1749-4885
- Publication type
Article
- DOI
10.1038/nphoton.2012.206