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* Nanoparticle size can affect absorption. This combined with the fact that there are many possible semiconducting nanoparticles allows for highly customizable bandgaps that can be easily tuned to certain frequencies, which would be advantageous in tandem solar cells.
* Nanoparticles with size near their Bohr radius can generate two excitons when struck by a sufficiently energetic photon.<ref name="dx">{{cite journal|last=Saunders|first=Brian R.|title=Hybrid polymer/nanoparticle solar cells: Preparation, principles and challenges|journal=Journal of Colloid and Interface Science|date=March 2012|volume=369|issue=1|pages=1–15|doi=10.1016/j.jcis.2011.12.016|pmid=22209577}}</ref>
* * Considering the potential of some chalcopyrite systems like AgInSe2 etc. , recently organic inorganic blends based on AgInSe2 nanoparticles are studied for possible photovoltaic applications.
====Structure and processing====
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