Photovoltaic devices employing ternary PbSxSe1-x nanocrystals.
basic_science · Level V
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- Record sourced from PubMed, PMID 19351196.
- Also identified by DOI 10.1021/nl900388a.
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Abstract
We report solar cells based on highly confined nanocrystals of the ternary compound PbS(x)Se(1-x). Crystalline, monodisperse alloyed nanocrystals are obtained using a one-pot, hot injection reaction. Rutherford back scattering and energy-filtered transmission electron microscopy suggest that the S and Se anions are uniformly distributed in the alloy nanoparticles. Photovoltaic devices made using ternary nanoparticles are more efficient than either pure PbS or pure PbSe based nanocrystal devices.