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Synthesis of colloidal PbS nanosheets with nearly 100% success rate

Published online by Cambridge University Press:  15 May 2017

Shashini M Premathilaka
Affiliation:
Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH 43403,USA Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH 43403,USA
Zhoufeng Jiang
Affiliation:
Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH 43403,USA Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH 43403,USA
Antara Antu
Affiliation:
Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH 43403,USA
Joey Leffler
Affiliation:
Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH 43403,USA
Jianjun Hu
Affiliation:
Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, USA
Ajit Roy
Affiliation:
Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, USA
Liangfeng Sun
Affiliation:
Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH 43403,USA Center for Photochemical Sciences, Bowling Green State University, Bowling Green, OH 43403,USA
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Abstract

We report a robust method by which colloidal PbS nanosheets can be synthesized with nearly 100% success rate. It is achieved by replacing the lead acetate by lead oxide for preparation of the lead precursor. Acetic acid either injected externally or produced during the reaction can significantly affect the growth of the nanosheets. The existence of water in the reaction solution makes the nanosheets smaller in lateral size while the purity of trioctylphosphine has no significant effect on the nanosheet growth.

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Copyright © Materials Research Society 2017 

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References

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