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Ultrathin Colloidal PbS/CdS Core/Shell Nanosheets

Published online by Cambridge University Press:  02 May 2017

Simeen Khan ,
Zhoufeng Jiang ,
Shashini M Premathilka ,
Jianjun Hu ,
Andrey Voevodin ,
Paul J. Roland ,
Randy J. Ellingson  and
Liangfeng Sun
Simeen Khan
Affiliation:
Department of Physics and Astronomy, 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 of Photochemical Sciences, Bowling Green State University, Bowling Green, OH 43403,USA
Shashini M Premathilka
Affiliation:
Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH 43403,USA Center of Photochemical Sciences, 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, OH 45433, USA
Andrey Voevodin
Affiliation:
Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH 45433, USA
Paul J. Roland
Affiliation:
Department of Physics and Astronomy, Wright Center for Photovoltaics Innovation and Commercialization, School of Solar and Advanced Renewable Energy, University of Toledo, Toledo, Ohio 43606, USA
Randy J. Ellingson
Affiliation:
Department of Physics and Astronomy, Wright Center for Photovoltaics Innovation and Commercialization, School of Solar and Advanced Renewable Energy, University of Toledo, Toledo, Ohio 43606, USA
Liangfeng Sun*
Affiliation:
Department of Physics and Astronomy, Bowling Green State University, Bowling Green, OH 43403,USA Center of Photochemical Sciences, Bowling Green State University, Bowling Green, OH 43403,USA
*
*(Email: [email protected])
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Abstract

Emissive PbS/CdS core/shell nanosheets are synthesized using a cation-exchange method. A significant blue-shift of the photoluminescence is observed, indicating a stronger quantum confinement in the PbS core as its thickness is reduced to eight atomic layers. High resolution transmission-electron-microscopy images of the cross-sections of the core/shell nanosheets show atomically sharp interfaces between PbS and CdS. Accurate analysis of the thickness of each layer reveals the relationship between the energy-gap and the thickness in the extremely one-dimensionally confined nanostructure.

Keywords

nanostructurecore/shelloptoelectronic
Type
Articles
Information
MRS Advances , Volume 2 , Issue 60: Nanomaterials , 2017 , pp. 3685 - 3690
Copyright
Copyright © Materials Research Society 2017 

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References

REFERENCES

Dogan, S., Bielewicz, T., Cai, Y. & Klinke, C. Appl. Phys. Lett. 101, 073102 (2012).Google Scholar
Dogan, S., Bielewicz, T., Lebedeva, V. & Klinke, C. Nanoscale 7, 4875 (2015).Google Scholar
Dasgupta, N. P., Lee, W. & Prinz, F. B. Chem. Mater. 21, 3973 (2009).Google Scholar
Dasgupta, N. P., Lee, Wonyoung, Holme, T. P. & Prinz, F. B. Atomic Layer Deposition of PbS-ZnS quantum wells for high-efficiency solar cells (Photovoltaic Specialists Conference (PVSC), 2009 34th IEEE, 2009).Google Scholar
Acharya, S., Sarma, D. D., Golan, Y., Sengupta, S. & Ariga, K. J. Am. Chem. Soc. 131, 11282 (2009).CrossRefGoogle Scholar
Schliehe, C. et al. . Science 329, 550 (2010).CrossRefGoogle Scholar
Acharya, S. et al. . Nano Lett. 13, 409 (2013).Google Scholar
Joo, J., Son, J. S., Kwon, S. G., Yu, J. H. & Hyeon, T. J. Am. Chem. Soc. 128, 5632 (2006).CrossRefGoogle Scholar
Ithurria, S. & Dubertret, B. J. Am. Chem. Soc. 130, 16504 (2008).CrossRefGoogle Scholar
Son, J. et al. . Angewandte Chemie International Edition 48, 6861 (2009).Google Scholar
Ithurria, S. et al. . Nature Materials 10, 936 (2011).Google Scholar
van der Ziel, J. P., Dingle, R., Miller, R. C., Wiegmann, W. & Nordland, W. A. Appl. Phys. Lett. 26, 463 (1975).Google Scholar
Yang, J., Son, J. S., Yu, J. H., Joo, J. & Hyeon, T. Chem. Mater. 25, 1190 (2013).Google Scholar
Khan, S. et al. . Chem. Mater. 28, 5342 (2016).Google Scholar
Bhandari, G. B. et al. . Chem. Mater. 26, 5433 (2014).CrossRefGoogle Scholar
Pietryga, J. M. et al. . J. Am. Chem. Soc. 130 , 4879 (2008). CrossRefGoogle Scholar
Moroz, P. et al. . Chem. Mater. 26, 4256 (2014). CrossRefGoogle Scholar
Aerts, M. et al. . Nat Commun 5, 3789 (2014). Google Scholar
Jiang, Z. et al. . Phys. Chem. Chem. Phys. 17, 23303 (2015). Google Scholar
Lechner, R. T. et al. . Chem. Mater. 26, 5914 (2014). Google Scholar
Casavola, M. et al. . Chem. Mater. 24, 294 (2012). Google Scholar
Bouet, C. et al. . Chem. Mater. 26, 3002 (2014). Google Scholar
Bartnik, A. C., Wise, F. W., Kigel, A. & Lifshitz, E. Phys. Rev. B 75, 245424 (2007). Google Scholar
Moreels, I. et al. . ACS Nano 3, 3023 (2009).Google Scholar