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Zherebetskyy D, Scheele M, Zhang Y, et al. Hydroxylation of the surface of PbS nanocrystals passivated with oleic acid. Science. 2014;344(6190):1380-4doi: 10.1126/science.1252727.
Zherebetskyy, D., Scheele, M., Zhang, Y., Bronstein, N., Thompson, C., Britt, D., Salmeron, M., Alivisatos, P., & Wang, L. W. (2014). Hydroxylation of the surface of PbS nanocrystals passivated with oleic acid. Science (New York, N.Y.), 344(6190), 1380-4. https://doi.org/10.1126/science.1252727
Zherebetskyy, Danylo, et al. "Hydroxylation of the surface of PbS nanocrystals passivated with oleic acid." Science (New York, N.Y.) vol. 344,6190 (2014): 1380-4. doi: https://doi.org/10.1126/science.1252727
Zherebetskyy D, Scheele M, Zhang Y, Bronstein N, Thompson C, Britt D, Salmeron M, Alivisatos P, Wang LW. Hydroxylation of the surface of PbS nanocrystals passivated with oleic acid. Science. 2014 Jun 20;344(6190):1380-4. doi: 10.1126/science.1252727. Epub 2014 May 29. PMID: 24876347.
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Science. 2014 Jun 20;344(6190):1380-4. doi: 10.1126/science.1252727. Epub 2014 May 29.

Hydroxylation of the surface of PbS nanocrystals passivated with oleic acid.

Science (New York, N.Y.)

Danylo Zherebetskyy, Marcus Scheele, Yingjie Zhang, Noah Bronstein, Christopher Thompson, David Britt, Miquel Salmeron, Paul Alivisatos, Lin-Wang Wang

Affiliations

  1. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
  2. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720, USA.
  3. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Applied Science and Technology Graduate Program, University of California at Berkeley, Berkeley, CA 94720, USA.
  4. Department of Chemistry, University of California at Berkeley, Berkeley, CA 94720, USA.
  5. The Molecular Foundry, Lawrence Berkeley National Laboratory, One Cyclotron Road, Berkeley, CA 94720, USA.
  6. Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. [email protected].

PMID: 24876347 DOI: 10.1126/science.1252727

Abstract

Controlling the structure of colloidal nanocrystals (NCs) is key to the generation of their complex functionality. This requires an understanding of the NC surface at the atomic level. The structure of colloidal PbS NCs passivated with oleic acid has been studied theoretically and experimentally. We show the existence of surface OH(-) groups, which play a key role in stabilizing the PbS(111) facets, consistent with x-ray photoelectron spectroscopy as well as other spectroscopic and chemical experiments. The role of water in the synthesis process is also revealed. Our model, along with existing observations of NC surface termination and passivation by ligands, helps to explain and predict the properties of NCs and their assemblies.

Copyright © 2014, American Association for the Advancement of Science.

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