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Ligand-induced changes in the characteristic size-dependent electronic energies of CdSe nanocrystals

Publication ,  Journal Article
Bloom, BP; Zhao, LB; Wang, Y; Waldeck, DH; Liu, R; Zhang, P; Beratan, DN
Published in: Journal of Physical Chemistry C
October 31, 2013

This work explores the electronic energy of CdSe nanoparticles as a function of nanoparticle (NP) size and capping ligand. Differential pulse voltammetry was used to determine the valence band edge of CdSe NPs that are capped with three different ligands (aniline, thiophenol, and phenylphosphonic acid), and the experimental values are compared with DFT calculations. These results show how the energy position and the size-dependent behavior of the energy bands of CdSe can be modulated by the chemical nature of the capping ligand. The computations underscore how the nature of the highest lying filled states of the nanoparticle can change with ligand type and how this can explain differences between previously reported size-dependent data on similar systems. The findings show that both the ligand and quantum confinement effects should be accounted for in modeling size-dependent effects for different NP-ligand systems. © 2013 American Chemical Society.

Duke Scholars

Published In

Journal of Physical Chemistry C

DOI

EISSN

1932-7455

ISSN

1932-7447

Publication Date

October 31, 2013

Volume

117

Issue

43

Start / End Page

22401 / 22411

Related Subject Headings

  • Physical Chemistry
  • 40 Engineering
  • 34 Chemical sciences
  • 10 Technology
  • 09 Engineering
  • 03 Chemical Sciences
 

Citation

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ICMJE
MLA
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Bloom, B. P., Zhao, L. B., Wang, Y., Waldeck, D. H., Liu, R., Zhang, P., & Beratan, D. N. (2013). Ligand-induced changes in the characteristic size-dependent electronic energies of CdSe nanocrystals. Journal of Physical Chemistry C, 117(43), 22401–22411. https://doi.org/10.1021/jp403164w
Bloom, B. P., L. B. Zhao, Y. Wang, D. H. Waldeck, R. Liu, P. Zhang, and D. N. Beratan. “Ligand-induced changes in the characteristic size-dependent electronic energies of CdSe nanocrystals.” Journal of Physical Chemistry C 117, no. 43 (October 31, 2013): 22401–11. https://doi.org/10.1021/jp403164w.
Bloom BP, Zhao LB, Wang Y, Waldeck DH, Liu R, Zhang P, et al. Ligand-induced changes in the characteristic size-dependent electronic energies of CdSe nanocrystals. Journal of Physical Chemistry C. 2013 Oct 31;117(43):22401–11.
Bloom, B. P., et al. “Ligand-induced changes in the characteristic size-dependent electronic energies of CdSe nanocrystals.” Journal of Physical Chemistry C, vol. 117, no. 43, Oct. 2013, pp. 22401–11. Scopus, doi:10.1021/jp403164w.
Bloom BP, Zhao LB, Wang Y, Waldeck DH, Liu R, Zhang P, Beratan DN. Ligand-induced changes in the characteristic size-dependent electronic energies of CdSe nanocrystals. Journal of Physical Chemistry C. 2013 Oct 31;117(43):22401–22411.
Journal cover image

Published In

Journal of Physical Chemistry C

DOI

EISSN

1932-7455

ISSN

1932-7447

Publication Date

October 31, 2013

Volume

117

Issue

43

Start / End Page

22401 / 22411

Related Subject Headings

  • Physical Chemistry
  • 40 Engineering
  • 34 Chemical sciences
  • 10 Technology
  • 09 Engineering
  • 03 Chemical Sciences