Jump to main content
Jump to site search

Issue 13, 2017
Previous Article Next Article

Hybrid silicon–carbon nanostructures for broadband optical absorption

Author affiliations

Abstract

Proper design of nanomaterials for broadband light absorption is a key factor for improving the conversion efficiency of solar cells. Here we present a hybrid design of silicon–carbon nanostructures with silicon clusters coated by carbon cages, i.e., Sim@C2n for potential solar cell application. The optical properties of these hybrid nanostructures were calculated based on time dependent density function theory (TDDFT). The results show that the optical spectra of Sim@C2n are very different from those of pure Sim and C2n clusters. While the absorption spectra of pure carbon cages and Sim clusters exhibit peaks in the UV region, those of the Sim@C2n nanostructures exhibit a significant red shift. Superposition of the optical spectra of various Sim@C2n nanostructures forms a broad-band absorption, which extends to the visible light and infrared regions. The broadband adsorption of the assembled Sim@C2n nanoclusters may provide a new approach for the design of high efficiency solar cell nanomaterials.

Graphical abstract: Hybrid silicon–carbon nanostructures for broadband optical absorption

Back to tab navigation

Supplementary files

Publication details

The article was received on 05 Dec 2016, accepted on 18 Jan 2017 and first published on 25 Jan 2017


Article type: Paper
DOI: 10.1039/C6RA27764K
Citation: RSC Adv., 2017,7, 8070-8076
  • Open access: Creative Commons BY-NC license
  •   Request permissions

    Hybrid silicon–carbon nanostructures for broadband optical absorption

    W. Yang, W. Lu, K. M. Ho and C. Z. Wang, RSC Adv., 2017, 7, 8070
    DOI: 10.1039/C6RA27764K

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements