Tandem inorganic/organic hybrid solar cell using a PbSe nanocrystal photoconductor for carrier multiplication

Sung Jin Kim, Won Jin Kim, Alexander N. Cartwright, Paras N. Prasad

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To achieve efficient carrier extraction from nanocrystal quantum dots, we introduce a novel tandem cell device using PbSe nanocrystal quantum dots and a P3HT/PCBM bulk hetero junction cell. The device is fabricated using an all solution based process. The device consists of a hydrazine treated PbSe nanocrystal photoconductive film coupled to the P3HT/PCBM bulk hetero junction cell. In this work, the photocurrent from the PbSe nanocrystal photoconductive layer, and the role of carrier multiplication at UV wavelengths, is elucidated. By using light biased spectral response measurements, we successfully demonstrate an enhancement of quantum efficiency at photon energies greater than three times the bandgap of the PbSe nanocrystals. Additionally, this tandem structured device shows a self-passivation property that provides protection from UV irradiation to the underlying polymer cell.

Original languageEnglish (US)
Title of host publicationNanoscale Photonic and Cell Technologies for Photovoltaics
DOIs
StatePublished - Nov 21 2008
Externally publishedYes
EventNanoscale Photonic and Cell Technologies for Photovoltaics - San Diego, CA, United States
Duration: Aug 11 2008Aug 13 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7047
ISSN (Print)0277-786X

Other

OtherNanoscale Photonic and Cell Technologies for Photovoltaics
CountryUnited States
CitySan Diego, CA
Period8/11/088/13/08

Keywords

  • Carrier multiplication
  • PbSe
  • Polymer solar cell
  • Self-passivating
  • Tandem cells

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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  • Cite this

    Kim, S. J., Kim, W. J., Cartwright, A. N., & Prasad, P. N. (2008). Tandem inorganic/organic hybrid solar cell using a PbSe nanocrystal photoconductor for carrier multiplication. In Nanoscale Photonic and Cell Technologies for Photovoltaics [70470O] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7047). https://doi.org/10.1117/12.796111