Photoinduced charge transfer between poly(3-hexylthiophene) and germanium nanowires

Aurelien Du Pasquier, Daniel D T Mastrogiovanni, Lauren A. Klein, Tong Wang, Eric Garfunkel

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Germanium nanowires (GeNWs) were used to enhance the properties of organic photovoltaic devices. GeNWs were grown to a length of 1-5 μm on Si O2 by the vapor-liquid-solid method catalyzed by 20 nm Au seeds. Once grown, the GeNWs were dispersed in solution with poly(3-hexylthiophene) and spin cast into films. The photoluminescence and external quantum efficiency of the films indicated a significant increase in exciton dissociation and photocurrent generation. The results imply that the GeNWs may act as an electron acceptor for bulk heterojunction hybrid-inorganic/organic photovoltaic devices. The impacts of GeNW on device characteristics are discussed.

Original languageEnglish
Article number183501
JournalApplied Physics Letters
Volume91
Issue number18
DOIs
Publication statusPublished - 2007

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germanium
nanowires
charge transfer
photocurrents
casts
heterojunctions
quantum efficiency
seeds
excitons
dissociation
vapors
photoluminescence
liquids
electrons

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Photoinduced charge transfer between poly(3-hexylthiophene) and germanium nanowires. / Du Pasquier, Aurelien; Mastrogiovanni, Daniel D T; Klein, Lauren A.; Wang, Tong; Garfunkel, Eric.

In: Applied Physics Letters, Vol. 91, No. 18, 183501, 2007.

Research output: Contribution to journalArticle

Du Pasquier, Aurelien ; Mastrogiovanni, Daniel D T ; Klein, Lauren A. ; Wang, Tong ; Garfunkel, Eric. / Photoinduced charge transfer between poly(3-hexylthiophene) and germanium nanowires. In: Applied Physics Letters. 2007 ; Vol. 91, No. 18.
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