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 language | English |
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Article number | 183501 |
Journal | Applied Physics Letters |
Volume | 91 |
Issue number | 18 |
DOIs | |
Publication status | Published - 2007 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)