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Effect of metal cathode reflectance on the exciton-dissociation efficiency in heterojunction organic solar cells
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/content/aip/journal/apl/94/10/10.1063/1.3098472
2009-03-11
2014-12-28

Abstract

Effects of different cathode metals, such as aluminum, calcium, and silver, and difference in their reflectivity on the photocurrent generation in pentacene- heterojunction solar cell are presented. Using optical transfer matrix calculations, we find that metal reflectivity has a profound impact on the electrical field confinement within the multilayer device structures. Silver as cathode offers better optical-field confinement close to the pentacene- interface over generally preferred aluminum cathode. External quantum efficiency measurements confirm higher exciton dissociation efficiency and high photocurrent generation ability of silver over aluminum cathode making the choice of cathode metal an important parameter in device optimization.

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Scitation: Effect of metal cathode reflectance on the exciton-dissociation efficiency in heterojunction organic solar cells
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/10/10.1063/1.3098472
10.1063/1.3098472
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