Plasmonic-enhanced polymer photovoltaic devices incorporating solution-processable metal nanoparticles

Fang-Chung Chen; Jyh-Lih Wu; Chia-Ling Lee; Yi Hong; Chun-Hong Kuo; Huang, Michael H.
July 2009
Applied Physics Letters;7/6/2009, Vol. 95 Issue 1, p013305
Academic Journal
We have explored the effect of gold nanoparticle (Au NP)-induced surface plasmons on the performance of organic photovoltaic devices (OPVs). The power conversion efficiency of these OPVs was improved after blending the Au NPs into the anodic buffer layer. The addition of Au NPs increased the rate of exciton generation and the probability of exciton dissociation, thereby enhancing the short-circuit current density and the fill factor. We attribute the improvement in device performance to the local enhancement in the electromagnetic field originating from the excitation of the localized surface plasmon resonance.


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