One-Step Integration of a Multiple-Morphology Gold Nanoparticle Array on a TiO2 Film via a Facile Sonochemical Method for Highly Efficient Organic Photovoltaics Academic Article uri icon

abstract

  • Integrating multiple-morphology plasmonic metal nanostructures into organic photovoltaics (OPVs) is highly desirable to enhance the efficiency of solar energy conversion because of their broadband plasmonic absorption. However, it remains challenging to develop facile fabrication methods that enable plasmonic metal nanoparticle (NP) arrays with multiple morphologies, a low degree of aggregation, and large-scale production. Herein, we report a one-step integration of well-dispersed and size-tunable multiple-morphology gold (Au) NP arrays on titanium dioxide (TiO2) thin films via a facile sonochemical route. The multiple- morphology Au NP arrays are successfully employed to enhance the photovoltaic performance of bulk heterojunction OPVs. The multiple-morphology Au NPs exhibited a broad absorption band, which resulted in a large overlap with the absorption band of the …

publication date

  • January 1, 2018