Gigantic absorption enhancement using nanostructured metal films: application to organic solar cells

Yuanjie Pang; Reuven Gordon

doi:10.1117/12.871062

22 September 2010 Gigantic absorption enhancement using nanostructured metal films: application to organic solar cells

Yuanjie Pang, Reuven Gordon

Proceedings Volume 7750, Photonics North 2010; 77502O (2010) https://doi.org/10.1117/12.871062
Event: Photonics North 2010, 2010, Niagara Falls, Canada

Abstract

Organic thin film solar cells have been researched as a low-cost alternative in solar energy technologies, but they usually have lower light harvesting efficiency. In this manuscript, a nanostructured metal film (NMF) fabricated based on self-assembly techniques is studied as a way to enhance the light absorbance in the absorbing layer, by the excitation of localized surface plasmon resonance. Finite-difference time-domain computations shows a 7-fold enhancement to the light absorbance in a 10 nm poly(3-hexylthiophene) (P3HT) layer on the NMF comparing to on flat metal. This result shows the possibility of an organic solar cell with a very thin absorbing layer and yet having a high efficiency. The NMF is also advantageous in its mass-producibility. Preliminary experimental results are also included.

Citation Download Citation

Yuanjie Pang and Reuven Gordon "Gigantic absorption enhancement using nanostructured metal films: application to organic solar cells", Proc. SPIE 7750, Photonics North 2010, 77502O (22 September 2010); https://doi.org/10.1117/12.871062

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