26 September 2016 Molecular diodes in optical rectennas
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Abstract
The photo conversion efficiencies of the 1st and 2nd generat ion photovoltaic solar cells are limited by the physical phenomena involved during the photo-conversion processes. An upper limit around 30% has been predicted for a monojunction silicon solar cell. In this work, we study 3rd generation solar cells named rectenna which could direct ly convert visible and infrared light into DC current. The rectenna technology is at odds with the actual photovoltaic technologies, since it is not based on the use of semi-conducting materials.

We study a rectenna architecture consist ing of plasmonic nano-antennas associated with rectifying self assembled molecular diodes. We first opt imized the geometry of plasmonic nano-antennas using an FDTD method. The optimal antennas are then realized using a nano-imprint process and associated with self assembled molecular diodes in 11- ferrocenyl-undecanethiol. Finally, The I(V) characterist ics in darkness of the rectennas has been carried out using an STM. The molecular diodes exhibit averaged rect ification ratios of 5.
Conference Presentation
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David Duché, David Duché, Ujwol Palanchoke, Ujwol Palanchoke, Luigi Terracciano, Luigi Terracciano, Florian-Xuan Dang, Florian-Xuan Dang, Lionel Patrone, Lionel Patrone, Judikael Le Rouzo, Judikael Le Rouzo, Téodore Silviu Balaban, Téodore Silviu Balaban, Claude Alfonso, Claude Alfonso, Ahmed Charai, Ahmed Charai, Olivier Margeat, Olivier Margeat, Jorg Ackermann, Jorg Ackermann, Cécile Gourgon, Cécile Gourgon, Jean-Jacques Simon, Jean-Jacques Simon, Ludovic Escoubas, Ludovic Escoubas, } "Molecular diodes in optical rectennas", Proc. SPIE 9929, Nanostructured Thin Films IX, 99290T (26 September 2016); doi: 10.1117/12.2237734; https://doi.org/10.1117/12.2237734
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