Method for fabricating a high efficiency bio-photovoltaic cells by using plasmonic silver nanoparticles and natural extracted graminoids

A method for fabricating a high efficiency bio-photovoltaic cell using plasmonic silver nanoparticles and naturally extracted graminoids, comprising:

• a first process of extracting graminoids from natural grasses;
• a second process of preparing silver nanoparticles and a sheet type titanium dioxide electron acceptor;
• a third process of laminating the sheet type titanium dioxide electron acceptor, the silver nanoparticles and a naturally extracted photo sensitizer on a transparent electrode to prepare a photo-electrode;
• and
• a fourth process of preparing a platinum coated counter-electrode having platinum and injecting an electrolyte between the photo-electrode and the counter-electrode to complete a photovoltaic cell,
• wherein the inserted silver nanoparticles are coupled to a bio-photo sensitizer through an organic ligand material while exhibiting surface plasmon effect.