Next Generation Solar Cells Based on Nanostructures

Advanced Diamond Solutions, Inc. proposes the development of a novel high efficiency solar cell design based on amorphous diamond nanotip thermoelectric power generation properties. Amorphous diamond has a unique set of material characteristics stemming from its combination of graphitic, diamond and carbon-nanotube structures. Amorphous diamond inherently possesses numerous discrete energy states, lending to the excitation of electrons by relatively low heat. Our proposed solar cell is capable of efficiencies of 60% or higher, starting at sub-200C temperatures, with efficiencies increasing over higher temperatures. Initial peer reviewed lab results have confirmed the extent of potential efficiencies. Amorphous diamond solar cell manufacturing will be less expensive that traditional solar cells; the material can be deposited inexpensively on large surface areas of metals or nonmetallic materials using deposition techniques such as cathode arc or laser ablation. Solar cell systems may be designed using multiple methods, including using vacuum, dielectric materials and/or a small running current to increase efficiency. Flexible solar cells may also be created by depositing amorphous diamond onto polyimide wafers, as well as other materials. Amorphous diamond solar cells are lightweight, radiation hard, and will have high survivability in extreme conditions, making it an ideal technology for space applications.