| 摘要 |
An ultra-efficient device for converting light into electricity has a dielectric medium, a metallic medium having an array of surface-plasmon-polariton (SPP) resonator cavities formed at nano-scale and distributed below the dielectric-metal interface, each nano-scale resonator cavity having a hollow metal cathode in which a metal anode is disposed, another metallic medium electrically coupled to the anode, and another dielectric medium insulating the anode from the cathode. The cathode is shaped and spaced from the anode so that standing waves of SPP excitations generated by the input light cause quantum field emission of electrons to be rectified as an electrical output. The SPP resonator cavities may be formed in a plurality of sizes to allow full spectrum energy conversion of light input. High energy conversion efficiencies up to a theoretical maximum of 84% can be obtained. |
