Plasmon-Induced Hot Carriers Transport in Metallic Ballistic Junctions

摘要

The recent surge of theoretical research and experimental effort to devise plasmon-induced hot-carrier devices for radiation harvesting relies on the capability to separate charges. at metal semiconductor interfaces; however, the demand for momentum conservation of hot carriers at these interfaces sets, an inherent limit to the quantum yield of such devices, making them currently less efficient than commonly used solar cells. Here we report experiments that suggest that ballistic-whole-metal plasmon-induced hot carriers junctions based on atomic contacts could potentially be as efficient as semiconductor-based photovoltaic devices.