title: Progress and Perspectives of Plasmon-Enhanced Solar Energy Conversion.
abstract: Plasmonics allows extraordinary control of light, making it attractive for application in solar energy harvesting. In metal-semiconductor heterojunctions, plasmons can enhance photoconversion in the semiconductor via three mechanisms, including light trapping, hot electron/hole transfer, and plasmon-induced resonance energy transfer (PIRET). To understand the plasmonic enhancement, the metal's geometry, constituent metal, and interface must be viewed in terms of the effects on the plasmon's dephasing and decay route. To simplify design of plasmonic metal-semiconductor heterojunctions for high-efficiency solar energy conversion, the parameters controlling the plasmonic enhancement can be distilled to the dephasing time. The plasmonic geometry can then be further refined to optimize hot carrier transfer, PIRET, or light trapping.
authors.affiliation: Department of Physics and Astronomy, West Virginia University , Morgantown, West Virginia 26506-6315, United States.|Department of Mechanical and Aerospace Engineering, West Virginia University , Morgantown, West Virginia 26506-6106, United States.
authors.forename: Scott K
authors.initials: SK
authors.lastname: Cushing
authors.affiliation: Department of Mechanical and Aerospace Engineering, West Virginia University , Morgantown, West Virginia 26506-6106, United States.
authors.forename: Nianqiang
authors.initials: N
authors.lastname: Wu