Up and down conversion systems for improved solar cell performance or other energy conversion
A system and a conversion element for power conversion. The power conversion system includes a power conversion device which produces electric power upon illumination and includes a light conversion device which down-converts and up-converts a radiant source of energy into a specific energy spectrum for the illumination of the power conversion device. The conversion element includes a first plurality of particles which upon radiation from a first radiation source radiate at a higher energy than the first radiation source, and includes a second plurality of particles which upon radiation from the first radiation source radiate at a lower energy than the first radiation source. At least one of the first plurality of particles and the second plurality of particles can be at least partially metal coated.
1. A power conversion system for production of electric power, comprising:
a light-to-electric power conversion device which produces the electric power upon illumination, wherein the light-to-electric power conversion device is a silicon photovoltaic cell; and
a light conversion device thereon, wherein the light conversion device comprises an upconverting particle having a dielectric core comprising an optionally doped nanocrystalline perovskite;
wherein the optionally doped nanocrystalline perovskite converts a first part of solar radiation into a wavelength shifted part, and wherein the silicon photovoltaic cell converts at least the wavelength shifted part into electricity.
2. The system of claim 1 , wherein the nanocrystalline perovskite comprises a dopant including at least one of Er, Eu, Y, Yb, Tm, Nd, Tb, Ce, or a combination thereof.
3. The system of claim 2 , wherein the nanocrystalline perovskite is yttrium aluminum perovskite (YAP).