Photovoltaic cell assembly with ultraviolet filtering
AssigneeTandem PV
InventorsColin David Bailie, Chris Eberspacher, Thomas Michael Brenner
Life of this patent
Estimating the term…
Abstract
A photovoltaic device includes a plurality of photovoltaic cells coupled in series, the photovoltaic cells including a first contact layer disposed over a first substrate, a first charge transport layer (CTL) disposed over the first contact layer, an absorber layer disposed over the first CTL, a second CTL disposed over the absorber layer, and an ultraviolet (UV) blocking layer comprising a first layer formed on a first side of the first substrate and a second layer formed over the first layer, wherein a refractive index (RI) between the first layer and the first substrate is less than or equal to 1.3, and an RI between the second layer and the first layer is from about 0.75 and about 1.5.
Claims14
A photovoltaic device comprising:
- a plurality of photovoltaic cells coupled in series, the photovoltaic cells comprising:
- a first contact layer disposed over a first substrate;
- a first charge transport layer (CTL) disposed over the first contact layer;
- an absorber layer disposed over the first CTL;
- a second CTL disposed over the absorber layer;
- and
- an ultraviolet (UV) blocking layer disposed between the first substrate and the first contact layer, wherein
- the UV blocking layer comprises a first layer formed on a first side of the first substrate and a second layer formed over the first layer,
- a first refractive index difference between the first layer and the first substrate is less than or equal to 1.3, and
- a second refractive index difference between the second layer and the first layer is from about 0.75 and about 1.5.
A photovoltaic device comprising:
- a plurality of photovoltaic cells coupled in series, the photovoltaic cells comprising:
- a first contact layer disposed over a first substrate;
- a first charge transport layer (CTL) disposed over the first contact layer;
- an absorber layer disposed over the first CTL, wherein the absorber layer comprises a perovskite material that has a stoichiometry of ABX3, where A is a first cation, B is a second cation, and X comprises at least one halide;
- a second CTL disposed over the absorber layer;
- and
- a first ultraviolet (UV) blocking layer disposed between the first substrate and the first contact layer, wherein the first ultraviolet (UV) blocking layer comprises a first layer formed on a first side of the first substrate and a second layer formed over the first layer.
Dependencies are inferred from the claim text.