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US 12,336,305 B1Granted
Photovoltaic cells with bypass diodes
AssigneeTandem PV
InventorsColin David Bailie, Chris Eberspacher
Life of this patent
Estimating the term…
Abstract
Embodiments of the disclosure include a photovoltaic device comprising a plurality of photovoltaic cells coupled in series. The photovoltaic cells comprising a first contact layer, 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 a second contact layer disposed over the second CTL. Each photovoltaic cell in the plurality of photovoltaic cells includes a diode region, the diode region comprises a feature that extends through the absorber layer and comprises the first CTL and the second CTL.
Claims20
A photovoltaic device comprising:
- a plurality of photovoltaic cells coupled in series, wherein each of the photovoltaic cells comprise:
- a first contact layer;
- a first charge transport layer (CTL) disposed over the first contact layer;
- an absorber layer disposed over the first CTL;
- a second charge transport layer (CTL) disposed over the absorber layer;
- and
- a second contact layer disposed over the second CTL,
- wherein each photovoltaic cell in the plurality of photovoltaic cells includes a diode region that comprises a feature,
- wherein the feature extends through the absorber layer and comprises a portion of the first CTL and a portion of the second CTL,
- wherein the diode region essentially comprises the first contact layer, the first CTL, the second CTL, and the second contact layer,
- wherein the first CTL and the second CTL are in direct contact with each other within the diode region.
8 more elements
A photovoltaic device comprising:
- a first photovoltaic cell, comprising:
- a first portion of a first contact layer;
- a first portion of a first charge transport layer (CTL) disposed over the first portion of the first contact layer;
- a first portion of an absorber layer disposed over the first portion of the first CTL;
- a first portion of a second charge transport layer (CTL) disposed over the first portion of the absorber layer;
- and
- a first portion of a second contact layer disposed over the first portion of the second CTL;
- a second photovoltaic cell, comprising:
- a second portion of the first contact layer;
- a second portion of the first charge transport layer (CTL) disposed over the second portion of the first contact layer;
- a second portion of the absorber layer disposed over the second portion of the first CTL;
- a second portion of the second charge transport layer (CTL) disposed over the second portion of the absorber layer;
- and
- a second portion of the second contact layer disposed over the second portion of the second CTL;
- a first P1 scribe line disposed between the first and second portions of the first contact layer;
- a first P3 scribe line extending through the first portion of the first CTL, the first portion of the absorber layer, the first portion of the second CTL, and the first portion of the second contact layer;
- and
- one or more first diode regions,
- wherein the one or more first diode regions each comprise a feature that is positioned between the first P3 scribe line and the first P1 scribe line,
- wherein the one or more first diode regions extend through the first portion of the absorber layer,
- wherein the one or more first diode regions comprise the first CTL and the second CTL, and
- wherein the one or more first diode regions each comprise the first contact layer, the first CTL, the second CTL, and the second contact layer,
- wherein the first CTL and the second CTL are in direct contact with each other within the one or more diode regions.
20 more elements
A photovoltaic device comprising:
- a plurality of photovoltaic cells coupled in series, wherein each of the photovoltaic cells comprise:
- a first contact layer;
- a first charge transport layer (CTL) disposed over the first contact layer;
- an absorber layer disposed over the first CTL;
- a second charge transport layer (CTL) disposed over the absorber layer;
- and
- a second contact layer disposed over the second CTL,
- wherein each photovoltaic cell in the plurality of photovoltaic cells includes a diode region that comprises a feature comprising trench, circular or oval shaped structures,
- wherein the feature extends through the absorber layer and comprises a portion of the first CTL and a portion of the second CTL,
- wherein the diode region essentially comprises the first contact layer, the first CTL, the second CTL, and the second contact layer,
- wherein the first CTL and the second CTL are in direct contact with each other within the diode region.
8 more elements
Dependencies are inferred from the claim text.