Swift Solar Inc.

Alliance for Sustainable Energy, LLC

Leland Stanford Junior University

Oxford University Innovation Limited

Tomas Leijtens

Henry James Snaith

Kevin Alexander Bush

David Todd Moore

Giles Eperon

Joseph Jonathan Berry

Michael David McGehee

Colin David Bailie

Axel Finn Palmstrom

Maximilian Tobias Hoerantner

Rohit Prasanna

Annikki Santala

Todd Krajewski

Jack Alexander-Webber

The present disclosure relates to a device that includes a first layer that includes at least one of a semiconducting material, a hole transport material (HTM), and/or an electron transport material (ETM), a second layer, and a third layer that includes a material that is at least one of transparent or conductive, where the second layer is positioned between the first layer and the third layer, the first layer, the second layer, and the third layer are in electrical contact with each other, and the third layer has a first thickness between greater than zero nm and about 100 nm. In some embodiments of the present disclosure, the semiconducting material may include a perovskite.

Optoelectronic devices and methods of making the same

Solar cell modules and methods of fabrication are described. In an embodiment, a pair of tandem solar cells are a step surface or trench within the top subcell of a tandem solar cell is at least partially filled with another material such as an insulator support or electrically conductive support to transfer stress away from the absorber layer of the top subcell of the tandem solar cells when stacked or connected with ribbon.

Mechanically strong connections for perovskite-silicon tandem solar cells

Vapor phase transport systems and methods of depositing perovskite films are described. In an embodiment, a deposition method includes feeding a perovskite solution or constituent powder to a vaporizer, followed by vaporization and depositing the constituent vapor as a perovskite film. In an embodiment, a deposition system and method includes vaporizing different perovskite precursors in different vaporization zones at different temperatures, followed by mixing the vaporized precursors to form a constituent vapor, and depositing the constituent vapor as a perovskite film.

Vapor phase transport systems for depositing perovskite semiconductors

Solar cell stack-ups are described in which fullerene based transport layers are blended with a metal halide such as LiF, CsF or MgF. In particular, perovskite solar cell stack-ups are described in which an electron transport layer includes a metal halide and fullerene blend.

Composite materials for transport layers in perovskite solar cells

The present disclosure relates to a perovskite that includes ABX, where A is an organic cation, B is a second cation, X is an anion, and the perovskite has a film density (&#x3c1;) of less than 4.37 g/cm. In some embodiments of the present disclosure, the film density may be in the range, 4.1 g/cm&#x2264;&#x3c1;&#x2264;4.37 g/cm. In some embodiments of the present disclosure, the organic cation may include at least one of dimethylammonium (DMA), guanidinium (GA), and/or acetamidinium (Ac). In some embodiments of the present disclosure, A may further include cesium.

Dimethylammonium-containing perovskite devices

A buffer layer for protecting an organic layer during high-energy deposition of an electrically conductive layer is disclosed. Buffer layers in accordance with the present invention are particularly well suited for use in perovskite-based single-junction solar cells and double-junction solar cell structures that include at least one perovskite-based absorbing layer. In some embodiments, the buffer layer comprises a layer of oxide-based nanoparticles that is formed using solution-state processing, in which a solution comprising the nanoparticles and a volatile solvent is spin coated onto a structure that includes the organic layer. The solvent is subsequently removed in a low-temperature process that does not degrade the organic layer.

Solar cell comprising an oxide-nanoparticle buffer layer and method of fabrication

Vapor phase transport system and method for depositing perovskite semiconductors

Growing community of inventors

Redwood City, CA, United States of America

Tomas Leijtens