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

Bush, Kevin Alexander; Bailie, Colin David; McGehee, Michael David; Leijtens, Tomas

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

Patent · 26 October 2021

OSTI ID:1860005

Bush, Kevin Alexander; Bailie, Colin David; McGehee, Michael David; Leijtens, Tomas

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.

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Research Organization:: Stanford Univ., CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: EE0004946

Assignee:: The Board of Trustees of the Leland Stanford Junior University (Stanford, CA)

Patent Number(s):: 11,158,828

Application Number:: 16/711,842

OSTI ID:: 1860005

Country of Publication:: United States

Language:: English

References (16)

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