University of California

Huanping Zhou

Yang Yang

Qi Chen

Bao Lei

Choong-Heui Chung

Brion P Bob

According to some embodiments of the present invention, a method of producing an organic-inorganic perovskite thin film includes depositing a layer of inorganic material on a substrate to form an inorganic film, and performing an organic vapor treatment of the inorganic film to produce an organic-inorganic perovskite thin film. The layer of inorganic material comprises an inorganic anion layer having a metal-ligand framework, and the organic vapor treatment provides organic cations capable of becoming inserted into the metal-ligand framework of the inorganic anion layer to form a perovskite structure.

Sequential processing with vapor treatment of thin films of organic-inorganic perovskite materials

A metal-chalcogenide photovoltaic device includes a first electrode, a window layer spaced apart from the first electrode, and a photon-absorption layer between the first electrode and the window layer. The photon-absorption layer includes a metal-chalcogenide semiconductor. The window layer includes a layer of metal-oxide nanoparticles, and at least a portion of the window layer provides a second electrode that is substantially transparent to light within a range of operating wavelengths of the metal-chalcogenide photovoltaic device. A method of producing a metal-chalcogenide photovoltaic device includes providing a photovoltaic substructure, providing a solution of metal-oxide nanoparticles, and forming a window layer on the substructure using the solution of metal-oxide nanoparticles such that the window layer includes a layer of metal-oxide nanoparticles formed by a solution process.

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Los Angeles, CA, United States of America

Huanping Zhou