Heterojunctions in halide perovskite nanostructures

US10858581B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Letian Dou · West Lafayette, US
• Minliang Lai · Corona, US
• Yiming Yang · Taichung, TW
• Peidong Yang · Somerville, US

Key dates

• Filing date: Oct 9, 2017
• Grant date: Dec 8, 2020
• Expiry date: Oct 6, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C30B29/12
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

This disclosure provides systems, methods, and apparatus related to heterojunctions in halide perovskite nanostructures. In one aspect, a nanostructure comprises a first region and a second region. The first region comprises ABX3, with A being selected from a group consisting of Cs and Rb, with B being selected from a group consisting of Sn and Pb, and with X being selected from a group consisting of Br, Cl, and Br and Cl. The second region comprises ABY3, with Y being selected from a group consisting of Br, I, and Br and I. Compositions of the first region of the nanostructure and the second region of the nanostructure are different.