Small molecule passivation of quantum dots for increased quantum yield

US11549058B2 · kind B2 · utility

Assignee

• NANOSYS, INC. · US

Inventors

• Ilan Jen-La Plante · San Jose, US
• Yeewah Annie Chow · San Jose, US
• John J. Curley · Tyngsborough, US
• Wenzhou Guo · San Jose, US
• Alexander Tu · San Jose, US
• Chunming Wang · Nanhu, CN

Key dates

• Filing date: Jan 24, 2020
• Grant date: Jan 10, 2023
• Expiry date: Jul 10, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B82Y40/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

This disclosure pertains to the field of nanotechnology. The disclosure provides nanostructure compositions comprising (a) at least one population of nanostructures; (b) at least one metal halide bound to the surface of the nanostructures; and (c) at least one metal carboxylate bound to the surface of the nanostructures. The nanostructure compositions have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are methods of preparing the nanostructure compositions. And, nanostructure films and molded articles comprising the nanostructure compositions are also provided.