Quantum dots with multiple insulator coatings

US9831397B2 · kind B2 · utility

Assignee

• Pacific Light Technologies Corp. · US

Inventors

• Brian Theobald · Beaverton, US
• Matthew Bertram · Medina, US
• Weiwen Zhao · Happy Valley, US
• Juanita N. Kurtin · Hillsboro, US
• Norbert Puetz · Niederaußem, DE

Key dates

• Filing date: Mar 8, 2016
• Grant date: Nov 28, 2017
• Expiry date: Mar 8, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/95
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

Fabricating a semiconductor structure including forming a nanocrystalline core from a first semiconductor material, forming a nanocrystalline shell from a second, different, semiconductor material that at least partially surrounds the nanocrystalline core, wherein the nanocrystalline core and the nanocrystalline shell form a quantum dot. Fabrication further involves forming an insulator layer encapsulating the quantum dot to create a coated quantum dot, and forming an additional insulator layer on the coated quantum dot using an Atomic Layer Deposition (ALD) process.