Surface doping of nanostructures

US10249808B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Ayaskanta Sahu · Berkeley, US
• Boris Russ · Berkeley, US
• Jeffrey J. Urban · Emeryville, US
• Nelson E. Coates · Oakland, US
• Rachel A. Segalman · Pleasanton, US
• Jason D. Forster · Berkeley, US
• Miao Liu · Richmond, US
• Fan Yang · Fujian, CN
• Kristin Aslaug Persson · Orinda, US
• Christopher Dames · San Fernando, US

Key dates

• Filing date: Sep 1, 2016
• Grant date: Apr 2, 2019
• Expiry date: Sep 1, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D62/8603
• WIPO field: Semiconductors
• WIPO sector: Electrical engineering

Abstract

This disclosure provides systems, methods, and apparatus related to surface doping of nanostructures. In one aspect a plurality of nanostructures is fabricated with a solution-based process using a solvent. The plurality of nanostructures comprises a semiconductor. Each of the plurality of nanostructures has a surface with capping species attached to the surface. The plurality of nanostructures is mixed in the solvent with a dopant compound that includes doping species. During the mixing the capping species on the surfaces of the plurality of nanostructures are replaced by the doping species. Charge carriers are transferred between the doping species and the plurality of nanostructures.