Color selective photodetector and methods of making

US8399939B2 · kind B2 · utility

Assignee

• Massachusetts Institute of Technology · US

Inventors

• Brian J. Walker · Duvall, US
• August Dorn · Cambridge, US
• Vladimir Bulovic · Lexington, US
• Moungi G. Bawendi · Cambridge, US

Key dates

• Filing date: Dec 3, 2010
• Grant date: Mar 19, 2013
• Expiry date: Feb 22, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549

Abstract

A photoelectric device, such as a photodetector, can include a semiconductor nanowire electrostatically associated with a J-aggregate. The J-aggregate can facilitate absorption of a desired wavelength of light, and the semiconductor nanowire can facilitate charge transport. The color of light detected by the device can be chosen by selecting a J-aggregate with a corresponding peak absorption wavelength.