Nanostructure and nanocomposite based compositions and photovoltaic devices

US6878871B2 · kind B2 · utility

Assignee

• NANOSYS, INC. · US

Inventors

• Erik C. Scher · San Francisco, US
• Mihai Buretea · San Francisco, US
• Calvin Y. H. Chow · Portola Valley, US
• Stephen Empedocles · Mountain View, US
• Andreas Meisel · San Francisco, US
• J. Wallace Parce · Palo Alto, US

Key dates

• Filing date: Sep 4, 2003
• Grant date: Apr 12, 2005
• Expiry date: Sep 4, 2023

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that comprise core-shell nanostructures and/or two populations of nanostructures, where the nanostructures are not necessarily part of a nanocomposite, are also features of the invention. Varied architectures for such devices are also provided including flexible and rigid architectures, planar and non-planar architectures and the like, as are systems incorporating such devices, and methods and systems for fabricating such devices. Compositions comprising two populations of nanostructures of different materials are also a feature of the invention.