Polymer wrapped carbon nanotube near-infrared photoactive devices

US8017863B2 · kind B2 · utility

Assignee

• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

• Stephen R. Forrest · Ann Arbor, US
• Michael Scott Arnold · Middleton, US
• Jeramy D. Zimmerman · Golden, US
• Richard R. Lunt · Williamston, US

Key dates

• Filing date: Apr 7, 2009
• Grant date: Sep 13, 2011
• Expiry date: Apr 7, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

A photoactive device includes a photoactive region disposed between and electrically connected to two electrodes where the photoactive region includes a first organic photoactive layer comprising a first donor material and a second organic photoactive layer comprising a first acceptor material. The first donor material contains photoactive polymer-wrapped carbon nanotubes and the photoactive region includes one or more additional organic photoactive material layers disposed between the first donor material layer and the acceptor material layer. The photoactive region creates excitons upon absorption of light in the range of about 400 nm to 1450 nm.