Organic photosensitive devices with exciton-blocking charge carrier filters

US10069095B2 · kind B2 · utility

Assignees

• University of Southern California · US
• THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

• Stephen R. Forrest · Ann Arbor, US
• Xin Xiao · Houston, US
• Jeramy D. Zimmerman · Golden, US
• Kevin Bergemann · Ann Arbor, US
• Anurag Panda · Ann Arbor, US
• Brian E. Lassiter · San Francisco, US
• Mark E. Thompson · Villa Park, US
• Andrew N. Bartynski · East Palo Alto, US
• Cong Trinh · Santa Clara, US

Key dates

• Filing date: Apr 14, 2014
• Grant date: Sep 4, 2018
• Expiry date: Apr 14, 2034

Classification

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

Abstract

Disclosed herein are organic photosensitive devices including at least one exciton-blocking charge carrier filter. The filters comprise a mixture of at least one wide energy gap material and at least one electron or hole conducting material. As described herein, the novel filters simultaneously block excitons and conduct the desired charge carrier (electrons or holes).