Patent · US Active

Hybrid planar-mixed heterojunction for organic photovoltaics

US11121336B2 · kind B2 · utility

3Cited by

0References

9Claims

0Family size

Assignee

THE REGENTS OF THE UNIVERSITY OF MICHIGAN · US

Inventors

Stephen R. Forrest · Ann Arbor, US
Jeramy D. Zimmerman · Golden, US
Xin Xiao · Houston, US

Key dates

Filing date	Nov 22, 2013
Grant date	Sep 14, 2021
Priority date	—
Expiry date	Nov 22, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/549
WIPO fieldMicro-structural and nano-technology
WIPO sectorChemistry

Abstract

Disclosed herein are organic photosensitive optoelectronic devices comprising two electrodes in superposed relation; a mixed photoactive layer located between the two electrodes, wherein the mixed photoactive layer comprises at least one donor material having a HOMO energy and at least one acceptor material having a LUMO energy, wherein the at least one donor material and the at least one acceptor material form a mixed donor-acceptor heterojunction; a photoactive layer adjacent to and interfacing with the mixed photoactive layer, wherein the photoactive layer comprises a material having a LUMO energy within 0.3 eV of the LUMO energy of the at least one acceptor material or a HOMO energy within 0.3 eV of the HOMO energy of the at least one donor material; and a buffer layer adjacent to and interfacing with the mixed photoactive layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.