Hybrid planar-mixed heterojunction for organic photovoltaics

Patent · Tue Sep 14 04:00:00 EDT 2021

OSTI ID:1840450

Forrest, Stephen R.; Zimmerman, Jeramy D.; Xiao, Xin

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.

• Research Organization: Univ. of Michigan, Ann Arbor, MI (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: SC0000957
• Assignee: The Regents of the University of Michigan (Ann Arbor, MI)
• Patent Number(s): 11,121,336
• Application Number: 14/646,154
• OSTI ID: 1840450
• Country of Publication: United States
• Language: English