Optoelectronic component
AssigneeHeliatek GmbH
InventorsKarsten Walzer, Martin Pfeiffer, Andre Weiss, Christian Uhrich, Marieta Levichkova, Gunter Mattersteig
Life of this patent
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Abstract
An optoelectronic component includes a photoactive layer which is arranged between an electrode and a counter electrode. In addition to a donor-acceptor system, the photoactive layer includes a third material which influences the crystallization of the donor-acceptor system. The third material selected from a group consisting of crown ethers, triphenyls, sorbitols, quinacridones and bis(4-(tert-butyl)benzoato-O) hydroxyaluminium. Crown ethers are especially preferred.
Claims18
An optoelectronic component comprising at least one transport layer and at least one photoactive layer disposed between an electrode and a counterelectrode, wherein the at least one photoactive layer is a mixed layer consisting of at least one donor material, at least one acceptor material, and at least one crown ether, wherein:
- i) a donor of the at least one donor material comprises an oligomer;
- ii) an acceptor of the at least one acceptor material comprises a fullerene and/or fullerene derivative;
- iii) the at least one crown ether is selected from formulas Ia and Ib:
- wherein:
- a) m and n are each independently 3, 4, 5, or 6 for the at least one crown ether of formula Ia;
- b) m and n are each independently 1, 2, 3, 4, 5, or 6 for the at least one crown ether of formula Ib;
- c) Ar is phenyl, biphenyl, triphenyl, naphthyl, binaphthyl, 3-6 fused phenyl rings, anthracenyl, phenanthrenyl, or pyrenyl;
- d) Hetar is thiophene, pyrrole, furan, oxazole, thiazole, oxadiazole, thiadiazole, triazole, pyridine, pyrimidine, pyrazine, benzothiophenes, benzopyrrole, benzofuran, benzothiophene, benzo-pyrrole, benzofuran, benzoxazole, benzothiazole, thienothiophenes, thienopyrrole, thienofuran, 3-6 fused heterocycles, dithienothiophene, dithienopyrrole, dithienobenzene, dithienocyclopentadienes, or dipyrrolobenzene;
- e) ether bridges joined in any position selected from a group consisting of 1,2, 1,3 and 1,4 positions on any ring selected from a group consisting of phenyl ring, naphthyl ring, fused phenyl ring, heteroaryl ring, and fused heteroaryl ring;
- and
- f) o and p are each independently 0, 1, 2, 3, 4, 5, 6;
- wherein the photoactive layer optionally comprises at least one triphenyl, sorbitol, quinacridone, and/or bis(4-(tert-butyl)benzoato-O)hydroxyaluminum;
- and
- the at least one donor material and the at least one acceptor material form a donor-acceptor system.
An optoelectronic component comprising at least one transport layer and at least one photoactive layer disposed between an electrode and a counterelectrode, wherein the photoactive layer is a mixed layer comprising at least one donor material, at least one acceptor material, and at least one crown ether, wherein:
- i) the at least one donor material is a donor comprising an oligomer;
- ii) the at least one acceptor material is an acceptor comprising a fullerene and/or fullerene derivative;
- and
- iii) the at least one crown ether is selected from:
- wherein:
- n and m are each independently selected from 4 and 5, and
- R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 and R12 are each independently selected from H, CH3, C2H5, C3H7, C4H9, C5H11, C6H13, isobutyl, CF3, C2F5, C3F7, C4F9, C5F11, C6F13, OH, O—CH3, CH2—O—CH3, CH2—O—CH2—CH3, CN, phenyl, thiophene.
Dependencies are inferred from the claim text.