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US 8,008,421 B2Granted
Photovoltaic cell with silole-containing polymer
AssigneeKonarka Technologies, Inc.
InventorsRussell Gaudiana, Richard Kingsborough, Xiaobo Shi, David Waller, Zhengguo Zhu
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Abstract
Photovoltaic cells with silole-containing polymers, as well as related systems, methods and components are disclosed.
Claims18
An article, comprising:
- a first electrode;
- a second electrode;
- and
- a photoactive material disposed between the first and second electrodes, the photoactive material comprising a polymer including a first comonomer repeat unit and a second comonomer repeat unit different from the first comonomer repeat unit;
- wherein
- the first comonomer repeat unit comprises a silacyclopentadithiophene moiety of formula (1)
- in which each of R1, R2, R3, and R4, independently, is H, C1-C20 alkyl, C1-C20 alkoxy, C3-C20 cycloalkyl, C1-C20 heterocycloalkyl, aryl, heteroaryl, halo, CN, OR, C(O)R, C(O)OR, or SO2R;
- R being H, C1-C20 alkyl, C1-C20 alkoxy, aryl, heteroaryl, C3-C20 cycloalkyl, or C1-C20 heterocycloalkyl;
- the second comonomer repeat unit comprises a silacyclopentadithiophene moiety of formula (1), a benzothiadiazole moiety, a thiadiazoloquinoxaline moiety, a cyclopentadithiophene moiety, a cyclopentadithiophene oxide moiety, a benzoisothiazole moiety, a benzothiazole moiety, a thiophene oxide moiety, a thienothiophene moiety, a thienothiophene oxide moiety, a dithienothiophene moiety, a dithienothiophene oxide moiety, a tetrahydroisoindole moiety, a fluorene moiety, a fluorenone moiety, a thiazole moiety, a selenophene moiety, a silole moiety, a thiazolothiazole moiety, a cyclopentadithiazole moiety, a naphthothiadiazole moiety, a thienopyrazine moiety, an oxazole moiety, an imidazole moiety, a pyrimidine moiety, a benzoxazole moiety, or a benzimidazole moiety;
- and
- the article is configured as a photovoltaic cell.
8 more elements
A polymer, comprising:
- a first comonomer repeat unit comprising a silacyclopentadithiophene moiety of formula (1)
- in which each of R1, R2, R3, and R4, independently, is H, C1-C20 alkyl, C1-C20 alkoxy, C3-C20 cycloalkyl, C1-C20 heterocycloalkyl, aryl, heteroaryl, halo, CN, OR, C(O)R, C(O)OR, or SO2R;
- R being H, C1-C20 alkyl, C1-C20 alkoxy, aryl, heteroaryl, C3-C20 cycloalkyl, or C1-C20 heterocycloalkyl;
- and
- a second comonomer repeat unit different from the first comonomer repeat unit, the second comonomer repeat unit comprising a silacyclopentadithiophene moiety of formula (1), a benzothiadiazole moiety, a thiadiazoloquinoxaline moiety, a cyclopentadithiophene moiety, a cyclopentadithiophene oxide moiety, a benzoisothiazole moiety, a benzothiazole moiety, a thiophene oxide moiety, a thienothiophene moiety, a thienothiophene oxide moiety, a dithienothiophene moiety, a dithienothiophene oxide moiety, a tetrahydroisoindole moiety,a fluorenone moiety, a thiazole moiety, a selenophene moiety, a silole moiety, a thiazolothiazole moiety, a cyclopentadithiazole moiety, a naphthothiadiazole moiety, a thienopyrazine moiety, an oxazole moiety, an imidazole moiety, a pyrimidine moiety, a benzoxazole moiety, or a benzimidazole moiety.
2 more elements
Dependencies are inferred from the claim text.