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United States Patent 5,331,183
Sariciftci, et. al.Jul. 19, 1994

Conjugated polymer - acceptor heterojunctions; diodes, photodiodes, and photovoltaic cells

Inventors: Sariciftci; N. S. (Santa Barbara, CA); Heeger; Alan J. (Santa Barbara, CA).
Assignee: The Regents of the University of California (Oakland, CA).
Appl. No.: 930,161
Filed: Aug. 17, 1992

Intl. Cl.:H01L 29/28;
U.S. Cl.:257/40.; 257/184.;
Field of Search:40;184;461

References Cited

U.S. Patent Documents
5,171,373Dec., 1992Hebard et al. 257/ 40

Other References

Primary Examiner: Crane; Sara W.


This invention relates generally to the fabrication of heterojunction diodes from semiconducting (conjugated) polymers and acceptors such as, for example, fullerenes, particularly Buckminsterfullerenes, C(60), and more particularly to the use of such heterojunction structures as photodiodes and as photovoltaic cells.

15 Claims, 16 Drawing Figures

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