Photoelectric converter and solar cell using the same
AssigneeMitsubishi Chemical Corporation
InventorsYoshiharu Sato, Eiichi Nakamura, Takaaki Niinomi, Yutaka Matsuo, Masahiko Hashiguchi
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Abstract
The present invention provides a photoelectric conversion device having at least a fullerene derivative as an electron acceptor and a compound as an electron donor between a pair of electrodes, wherein the fullerene derivative has 2 to 4 organic groups which each independently have 1 to 50 carbon atoms, and wherein when the fullerene derivative has two organic groups, these organic groups do not bind to each other to form a ring.
Claims17
A photoelectric conversion device having at least a fullerene derivative as an electron acceptor represented by any one of the following formulae (1A) to (1G):
- wherein in the formulae (1A) to (1G):
- R1 and R2 are each independently an organic group having 1 to 50 carbon atoms;
- and R1 and R2 do not bind to each other to form a ring, and a compound as an electron donor between a pair of electrodes, wherein the electron acceptor and electron donor are present in a bulk heterojunction;
- wherein one or more of the organic groups having 1 to 50 carbon atoms are each independently a group represented by the following formula (3):
- wherein in the formula (3):
- W is an atom belonging to group 4B of the periodic table;
- R3, R4 and R5 are each independently an hydrogen atom, a hydrocarbon group having 1 to 50 carbon atoms, alkoxy or amino;
- and n is an integer from 1 to 10.
Dependencies are inferred from the claim text.