Polymer material, solar cell using the same, and solar photovoltaic generation system

Patent metadata

Field	Value
Publication number	US-9296848-B2
Application number	US-201213429653-A
Country	US
Kind code	B2
Filing date	Mar 26, 2012
Priority date	Mar 29, 2011
Publication date	Mar 29, 2016
Grant date	Mar 29, 2016

Abstract

According to one embodiment, a polymer material includes two or more different repeating units each containing a quinoxaline backbone. At least one of the repeating units includes a halogen atom.

First claim

What is claimed is:

1. A copolymer including first and second repeating units different from each other, the first repeating unit including a segment represented by formula (A), and the second repeating unit including a segment represented by formula (B), wherein Ar 1 , Ar 2 , Ar 3 , and Ar 4 are identically or differently phenyl or thienyl group in which each H atom may be unsubstituted or substituted by a fluorine atom or a substituent having a fluorine atom, the substituent having a fluorine atom being a linear or branched alkyl group or alkoxy group having 1 to 12 carbon atoms in which one or more of H atoms are substituted by fluorine atoms, and at least one of Ar 1 , Ar 2 , Ar 3 , and Ar 4 is phenyl or thienyl group having one or more H atoms substituted by trifluoromethyl groups;

2. A solar cell comprising:
a positive electrode;
a negative electrode; and
a photoelectric conversion layer which is interposed between the positive electrode and the negative electrode and contains a copolymer, the copolymer including first and second repeating units different from each other, the first repeating unit including a segment represented by formula (A), and the second repeating unit including a segment represented by formula (B), wherein Ar 1 , Ar 2 , Ar 3 , and Ar 4 are identically or differently phenyl or thienyl group in which each H atom may be unsubstituted or substituted by a fluorine atom or a substituent having a fluorine atom, the substituent having a fluorine atom being a linear or branched alkyl group or alkoxy group having 1 to 12 carbon atoms in which one or more of H atoms are substituted by fluorine atoms, and at least one of Ar 1 , Ar 2 , Ar 3 , and Ar 4 is phenyl or thienyl group having one or more H atoms substituted by trifluoromethyl groups:

3. A solar photovoltaic generation system comprising:
a solar cell comprising a positive electrode, a negative electrode, and a photoelectric conversion layer which is interposed between the positive electrode and the negative electrode and contains a copolymer, the copolymer including first and second repeating units different from each other, the first repeating unit including a segment represented by formula (A), and the second repeating unit including a segment represented by formula (B), wherein Ar 1 , Ar 2 , Ar 3 , and Ar 4 are identically or differently phenyl or thienyl group in which each H atom may be unsubstituted or substituted by a fluorine atom or a substituent having a fluorine atom, the substituent having a fluorine atom being a linear or branched alkyl group or alkoxy group having 1 to 12 carbon atoms in which one or more of H atoms are substituted by fluorine atoms, and at least one of Ar 1 , Ar 2 , Ar 3 , and Ar 4 is phenyl or thienyl group having one or more H atoms substituted by trifluoromethyl groups;
an inverter which converts a DC power output from the photovoltaic cell into an AC power; and
a storage cell which stores at least a part of an excessive amount of power when the electric power output from the photovoltaic cell exceeds user's power consumption, and outputs the stored electric power when the electric power output from the photovoltaic cell is below the user's power consumption;

Assignees

• Iwanaga Hiroki
• Aiga Fumihiko
• Hosoya Masahiro
• Saito Mitsunaga
• Oooka Haruhi
• Ono Akihiko
• Toshiba Kk

Inventors

• Iwanaga Hiroki
• Aiga Fumihiko
• Hosoya Masahiro
• Saito Mitsunaga
• Oooka Haruhi
• Ono Akihiko

Classifications

• H10K30/50

  Photovoltaic [PV] devices · CPC title

• H01L51/0046

  Electricity · mapped topic

• H01L51/0039

  Electricity · mapped topic

• C08F228/06 Primary

  by a heterocyclic ring containing sulfur · CPC title

• Y10T307/696

  Cross-Sectional Technologies · mapped topic