Title:
CONDUCTIVE MATERIAL, CONDUCTIVE FILM USING THE SAME, AND SOLAR CELL
Document Type and Number:
Japanese Patent JP2021140999
Kind Code:
A
Abstract:
To provide a conductive material capable of achieving high conductivity, long-term stability in atmospheric environment, high temperature stability (heat resistance) and high humidity stability, a conductive film using the same, and a solar cell.SOLUTION: A conductive material 6 including the mixture of carbon nanotubes (CNTs) and polystyrene sulfonate (PSS acid) can thinly adsorb PSS on the surfaces of the CNTs while utilizing a structurally stable CNT network structure and the characteristics of chemically stable PSS. The PSS is not a compound such as salt or ester but is acid, the element ratio (S/C ratio) of sulfur (S) to carbon (C) in the mixture can be 0.001 or more and 0.1 or less by atomic ratio, and the total content of the CNTs and the PSS acid in the mixture can be 10wt% or more. A conductive film 7 formed of the conductive material 6 can have a CNT area load capacity of 1 mg/m2 or more and 10000 mg/m2 or less. A solar cell can include the conductive film 7 on the surface of a semiconductor.SELECTED DRAWING: Figure 5
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Inventors:
NODA SUGURU
XIE RONGBIN
XIE RONGBIN
Application Number:
JP2020039321A
Publication Date:
September 16, 2021
Filing Date:
March 06, 2020
Export Citation:
Assignee:
UNIV WASEDA
International Classes:
H01B1/24; C01B32/172; C08K3/04; C08L25/18; H01B5/14
Attorney, Agent or Firm:
Ushiki International Patent Office