Title:
HOLE TRANSPORT MATERIAL, PRECURSOR FOR SYNTHESIZING HOLE TRANSPORT MATERIAL, AND METHOD FOR PRODUCING HOLE TRANSPORT MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/249789
Kind Code:
A1
Abstract:
The present invention provides a novel hole transport material which is dopant-free for the purpose of stability improvement and still enables a perovskite solar cell to achieve a sufficient photoelectric conversion efficiency and high durability in the absence of a dopant, said perovskite solar cell using a perovskite crystal of methylammonium lead iodide (NH3CH3PbI3) as a sunlight absorber, while using spiro-OMeTAD as a hole transport material. The present invention also provides a synthesis route through an octabromo-substituted product that is a precursor for efficiently synthesizing this hole transport material.
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Inventors:
INOUE SHINICHI (JP)
TSUCHIYA DAISUKE (JP)
NAKAJIMA HIDEYUKI (JP)
UENO TOSHIYA (JP)
ONOZAWA NOBUKO (JP)
FUNAKI TAKASHI (JP)
MURAKAMI TAKURO (JP)
CHIKAMATSU MASAYUKI (JP)
TSUCHIYA DAISUKE (JP)
NAKAJIMA HIDEYUKI (JP)
UENO TOSHIYA (JP)
ONOZAWA NOBUKO (JP)
FUNAKI TAKASHI (JP)
MURAKAMI TAKURO (JP)
CHIKAMATSU MASAYUKI (JP)
Application Number:
PCT/JP2022/017940
Publication Date:
December 01, 2022
Filing Date:
April 15, 2022
Export Citation:
Assignee:
NIPPON FINE CHEMICAL CO (JP)
International Classes:
H01L51/46; C07C211/61; C07C213/00; C07C217/92; C07D295/135; H01L51/44
Foreign References:
| JP2006237552A | 2006-09-07 | |||
| CN104844464A | 2015-08-19 |
Other References:
HU ZHAO, FU WEIFEI, YAN LIJIA, MIAO JINGSHENG, YU HONGTAO, HE YAOWU, GOTO OSAMU, MENG HONG, CHEN HONGZHENG, HUANG WEI: "Effects of heteroatom substitution in spiro-bifluorene hole transport materials", CHEMICAL SCIENCE, vol. 7, no. 8, 3 May 2016 (2016-05-03), United Kingdom , pages 5007 - 5012, XP093007562, ISSN: 2041-6520, DOI: 10.1039/C6SC00973E
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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