Title:
INK COMPOSITION AND PHOTOELECTRIC CONVERSION DEVICE USING SAID INK COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/139992
Kind Code:
A1
Abstract:
The present invention addresses the problem of improving the characteristics of a photoelectric conversion device. The present invention pertains to an ink composition containing: a semiconductor material including at least one p-type semiconductor material and at least one n-type semiconductor material; and two or more solvents including a first solvent and a second solvent having a boiling point higher than that of the first solvent, wherein one among the p-type semiconductor material and the n-type semiconductor material is a non-fullerene compound represented by formula (I), and the polar term P(B1)(MPa0.5) of the Hansen solubility parameter of a B1-containing compound in which the terminal formed by cleaving the bond between A1 and B1 in the non-fullerene compound represented by formula (I) is terminated with a hydrogen atom, and the polar term P(S2)(MPa0.5) of the Hansen solubility parameter of the second solvent satisfy the condition represented by expression (III). (I): A1-B1-(A1)n, (III): |P(B1)-P(S2)|>3.2(MPa0.5) (In formula (I), A1, B1, and n are as defined in the specification, and a compound in which the terminal of A1 is terminated with a hydrogen atom and a compound in which the terminal of B1 is terminated with a hydrogen atom satisfy the condition represented by expression (II). Expression (II): EHOMO(B1)-EHOMO(A1)>2.0(eV) (In expression (II), EHOMO(B1) and EHOMO(A1) are as defined in the specification.))
Inventors:
SAKAKIBARA KEN (JP)
ISHITOBI MASAMITSU (JP)
HIRAOKA RYOICHI (JP)
ISHITOBI MASAMITSU (JP)
HIRAOKA RYOICHI (JP)
Application Number:
PCT/JP2022/046427
Publication Date:
July 27, 2023
Filing Date:
December 16, 2022
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
H10K30/60; C07D495/04; C07D519/00; C08G61/12; H10K30/30; H10K85/60
Domestic Patent References:
| WO2022014482A1 | 2022-01-20 | |||
| WO2016076213A1 | 2016-05-19 | |||
| WO2022019300A1 | 2022-01-27 |
Foreign References:
| JP2021057573A | 2021-04-08 | |||
| JP2012500500A | 2012-01-05 |
Other References:
BIN KAN; JIANGBIN ZHANG; FENG LIU; XIANGJIAN WAN; CHENXI LI; XIN KE; YUNCHUANG WANG; HUANRAN FENG; YAMIN ZHANG; GUANKUI LONG; RICH: "Fine‐Tuning the Energy Levels of a Nonfullerene Small‐Molecule Acceptor to Achieve a High Short‐Circuit Current and a Power Conversion Efficiency over 12% in Organic Solar Cells", ADVANCED MATERIALS, VCH PUBLISHERS, DE, vol. 30, no. 3, 4 December 2017 (2017-12-04), DE , pages n/a - n/a, XP071872480, ISSN: 0935-9648, DOI: 10.1002/adma.201704904
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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