US 12,426,503 B2
Material for photoelectric conversion element for imaging
Atsushi Kawada, Tokyo (JP); Munetomo Inoue, Tokyo (JP); and Kentaro Hayashi, Tokyo (JP)
Assigned to NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., Tokyo (JP)
Appl. No. 18/031,956
Filed by NIPPON STEEL Chemical & Material Co., Ltd., Tokyo (JP)
PCT Filed Nov. 25, 2021, PCT No. PCT/JP2021/043224
§ 371(c)(1), (2) Date Apr. 14, 2023,
PCT Pub. No. WO2022/114067, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 2020-196818 (JP), filed on Nov. 27, 2020.
Prior Publication US 2023/0389419 A1, Nov. 30, 2023
Int. Cl. H10K 85/60 (2023.01); C07D 487/04 (2006.01); H10K 30/85 (2023.01); H10K 30/86 (2023.01)
CPC H10K 85/6572 (2023.02) [C07D 487/04 (2013.01); H10K 85/654 (2023.02); H10K 30/85 (2023.02); H10K 30/86 (2023.02)] 13 Claims
OG exemplary drawing
 
1. A material for a photoelectric conversion element for imaging, the material being a compound having a structure of the following general formula (1):

OG Complex Work Unit Chemistry
wherein L each independently represents a single bond, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 4 to 30 carbon atoms and containing a five-membered heterocyclic structure, or a substituted or unsubstituted linked aromatic group in which two to six of any one or more of the aromatic hydrocarbon group or the aromatic heterocyclic group are linked;
“a” represents the number of substitutions, and represents an integer of 1 to 6;
Ar1 each independently represents a group represented by the following formula (2); and
Ar2 each independently represents a substituted or unsubstituted aromatic heterocyclic group having 3 to 30 carbon atoms and containing a nitrogen-containing six-membered cyclic structure, or a substituted or unsubstituted linked aromatic group which contains at least one of the aromatic heterocyclic group and in which two to seven of any one or more of the aromatic heterocyclic group or an aromatic hydrocarbon group having 6 to 30 carbon atoms are linked, provided that a group bonded to L is the aromatic heterocyclic group,

OG Complex Work Unit Chemistry
wherein ring B represents a heterocyclic ring represented by the formula (2a) and fused with an adjacent ring at any position; “*” in the formula (2) represents a bonding position to L in the formula (1); and X represents O, S, or N—Ar3;
Ar3 each independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 4 to 30 carbon atoms and containing a five-membered heterocyclic structure, a substituted or unsubstituted linked aromatic group in which two to six of any one or more of the aromatic hydrocarbon group or the aromatic heterocyclic group are linked, or L-Ar2;
R1, R2, and R3 represent a substituent, and each independently represent an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, a substituted or unsubstituted aromatic heterocyclic group having 4 to 30 carbon atoms and containing a five-membered heterocyclic structure, or a substituted or unsubstituted linked aromatic group in which two to six of any one or more of the aromatic hydrocarbon group or the aromatic heterocyclic group are linked; and R1, R2, and R3 are optionally bonded to any adjacent substituent to form a ring or form a fused ring with an adjacent ring; and
“c” represents an integer of 0 to 4, “d” represents an integer of 0 to 2, and “e” represents an integer of 0 to 4.