Hole transporting material and solid electrolyte and photovoltaic device using same
Disclosed herein is a material, and a solid electrolyte and a photovoltaic device using the same. When the material is used as a hole transporting layer material of the photovoltaic device, the reduction of an electrolytic layer resulting from leakage or volatilization of an electrolytic solution is prevented, thus the battery characteristics, long-term stability, and reliability of the photovoltaic device are improved.
1. A novel hole transporting material shown in Formula 1:
Formula 1
wherein R 1 to R 28 are the same as or different from each other, and are independently selected from a group consisting of hydrogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 arylalkyl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C5-C30 heteroaryl group, a substituted or unsubstituted C5-C30 heteroarylalkyl group, a substituted or unsubstituted C5-C30 heteroaryloxy group, a substituted or unsubstituted C5-C20 cycloalkyl group, and a substituted or unsubstituted C5-C30 heterocycloalkyl group, and M is C or Si.
2. The novel hole transporting material as set forth in claim 1 , wherein R 1 and R 2 are different from R 3 and R 4 .
3. The novel hole transporting material as set forth in claim 1 , wherein R 1 and R 2 , are the same as R 3 and R 4 .
4. The novel hole transporting material as set forth in claim 1 , wherein the hole transporting material has a structure of Formula 2
5. A solid electrolyte comprising the hole transporting material of claim 1 .
6. The solid electrolyte as set forth in claim 5 , further comprising a second hole transporting material selected from the group consisting of triphenylmethane, carbazole, N,N′-diphenyl′-N,N′-bis(3-methylphenyl)-1,1′biphenyl)-4,4′diamine (TPD), and 2,2′,7,7′-tetrakis-(N,N-di-methoxyphenylamine)-9,9′-spirobifluorene.
7. An electronic device comprising:
a hole transporting layer including the hole transporting material of claim 1 .
8. The electronic device as set forth in claim 7 , wherein the hole transporting layer further comprises a second hole transporting material selected from a group consisting of triphenylmethane, carbazole, N,N′-diphenyl′-N,N′-bis(3-methylphenyl)-1,1′biphenyl)-4,4′diamine (TPD), and 2,2′,7,7′-tetrakis-(N,N-di-methoxyphenylamine)-9,9′-spirobifluorene.
9. The electronic device as set forth in claim 7 , wherein the hole transporting layer is formed using spin coating, dipping, spraying, roll coating, blade coating, gravure coating, screen printing, doctor blading, electrophoresis, or a combination comprising at least one of the foregoing processes.
10. The electronic device as set forth in claim 7 , wherein the electronic device is a photovoltaic device.
11. The electronic device as set forth in claim 10 , wherein the photovoltaic device comprises:
a transparent electrode in which a conductive material is applied on a substrate;
a light absorption layer which is formed on the transparent electrode and has a dye adsorbed on a surface thereof;
a counter electrode facing the transparent electrode; and
a hole transporting layer interposed between the transparent electrode and the counter electrode.
12. The electronic device as set forth in claim 7 , wherein the electronic device is an electroluminescent device.