Hole transporting agents and photoelectric conversion device comprising the same
A photoelectric conversion device comprising a semiconductor and an organic electrically conducting agent, wherein the organic electrically conducting agent exhibits a melting temperature T m which is lower than the operation temperature of the photoelectric conversion device.
1. A photoelectric conversion device comprising a semiconductor and a polymeric electrically conducting agent, wherein:
said polymeric electrically conducting agent has a melting point temperature which is lower than the operation temperature of said photoelectric conversion device,
said polymeric electrically conducting agent has a glass transition temperature T g , and
the polymeric electrically conducting agent is a hole transporting agent.
2. The photoelectric conversion device according to claim 1 , wherein the melting temperature of the polymeric electrically conducting agent is about 140° C. or less.
3. The photoelectric conversion device according to claim 1 , wherein the glass transition temperature Tg is about 60° C. or less.
4. The photoelectric conversion device according to claim 1 , wherein the semiconductor is sensitized with a dye.
5. The photoelectric conversion device according to claim 1 , wherein said polymeric electrically conducting agent comprises at least one organic compound.
6. The photoelectric conversion device according to claim 5 , wherein said polymeric electrically conducting agent comprises a mixture of at least two organic compounds.
7. The photoelectric conversion device according to claim 5 , wherein said polymeric electrically conducting agent further comprises at least one dopant.
8. The photoelectric conversion device according to claim 4 , wherein said dye is a ruthenium complex.
9. The photoelectric conversion device according to claim 1 , wherein said semiconductor is porous.
10. The photoelectric conversion device according to claim 9 , wherein said semiconductor comprises nanoparticles.
11. A solar cell comprising a photoelectric conversion device according to claim 1 .
12. The photoelectric conversion device according to claim 10 , wherein said nanoparticles are TiO 2 .