Photoelectric Conversion Research Team
Team Leader
Takuzo AIDA (D.Eng.)
The lasting supply of clean energy for our society is an essential challenge to maintain our life. The predictable exhaustion of fossil energy resources and the increasing pressure generated by environmental concerns and climate changes have triggered an intensification of research on renewable energies. Solar energy is potentially a sustainable energy source and is promising candidates for CO2 emission free during use. To realize low-carbon society, our aim is to create unprecedented design of organic thin-film photovoltaic cells with an efficient photoelectric conversion. We also focus on the development of photoactive layers based on structurally controlled donor and acceptor units at the molecular level, and novel methodology for the unique interfaces between photoactive layers and metal electrodes. We will contribute to the development of green innovation through our missions.
- Development of organic functional semiconductors showing carrier-transporting and photo-harvesting properties
- Development of integrated nano-sized photoactive layers based on donor and acceptor units
- Design of the organic film/metal electrode interfaces with precise carrier-transporting paths
- Akaike, K., Kanai, K., Ouchi, Y., and Seki, K.:
"Impact of Ground-State Charge Transfer and Polarization Energy Change on Energy Band Offsets at Donor/Acceptor Interface in Organic Photovoltaics'"
Adv. Funct. Mater. 20, 715-721 (2010). - Akaike, K., Opitz, A., Wagner, A., Bruetting, W., Kanai, K., Ouchi, Y., and Seki, K.:
"Unoccupied States in Copper Phthalocyanine/Fullerene Blended Films Determined by Inverse Photoemission Spectroscopy"
Org. Electron. 11, 1853-1857 (2010). - Akaike, K., Kanai, K., Ouchi, Y., and Seki, K.:
"Influence of Ionization Energy Change on Valence Band Offsets in Organic p-n Junctions'"
Appl. Phys. Lett. 95, 113306 (2009). - Akaike, K., Kanai, K., Ouchi, Y., and Seki, K.:
"Influence of Side Chain of [6,6]-Phenyl-C61-Butryic Acid Methyl Ester on Interfacial Electronic Structure of [6,6]-Phenyl-C61-Butryic Acid Methyl Ester/Ag Substrate"
Appl. Phys. Lett. 94, 043309 (2009). - Koizumi, Y., Seki, S., Okamoto, K., Saeki, A., and Tagawa, S.:
"Radiation Induced One-Step One-Pod Polymerization of Functional Conjugated Molecules"
J. Photopolym. Sci. Tech. 20, 97-99 (2007). - Koizumi, Y., Seki, S., Saeki, A., and Tagawa, S.:
"Electronic Properties of the Charge Carriers on Oligofluorene Backbone"
Rad. Phys. Chem. 76, 1337-1341 (2007). - Koizumi, Y., Seki, S., Tsukuda, S., Sakamoto, S., and Tagawa, S.:
"Self-Condensed Nanoparticles of Oligofluorenes with Water-Soluble Side Chains"
J. Am. Chem. Soc. 128, 9036-9037 (2006). - Kawamoto, M., Tsukamoto, T., Kinoshita, M., and Ikeda, T.:
"White Emission from Liquid-Crystalline Copolymers Containing Oxadiazole Moieties in the Side Chain"
Appl. Phys. Lett. 89, 121920 (2006). - Kawamoto, M., Mochizuki, H., Ikeda, T., Iino, H., and Hanna, J.:
"Charge Carrier Transport Properties in Polymer Liquid Crystals Containing Oxadiazole and Amine Moieties in the Same Side Chain"
J. Phys. Chem. B 109, 9226-9230 (2005). - Kawamoto, M., Mochizuki, H., Shishido, A., Ikeda, T., Lee, B., and Shirota, Y.:
"Side-Chain Polymer Liquid Crystals Containing Oxadiazole and Amine Moieties with Carrier-Transporting Abilities for Single-Layer Light-Emitting Diodes"
J. Phys. Chem. B 107, 4887-4893 (2003).
Principal Investigator
- Takuzo AIDA
- Team Leader
Staff Scientist
- Masuki KAWAMOTO
- Deputy Laboratory Head
Postdoctoral Fellow
- Yoshiko KOIZUMI
- Postdoctoral Researcher
- Kouki AKAIKE
- Postdoctoral Researcher
- Koichiro MIKAMI
- Postdoctoral Researcher
Technical Assistant
- Mari KOIZUMI
- Technical Staff II