3月15日13時に第15期公募情報を公開いたしました。
4月1日13時より応募者登録サイトへの登録が可能です。
Information on the 15th call for applications was opened at 13:00 on 15 March.
Applicants can register on the registration website from 1 April at 13:00.
The following 15 researchers are working at the Hakubi Center for Advanced Research, Kyoto University.
:Global Type
:Tenure-track Type
Research Interests: Quantum photophysics, Nanoscience
Research Topic: Optoelectronic energy recycling and quantum cooperative effects in semiconductor nanostructures
Host Department: Institute for Chemical Research
Previous Affiliation: Institute for Chemical Research, Kyoto University
Efficient use of light and electricity is an essential step towards a sustainable society. Optoelectronic devices such as photodetectors and solar cells are useful devices to obtain electric signals and energies from light. However, these light-to-current conversion processes cause thermal and radiative energy losses, which are serious problems of energy waste. Here, I study optoelectronic energy recycling in semiconductor nanostructures.
The strategy to realize optoelectronic energy recycling is to utilize a quantum cooperative effect in nanomaterials. In my recent studies, I have revealed ultrafast generation processes of electrons and holes in nanomaterials. In semiconductor nanomaterials with their sizes of several nanometers, photogenerated electrons and holes are strongly affected by the quantum confinement. Quantum-confined electrons and holes form unique quantum states called multiexcitons, which are hardly generated in bulk semiconductors. Since a multiexciton involves multiple electrons and holes, multiexcitons have a great potential to enhance electric signals in optoelectronic energy conversion. In order to boost photon-to-current conversion efficiencies via multiexcitons, my research focuses on electronic coupling between semiconductor nanostructures. I will establish a new energy recycling system in coupled nanostructures, where thermal and radiative energies are collected and recycled for optoelectronic energy conversion processes.
Research activity status (external page)