九州大学 エネルギー基盤技術国際教育研究センター

Renewable Energy Development Division – Yoshihiro KANGAWA –

High-Density Utilization of Renewable Energy Technology

Professor

Yoshihiro KANGAWA

Specialization

Semiconductor Physics, Surface Science

Affiliation

Research Institute for Applied Mechanics

Research Topics

  • Development of super-high-efficiency multi-junction solar cells
  • Bulk growth of wide band gap materials for power devices
  • Ab initio-based approach to structural stability of compound semiconductor surfaces

Research Outline

We are studying the growth dynamics and mechanisms of semiconductors such as III-nitrides and III-V-N materials. We investigate how these semiconductors for super-high-efficiency solar cells and power devices grow through experimental and theoretical approach. We focus on both the macroscopic phenomena using experiments and the microscopic phenomena using atomic-scale simulations during semiconductor growth processes.

Schematic of the super-high-efficiency multi-junction solar cells and the module.

Schematic of the super-high-efficiency multi-junction solar cells and the module.

Schematic of the super-high-efficiency multi-junction solar cells and the module.

TEM bright field image of AlN grown by newly developed solid source solution growth (3SG) method and selected area electron beam diffraction patterns.

Logo of our lab

Phase diagram of the growth form obtained by ab initio-based approach and schematic of the growth mode.