Two-step excitation phenomenon observed by VPS method in inter-band solar cells

2016 Fiscal Year Final Research Report

• Project/Area Number: 16K14230
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Electronic materials/Electric materials
• Research Institution: Nagoya University
• Principal Investigator: Ujihara Toru 名古屋大学, 未来材料・システム研究所, 教授 (60312641)
• Project Period (FY): 2016-04-01 – 2017-03-31
• Keywords: 半導体物性 / バンド構造 / 光電子分光

Outline of Final Research Achievements

We tried to evaluate the two-step excitation phenomenon using two lights of different wavelengths in inter-band solar cells by using visible-light photo-electron spectroscopy developed by our group. In this method, the energy distribution of electron in conduction band can be evaluated. Firstly, we developed the system for two
light irradiation. Using this system, the spectra of visible-light photo-electron spectroscopy were acquired. The intensity of two light excitation was stronger than that of single light excitation.

Free Research Field

結晶工学