Study on low irradiation inverse photoemission spectroscopy for organic device development

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K13414
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Quantum beam science
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Ogawa Hiroshi 国立研究開発法人産業技術総合研究所, 分析計測標準研究部門, 主任研究員 (60356699)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 逆光電子分光 / 低速電子ビーム

Outline of Final Research Achievements

Inverse photoemission spectroscopy (IPES) is a technique used to study precisely information of unoccupied electronic structure, which is an important factor in the operation of organic devices. However, since IPES has a very low sensitivity, it is necessary to irradiate a large amount of electron beam to the measurement sample, which is a major problem in measurement. In order to solve this problem, we have novelly designed an optical system which can improve the light collection efficiency of photons emitted in the inverse photoemission process and an electron optical system for electron beam irradiation. As a result, we have been able to construct an IPES measurement system that can achieve higher sensitivity than before.

Free Research Field

ビーム物理