Ambient time-resolved x-ray spectroscopy to directly prove quantum effects on biological reactions

2019 Fiscal Year Final Research Report

• Project/Area Number: 18K19011
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 29:Applied condensed matter physics and related fields
• Research Institution: Tohoku University
• Principal Investigator: Fukidome Hirokazu 東北大学, 電気通信研究所, 准教授 (10342841)
• Co-Investigator(Kenkyū-buntansha): 松田 巌 東京大学, 物性研究所, 准教授 (00343103)
• Project Period (FY): 2018-06-29 – 2020-03-31
• Keywords: グラフェン / 軟X線分光 / 時間分解

Outline of Final Research Achievements

For the purpose of exploiting new field of molecular biology based on quantum theory, it is necessary to devlelop an ultrathin window material, graphene, for time-resolved soft x-ray spectroscopy under ambient pressure. During the research, we fortunately exploited a research deployment on carrier dynamics, such as an observation that photoexcited carrier density is modulated, depending on the layer of graphene.

Free Research Field

表面科学およびTHzデバイス工学

Academic Significance and Societal Importance of the Research Achievements

本研究では、僅かにグラフェンの積層が摂動を受けただけで、層毎にグラフェン中の光励起キャリアの密度が大きく変調されるという初めての研究成果が得られた。このことは、グラフェンの窓材としての量子生物学への応用だけでなく、光デバイス応用においても重要な研究成果になると考えられる。