Electronic and phononic properties of new nanocarbon allotropes: Effect of superlattice structure and random structure

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K17435
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nanostructural physics
• Research Institution: Gifu University (2016-2017); Yokohama National University (2015)
• Principal Investigator: ONO Shota 岐阜大学, 工学部, 助教 (40646907)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: フラーレン / フォノン / 超高速現象 / 励起子 / 太陽電池

Outline of Final Research Achievements

Peanut-shaped fullerene (C60) polymers, a new type of nanocarbons, have been created by electron beam irradiation to C60 crystals. They can be formed through the generalized Stone-Wales transformation between adjacent C60 molecules. A wide variety of intriguing phenomena
including the anomalous low-temperature resistivity and the photoexcited carrier relaxation
have been observed, while a unified interpretation has not been settled. In the present study, the electronic, phononic, and optical properties of solids as well as C60 polymers have been investigated theoretically. A fundamental understanding of them has been obtained. Ultrafast relaxation dynamics of electron and phonon in solids has been investigated as well.

Free Research Field

物性理論