Development of two-dimensional silicon nanosheets having electron conductivity

2015 Fiscal Year Final Research Report

• Project/Area Number: 25871250
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Functional solid state chemistry; Inorganic chemistry
• Research Institution: Toyota Central R&D Lab., Inc.
• Principal Investigator: Ohashi Masataka 株式会社豊田中央研究所, 戦略先端研究領域 機能性Si低次元材料プログラム, 研究員 (10418436)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ナノシート / シリコン / 導電性 / リチウム化 / 高分子 / 複合化 / 自立膜

Outline of Final Research Achievements

In this study, we focused on the preparation of silicon nanosheets (Si-NSs) having electrical conductivity and a self-standing thin film of Si-NSs. As a result, we revealed that the electrical conductivity of Si-NSs was controlled by the lithiation of Si-NSs which proceed by a mechanochemical solid phase reaction of Si-NSs and metallic lithium. In addition, we succeeded to prepare Si-NSs/polystyrene composite (Si-NSs/PS) by the reaction of Si-NSs with styrene. Si-NSs/PS dissolved in organic solvents and formed a self-standing thin film by drying of the Si-NSs/PS slurry on the flat plate.

Free Research Field

ナノ材料