Structural analysis of nanomaterials using pair distribution functions: effect of morphology and defects

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K04614
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Nanomaterials chemistry
• Research Institution: National Institute for Materials Science
• Principal Investigator: Tominaka Satoshi 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 主任研究員 (90468869)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 構造解析 / 二体分布関数 / ナノ材料

Outline of Final Research Achievements

Regarding nanomaterials, effects of morphology and defects were investigated through the detailed structural analysis using pair distribution functions (PDFs). For the detailed structural analysis, diffractometry is the most commonly used technique but it can not be used for nanomaterials due to peak broadening based on limited size of crystallites. PDFs can be used for the analysis of crystals as well as nanocrystalline/amorphous materials.
In this research, first, feasibility and quality of data were investigated in order to know the limitation of current PDF technique. Then, analysis program for obtaining high quality of PDFs was developed (MaterialsPDF program). Finally, structures of several kinds of different nanomaterials were analyzed in detail. Through the term, the importance of detailed structural analysis of nanomaterials was clarified.

Free Research Field

材料科学