Control of structural phase transition in diacetylene nanocrystal and fabrication of high-performance optoelectronic materials

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05618
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Polymer/Textile materials
• Research Institution: Tohoku University
• Principal Investigator: ONODERA Tsunenobu 東北大学, 多元物質科学研究所, 助教 (10533466)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ポリジアセチレン / ナノ結晶 / 構造相転移 / 応力ー歪み挙動 / 三次非線形光学特性

Outline of Final Research Achievements

We have successfully fabricated well-defined diacetylene (DA) nanocrystals, and clarified size-dependence of structural phase transition in solid-state polymerization of the DA nanocrystals. In particular, solid-state polymerization of DA nanofibers quantitatively proceeded due to suitable stress-strain behavior, compared with both nanocrystal and bulk crystal. In addition, we found that third-order nonlinear optical susceptibility of polydiacetylene nanofiber was superior to that of bulk crystal.

Free Research Field

有機材料科学