M2の藍田君とOBの福島君（2019年度修士）の研究成果がJapanese Journal of Applied Physicsに掲載されました。
論文情報：
“Preparation of vertically oriented aromatic polyester thin films by thermal chemical vapor deposition”
Ryosuke Matsubara, Shuichiro Aida, Sota Fukushima and Atsushi Kubono
Japanese Journal of Applied Physics, 63(1), 015505 (2024).
DOI: 10.35848/1347-4065/ad1938
Abstract
Aromatic polyesters exhibit high thermal conductivity and large nonlinear optical effects by controlling the orientation of their main chains. Especially in recent years, with the development of flexible optical and electronic devices utilizing polymer thin films, out-of-plane orientation control in thin films on the order of several hundred nm is required. However, due to the rigidity of aromatic polyesters, it is difficult to control vertical orientation in thin film growth from melt or solution. In this study, we attempted to control the vertical orientation of aromatic polyester thin films from the vapor phase using a thermal CVD. From a single head-to-tail type monomer, aromatic polyester thin films with the most primitive structure, whose mp exceeds 500 °C, were successfully grown. Furthermore, it was found that the vertical orientation of the main chains was enhanced by substrate surface treatment.