ノグチ　ユタカ   NOGUCHI Yutaka   野口　裕    所属   明治大学  理工学部    職種   専任教授
言語種別	英語
発行・発表の年月	2025/01
形態種別	学術雑誌
査読	査読あり
招待論文	招待あり
標題	Enhancement of Spontaneous Orientation Polarization in Glassy Organic Semiconductor Mixtures
執筆形態	共著(筆頭者以外)
掲載誌名	The Journal of Physical Chemistry B
掲載区分	国外
出版社・発行元	ACS Publications
巻・号・頁	129(2),pp.779-787
総ページ数	9
国際共著	国際共著
著者・共著者	Alexander Hofmann, Albin Cakaj, Lea Kolb, Yutaka Noguchi, Wolfgang Brütting
概要	The alignment of permanent dipole moments and the resulting spontaneous orientation polarization (SOP) are commonly observed in evaporated neat films of polar organic molecules and lead to a so-called giant surface potential. In the case of mixed films, often enhanced molecular orientation is observed, i.e., a higher degree of alignment, in comparison to neat layers, if it is diluted into a suitable (nonpolar) host. So far, different possible influences on molecular orientation have been discussed, with the most prominent probably being the so-called surface equilibration model. In this contribution, we discuss how surface equilibration can influence orientation in mixed layers and which other intermolecular interactions have to be considered to explain the observed enhancement of SOP in mixed layers.
DOI	10.1021/acs.jpcb.4c07138