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タイトル: | A new schematic for poly(3-alkylthiophene) in an amorphous film studied using a novel structural index in infrared spectroscopy |
著者: | Shioya, Nobutaka https://orcid.org/0000-0002-2915-894X (unconfirmed) Shimoaka, Takafumi https://orcid.org/0000-0001-9131-9831 (unconfirmed) Eda, Kazuo Hasegawa, Takeshi https://orcid.org/0000-0001-5574-9869 (unconfirmed) |
著者名の別形: | 塩谷, 暢貴 下赤, 卓史 枝, 和男 長谷川, 健 |
発行日: | 2015 |
出版者: | Royal Society of Chemistry (RSC) |
誌名: | Physical Chemistry Chemical Physics |
巻: | 17 |
号: | 20 |
開始ページ: | 13472 |
終了ページ: | 13479 |
抄録: | The molecular structure of poly(3-alkylthiophene-2, 5-diyl) in an amorphous film reveals that the short axis of the thiophene ring is kept highly oriented parallel to the substrate, whereas the long axis along the polymer chain is largely disordered. This is unveiled by infrared p-polarized multiple-angle incidence resolution spectroscopy (pMAIRS), achieved by analyzing the orientation angles of three mutually orthogonal vibrational modes localized on the thiophene ring with the aid of a newly developed structural index. This new analytical technique is useful irrespective of the crystallinity of the thin film. As a result, the intrinsic chemical parameters controlling the molecular orientation are understood in a unified manner, and the reason that the hexyl group gives the best results for a photovoltaic cell is also revealed. |
著作権等: | This is the accepted version of the following article, which has been published in final form at http://doi.org/10.1039/C5CP01024A This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/218638 |
DOI(出版社版): | 10.1039/C5CP01024A |
PubMed ID: | 25932995 |
出現コレクション: | 学術雑誌掲載論文等 |
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