凝集誘起発光物質の前駆体HPQ-Acを修飾した逆オパール型フォトニック結晶によるアミンガスの検出

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2020/11/01

タイトル(英語): Detection of Amine Gases by Inverse Opal Photonic Crystals Infiltrated with Precursor HPQ-Ac of Aggregation-Induced Emission Luminogen

著者名: 村上　弘明（九州大学大学院システム情報科学府），澤田　茉菜（九州大学工学部電気情報工学科），木村　大樹（九州大学大学院システム情報科学府），髙原　敏生（九州大学大学院システム情報科学府），小野寺　武（九州大学大学院システム情報科学府）

著者名(英語): Hiroaki Murakami (Graduate of Information Science and Electrical Engineering, Kyushu University), Mana Sawada (Department of Electrical Engineering and Computer Science, School of Engineering, Kyushu University), Taiki Kimura (Graduate of Information Science and Electrical Engineering, Kyushu University), Toshiki Takahara (Graduate of Information Science and Electrical Engineering, Kyushu University), Takeshi Onodera (Graduate of Information Science and Electrical Engineering, Kyushu University)

キーワード: 逆オパール，フォトニック結晶，凝集誘起発光，アンモニア，匂い，センサ　　inverse opal，photonic crystal，aggregation-induced emission，ammonia，odor，sensor

要約(英語): In this study, to detect amine gases such as ammonia, a kind of biological gas, with high sensitivity, we fabricated a device that combines an inverse opal photonic crystal (IOPC) and 2-(4-oxo-3,4-dihydroquinazolin-2-yl)phenyl acetate (HPQ-Ac), a precursor of the aggregation-induced emission luminogen. IOPC silica structures (200IOPC, 350IOPC, 500IOPC) with SiO2 were respectively obtained after calcination with 200, 350, and 500 nm polystyrene (PS) nanoparticles used as templates and tetraethyl orthosilicate (TEOS) formed by self-assembly on a slide glass. Furthermore, mesopore-introduced IOPC (50 nm-350IOPC) was prepared by mixing 350 nm and 50 nm PS particles in TEOS solution. Each IOPC was infiltrated with HPQ-Ac, reacted with ammonia, and the rate of change in emission intensity owing to fluorescence was examined. The highest response was obtained for 350IOPC infiltrated with HPQ-Ac among the three IOPCs without mesopores. The 50 nm-350IOPC had higher sensitivity than 350IOPC and was found to be able to detect 50 ppb ammonia gas.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.140 No.11 （2020） 特集：Society 5.0を支えるケミカルセンサ

本誌掲載ページ: 309-314 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/140/11/140_309/_article/-char/ja/