2021年第68回応用物理学会春季学術講演会

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一般セッション(口頭講演)

12 有機分子・バイオエレクトロニクス » 12.7 医用工学・バイオチップ

[16p-Z22-1~15] 12.7 医用工学・バイオチップ

2021年3月16日(火) 13:30 〜 17:45 Z22 (Z22)

宇野 重康(立命館大)、加治佐 平(徳島大)、當麻 真奈(東工大)

14:30 〜 14:45

[16p-Z22-5] Ultra-sensitive NH3 Gas Sensor based on Electrospinning SnO2-CuO nanowires

〇(M2)Chuanlai Zang1、Chihiro Okutani1、Yasuo Yano1、Hiroyasu Yamahara1、Tomoyuki Yokota1、Hitoshi Tabata1 (1.The Univ. of Tokyo)

キーワード:Gas sensor, Metal oxide, Nanowires

Gas sensors play an important role in industrial safety, environmental protection and human health monitoring in recent years. Gas sensors based on one-dimensional (1D) semiconducting metal-oxide (MOX) exhibit inspiring sensitivity, fast response time and low power consumption. Ammonia (NH3) is one of the most important pollutants or gaseous metabolites of the human body. In this work, NH3 gas sensing performance based on electrospinning SnO2-CuO nanowires was studied. The SnO2-CuO heterojunction nanowires exhibit high sensitivity and quick responds towards ammonia down to 1ppm at room temperature. Furthermore, when the operating temperature increased to 100 ℃, a seven times higher responds was shown compared to the room temperature.