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首页> 外文期刊>Japanese journal of applied physics >Room temperature ethanol sensor based on ZnO prepared via laser ablation in water
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Room temperature ethanol sensor based on ZnO prepared via laser ablation in water

机译：水中激光烧蚀制备的基于ZnO的室温乙醇传感器

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摘要

The present work reports on room-temperature ethanol sensing performance of ZnO nanospheres and nanorods prepared using pulsed laser ablation in water. Nanosecond and millisecond lasers were used to prepare ZnO nanomaterials with hexagonal wurtzite crystal structure. The two contrasting nanostructures were tested as gas sensors towards volatile compounds such as ethanol, ammonia, and acetone. At room temperature, devices based on both ZnO nanomaterials demonstrated selectivity for ethanol vapor. The sensitivity of nanospheres was somewhat higher compared to that of nanorods, with response values of similar to 19 and similar to 14, respectively, towards 250 ppm. Concentrations as low as 50 ppm could be easily detected. (C) 2017 The Japan Society of Applied Physics.
机译：本工作报告了在水中使用脉冲激光烧蚀制备的ZnO纳米球和纳米棒的室温乙醇感测性能。纳秒和毫秒激光用于制备具有六方纤锌矿晶体结构的ZnO纳米材料。测试了两种形成对比的纳米结构，作为对挥发性化合物（例如乙醇，氨水和丙酮）的气体传感器。在室温下，基于两种ZnO纳米材料的器件均表现出对乙醇蒸气的选择性。与纳米棒相比，纳米球的灵敏度略高，其响应值分别接近19和14，对250 ppm。可以轻松检测出低至50 ppm的浓度。 （C）2017年日本应用物理学会。

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