A simple solvent thermal method and subsequent annealing process were adopted in the successful synthesis of In₂O₃ nanocuboids. Outstanding sensing performance is demonstrated in the prepared In₂O₃-based sensor including relative low working temperature (180 °C) and high response value ∼30 toward 20 ppm triethylamine. Excellent triethylamine sensor performance is due to the unique configuration of nanocuboids and a large number of oxygen vacancies in In₂O₃ nanocrystals, thus improving gas sensitivity. Furthermore, the triethylamine sensing mechanism and potential growth mechanism are also studied.

中文翻译：

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基于In ₂ O ₃纳米长方体的快速三乙胺气敏性能

In ₂ O ₃纳米长方体的成功合成采用了简单的溶剂热法和后续的退火工艺。所制备的基于In ₂ O ₃的传感器展示了出色的传感性能，包括相对较低的工作温度（180°C）和对 20 ppm 三乙胺的高响应值~30。优异的三乙胺传感器性能是由于纳米长方体的独特配置和In ₂ O ₃纳米晶体中的大量氧空位，从而提高了气体灵敏度。此外，还研究了三乙胺传感机制和潜在的生长机制。