Scholarlink

<p>ZnO nanoparticles decorated VO<sub>2</sub>(B) ultrathin nanosheets array structure was constructured to improve the sensing performance of VO<sub>2</sub>(B) nanosheet to NO<sub>2</sub> at room temperature. The composite structure was synthesized by the combination method of hydrothermal method, water bath and post annealing. ZnO nanoparticles with uniform sizes were attached on the surface of VO<sub>2</sub>(B) ultrathin nanosheet with thickness at Debye scale. The effect of ZnO content on the room temperature NO<sub>2</sub> sensing performance of VO<sub>2</sub>(B) ultrathin nanosheet arrays was studied. The response of ZnO/VO<sub>2</sub>(B) composite structure to 5 ppm NO<sub>2</sub> reached up to 2.71, which is 2 times high than that of pure VO<sub>2</sub>(B) ultrathin nanosheet arrays. The performance improvement is related to deep level electron transfer and barrier height modulation based on ZnO/VO<sub>2</sub>(B) n-n heterojunction. Therefore, activating VO<sub>2</sub> nanosheets by ZnO nanoparticles is a promising method for designing and manufacturing high-performance room temperature NO<sub>2</sub> gas sensors.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

ZnO nanoparticles enhanced room temperature NO2 sensing performance of VO2(B) ultrathin vertical nanosheet array

  • 期刊论文

  • 发表日期：

    2025年8月25日

查看全文
  • Jiran Liang,
  • Hao Chen,
  • Wanwan Tai,
  • Penghui Ge,
  • Xiaoping Gao,
  • Hairun Zhang,
  • Yu Han

摘要

ZnO nanoparticles decorated VO2(B) ultrathin nanosheets array structure was constructured to improve the sensing performance of VO2(B) nanosheet to NO2 at room temperature. The composite structure was synthesized by the combination method of hydrothermal method, water bath and post annealing. ZnO nanoparticles with uniform sizes were attached on the surface of VO2(B) ultrathin nanosheet with thickness at Debye scale. The effect of ZnO content on the room temperature NO2 sensing performance of VO2(B) ultrathin nanosheet arrays was studied. The response of ZnO/VO2(B) composite structure to 5 ppm NO2 reached up to 2.71, which is 2 times high than that of pure VO2(B) ultrathin nanosheet arrays. The performance improvement is related to deep level electron transfer and barrier height modulation based on ZnO/VO2(B) n-n heterojunction. Therefore, activating VO2 nanosheets by ZnO nanoparticles is a promising method for designing and manufacturing high-performance room temperature NO2 gas sensors.