抄録
In this work, we present fabrication and studies of pure and Pd-decorated ZnO nanostructures on Ag-coated substrates in view of gas-sensing application. The sensor elements consist of a dense structure of ZnO nanobelts. The chemical composition of the surface and gas-sensing properties of pure and Pd-doped nanostructures were studied and compared. On the surface of the Pd-decorated ZnO samples, the presence was found of Pd and Pd-Ag clusters, as well as isolated Pd2+ ions were incorporated into the ZnO lattice. The Pd-ZnO sensor element showed a better response to CO, NH3, and acetone compared to the pure ZnO sample. The Pd-ZnO sample exhibited its highest response to exposure to acetone at room temperature. We associate the improvement of sensing performance of the Pd-decorated ZnO nanostructures with the increased number of adsorption centers on the surface due to the Pd nanoparticles.
本文言語 | English |
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論文番号 | 137693 |
ジャーナル | Thin Solid Films |
巻 | 693 |
DOI | |
出版ステータス | Published - 2020 1月 1 |
ASJC Scopus subject areas
- 電子材料、光学材料、および磁性材料
- 表面および界面
- 表面、皮膜および薄膜
- 金属および合金
- 材料化学