Au nanoparticle modified single-crystalline p-type LaRhO3/SrTiO3 heterostructure for high performing VOCs sensor
文献类型：期刊论文
| 作者 | Meng, Zhi2,4; Tong, Bin1,2,3; Shen, Lei2,4; Xu, Liqiang2; Chu, Weiwei2,4; Wei, Wensen4; Xu, Xueli2,4; Liu, Yonglai4; Pi, Li2,4 ; Zhang, Shile4
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| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 46 |
| ISSN号 | 0272-8842 |
| 关键词 | Single-crystalline LaRhO3 thin film Ethanol sensor Au decoration Chemisorbed oxygen |
| DOI | 10.1016/j.ceramint.2020.05.290 |
| 通讯作者 | Meng, Gang(menggang@aiofm.ac.cn) ; Sheng, Zhigao(zhigaosheng@hmfl.ac.cn) |
| 英文摘要 | Since the discovery of two-dimensional electron gas (2DEG) confined at perovskite LaAlO3/SrTiO3 (LAO/STO) interface, extensive efforts have been devoted to explore novel high-performance all oxide electronic devices, including gas sensors. Among perovskite oxides, LaRhO3 (LRO) possesses unique p-type conductivity and catalytic properties, which offer promising benefits for sensing volatile organic compounds (VOCs) molecules. In this work, single-crystalline p-type LRO thin film was epitaxially grown on STO (110) substrate as a high-quality sensing channel. Drastic improvement of sensing performance of LRO probed by 50 ppm ethanol was accomplished by appropriate Au decoration layer, e.g., an increased response (from 2.5 to 8.4), reduced optimal operation temperature (from 325 to 275 degrees C), decrease of response/recovery time (from 100/85 to 54/23 s) and improvement of detection limit (from 5000 to 250 ppb). X-ray photoelectron spectroscopy (XPS) indicates that Au nanoparticles facilitates the formation of reactive chemisorbed oxygen species, which substantially trigger the charge exchange occurring at ethanol/LRO interface. Our work highlights the importance of surface engineering toward high-performance perovskite based VOCs sensors. |
| WOS关键词 | GAS SENSOR ; ELECTRON-GAS ; TEMPERATURE ; PEROVSKITE ; HYDROGENATION ; DESIGN ; OXIDES ; OXYGEN ; MODEL ; ND |
| 资助项目 | National Key R&D Program of China[2017YFA0303603] ; National Key R&D Program of China[2016YFA0401803] ; National Natural Science Foundation of China (NSFC)[11574316] ; National Natural Science Foundation of China (NSFC)[U1532155] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH011] ; President Foundation of Hefei Institutes of Physical Science, CAS[YZJJ2018QN16] ; CAS Pioneer Hundred Talents Program ; High Magnetic Field Laboratory of Anhui Province |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000558707400030 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; Key Research Program of Frontier Sciences, CAS ; President Foundation of Hefei Institutes of Physical Science, CAS ; CAS Pioneer Hundred Talents Program ; High Magnetic Field Laboratory of Anhui Province |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/70685]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Meng, Gang; Sheng, Zhigao |
| 作者单位 | 1.Chinese Acad Sci, Anhui Prov Key Lab Photon Devices & Mat, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 4.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condi, High Magnet Field Lab, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Meng, Zhi,Tong, Bin,Shen, Lei,et al. Au nanoparticle modified single-crystalline p-type LaRhO3/SrTiO3 heterostructure for high performing VOCs sensor[J]. CERAMICS INTERNATIONAL,2020,46. |
| APA | Meng, Zhi.,Tong, Bin.,Shen, Lei.,Xu, Liqiang.,Chu, Weiwei.,...&Sheng, Zhigao.(2020).Au nanoparticle modified single-crystalline p-type LaRhO3/SrTiO3 heterostructure for high performing VOCs sensor.CERAMICS INTERNATIONAL,46. |
| MLA | Meng, Zhi,et al."Au nanoparticle modified single-crystalline p-type LaRhO3/SrTiO3 heterostructure for high performing VOCs sensor".CERAMICS INTERNATIONAL 46(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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