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Volume 5 Issue 2
Mar.  2023
Article Contents

Pan H Y, Zhou L H, Zheng W, Liu X H, Zhang J, Pinna N. 2023. Atomic layer deposition to heterostructures for application in gas sensors. Int. J. Extrem. Manuf. 5 022008.
Citation: Pan H Y, Zhou L H, Zheng W, Liu X H, Zhang J, Pinna N. 2023. Atomic layer deposition to heterostructures for application in gas sensors. Int. J. Extrem. Manuf. 022008.

Atomic layer deposition to heterostructures for application in gas sensors


doi: 10.1088/2631-7990/acc76d
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  • Publish Date: 2023-03-09
  • Atomic layer deposition (ALD) is a versatile technique to deposit metals and metal oxide sensing materials at the atomic scale to achieve improved sensor functions. This article reviews metals and metal oxide semiconductor (MOS) heterostructures for gas sensing applications in which at least one of the preparation steps is carried out by ALD. In particular, three types of MOS-based heterostructures synthesized by ALD are discussed, including ALD of metal catalysts on MOS, ALD of metal oxides on MOS and MOS core-shell (C-S) heterostructures. The gas sensing performances of these heterostructures are carefully analyzed and discussed. Finally, the further developments required and the challenges faced by ALD for the synthesis of MOS gas sensing materials are discussed.

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Atomic layer deposition to heterostructures for application in gas sensors

doi: 10.1088/2631-7990/acc76d
  • 1 College of Physics, Qingdao University, Qingdao 266071, People's Republic of China;
  • 2 Institut für Chemie and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany

Abstract: 

Atomic layer deposition (ALD) is a versatile technique to deposit metals and metal oxide sensing materials at the atomic scale to achieve improved sensor functions. This article reviews metals and metal oxide semiconductor (MOS) heterostructures for gas sensing applications in which at least one of the preparation steps is carried out by ALD. In particular, three types of MOS-based heterostructures synthesized by ALD are discussed, including ALD of metal catalysts on MOS, ALD of metal oxides on MOS and MOS core-shell (C-S) heterostructures. The gas sensing performances of these heterostructures are carefully analyzed and discussed. Finally, the further developments required and the challenges faced by ALD for the synthesis of MOS gas sensing materials are discussed.

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