Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/35690
Title: Highly sensitive gas sensor by the LaAlO3/SrTiO3 heterostructure with Pd nanoparticle surface modulation
Authors: Chan, NY
Zhao, M
Huang, JX
Au, K
Wong, MH
Yao, HM
Lu, W
Chen, Y
Ong, CW 
Chan, HLW 
Dai, JY 
Issue Date: 2014
Publisher: Wiley-VCH
Source: Advanced materials, 2014, v. 26, no. 34, p. 5962-+ How to cite?
Journal: Advanced materials 
Abstract: The palladium nanoparticle (Pd NP)-decorated LaAlO3/SrTiO3 (LAO/STO) heterostructure is for the first time used as a hydrogen-gas sensor with very high sensitivity and workability at room temperature. The outstanding gas-sensing properties are due to the Pd NPs' catalytic effect to different gases, resulting in charge coupling between the gas molecules and the two-dimensional electron gas (2DEG) through the Pd NPs by either a direct charge exchange or a change of the electron affinity. These results provide insight into the emerging properties at LAO/STO interfaces.
URI: http://hdl.handle.net/10397/35690
ISSN: 0935-9648 (print)
1521-4095 (online)
DOI: 10.1002/adma.201401597
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