Polar liquid molecule induced transport property modulation at LaAlO3/SrTiO3heterointerface

K. Au; D. F. Li; N. Y. Chan; Jiyan Dai

doi:10.1002/adma.201200673

Polar liquid molecule induced transport property modulation at LaAlO₃/SrTiO₃heterointerface

K. Au, D. F. Li, N. Y. Chan, Jiyan Dai

Research output: Journal article publication › Journal article › Academic research › peer-review

37 Citations (Scopus)

Abstract

Application of LaAlO3/SrTiO3interfacial two-dimensional electron gas (2DEG) as a polar molecule sensor is demonstrated. The sensing mechanism is due to the formation of a metal-semiconductor Schottky junction when the center of LaAlO3surface is covered with polar molecules such as water. These results also evidence the existence of a polarization field inside the LaAlO3layer. KGaA, Weinheim.

Original language	English
Pages (from-to)	2598-2602
Number of pages	5
Journal	Advanced Materials
Volume	24
Issue number	19
DOIs	https://doi.org/10.1002/adma.201200673
Publication status	Published - 15 May 2012

Keywords

interface
LaAlO /SrTiO 3 3
polar molecule sensor
two-dimensional electron gas

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

More information

10.1002/adma.201200673

Cite this

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