Title :
Polarization induced high mobility wide electron slabs in graded pseudomorph MgxZn1−xO/ZnO heterostructure
Author :
Ye, J.D. ; Lo, G.Q. ; Gu, S.L. ; Teo, K.L.
Author_Institution :
Inst. of Microelectron., Singapore, Singapore
Abstract :
In this work, we demonstrate the layer-by-layer epitaxy of Mg-composition graded ZnMgO/ZnO heterostructure on sapphire substrate by MOVPE technique. The polarization field tailored by the graded heterostructure induces wide electron slabs with high mobility at low temperature. The transport properties and mechanisms have been discussed in details.
Keywords :
II-VI semiconductors; MOCVD; magnesium compounds; semiconductor epitaxial layers; semiconductor growth; semiconductor heterojunctions; vapour phase epitaxial growth; wide band gap semiconductors; zinc compounds; Al2O3; MOVPE technique; Mg-composition graded ZnMgO-ZnO heterostructure; MgxZn1-xO-ZnO; graded pseudomorph heterostructure; layer-by-layer epitaxy; polarization field; polarization induced high mobility wide electron slabs; sapphire substrate; transport mechanisms; transport properties; Epitaxial growth; Epitaxial layers; Temperature measurement; Zinc oxide;
Conference_Titel :
Optoelectronic and Microelectronic Materials and Devices (COMMAD), 2010 Conference on
Conference_Location :
Canberra, ACT
Print_ISBN :
978-1-4244-7334-2
Electronic_ISBN :
1097-2137
DOI :
10.1109/COMMAD.2010.5699741