Please use this identifier to cite or link to this item: https://doi.org/10.1126/sciadv.aaw7286
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dc.titleErasable and recreatable two-dimensional electron gas at the heterointerface of SrTiO3 and a water-dissolvable overlayer
dc.contributor.authorHan, K.
dc.contributor.authorHu, K.
dc.contributor.authorLi, X.
dc.contributor.authorHuang, K.
dc.contributor.authorHuang, Z.
dc.contributor.authorZeng, S.
dc.contributor.authorQi, D.
dc.contributor.authorYe, C.
dc.contributor.authorYang, J.
dc.contributor.authorXu, H.
dc.contributor.authorAriando, A.
dc.contributor.authorYi, J.
dc.contributor.authorLü, W.
dc.contributor.authorYan, S.
dc.contributor.authorRenshaw Wang, X.
dc.date.accessioned2021-12-29T04:33:32Z
dc.date.available2021-12-29T04:33:32Z
dc.date.issued2019
dc.identifier.citationHan, K., Hu, K., Li, X., Huang, K., Huang, Z., Zeng, S., Qi, D., Ye, C., Yang, J., Xu, H., Ariando, A., Yi, J., Lü, W., Yan, S., Renshaw Wang, X. (2019). Erasable and recreatable two-dimensional electron gas at the heterointerface of SrTiO3 and a water-dissolvable overlayer. Science Advances 5 (8) : eaaw7286. ScholarBank@NUS Repository. https://doi.org/10.1126/sciadv.aaw7286
dc.identifier.issn23752548
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/212280
dc.description.abstractWhile benefiting greatly from electronics, our society also faces a major problem of electronic waste, which has already caused environmental pollution and adverse human health effects. Therefore, recyclability becomes a must-have feature in future electronics. Here, we demonstrate an erasable and recreatable two-dimensional electron gas (2DEG), which can be easily created and patterned by depositing a water-dissolvable overlayer of amorphous Sr3Al2O6 (a-SAO) on SrTiO3 (STO) at room temperature. The 2DEG can be repeatedly erased or recreated by depositing the a-SAO or dissolving in water, respectively. Photoluminescence results show that the 2DEG arises from the a-SAO-induced oxygen vacancy. Furthermore, by gradually depleting the 2DEG, a transition of nonlinear to linear Hall effect is observed, demonstrating an unexpected interfacial band structure. The convenience and repeatability in the creation of the water-dissolvable 2DEG with rich physics could potentially contribute to the exploration of next generation electronics, such as environment-friendly or water-soluble electronics. Copyright © 2019 The Authors.
dc.publisherAmerican Association for the Advancement of Science
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.sourceScopus OA2019
dc.typeArticle
dc.contributor.departmentNUS NANOSCIENCE & NANOTECH INITIATIVE
dc.contributor.departmentDEPT OF PHYSICS
dc.description.doi10.1126/sciadv.aaw7286
dc.description.sourcetitleScience Advances
dc.description.volume5
dc.description.issue8
dc.description.pageeaaw7286
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