Review of photoresponsive properties at SrTiO3-based heterointerfaces

• 来源期刊: 中国物理B（英文版）
• 关键词: complex oxides LaAlO3/SrTiO3 heterointerfaces two-dimensional electron gas persistent photoconductivity(PPC)
• 年，卷（期）: 2018,（11）
• 页码范围: 226-234
• 页数: 9页
• 语种: 英文
• DOI: 10.1088/1674-1056/27/11/117804

摘要

The two-dimensional electron gas at SrTiO3-based heterointerfaces has received a great deal of attention in recent years owing to their potential for the exploration of emergent physics and the next generation of electronics.One of the most fascinating aspects in this system is that the light,as a powerful external perturbation,can modify its transport properties.Recent studies have reported that SrTiO3-based heterointerfaces exhibit the persistent photoconductivity and can be tuned by the surface and interface engineering.These researches not only reveal the intrinsic physical mechanisms in the photoresponsive process,but also highlight the ability to be used as a tool for novel all-oxide optical devices.This review mainly contraposes the studies of photoresponse at SrTiO3-based heterointerfaces.