有机-无机杂化钙钛矿中的自旋输运和磁场效应

Spin Transport and Magnetic Field Effects in Organic-inorganic Hybrid Perovskites

有机-无机杂化钙钛矿(OIHPs)是现阶段较为新颖的光电子材料之一,已被广泛地应用于太阳能电池和发光领域。然而,该类材料已被证实具有较强的自旋轨道耦合和Rashba效应,并且具备较高的载流子迁移率和消光系数。因此,这为实现自旋注入和自旋调控提供了重要依据。本文从三个方面对有机-无机杂化钙钛矿的自旋光电子学展开论述,首先是自旋极化电子在钙钛矿自旋器件中的输运研究以及铁磁-钙钛矿自旋界面研究;其次,是该材料在激发态下的磁场效应研究;最后,就钙钛矿自旋光电子学未来发展进行了探讨和评论。

Organic-inorganic hybrid perovskites(OIHPs)are one of the most novel optoelectronic hybrid materials at present.They have been widely studied in the fields of solar cells and light emitting devices.Nevertheless,these materials have been demonstrated to exhibit relatively stronger spin-orbit coupling(SOC)and Rashba effect,as well as larger carrier mobilities and extinction coefficients.Thus,these form important bases for realizing spin injection and spin manipulation.Herein,spin-optoelectronics of OIHPs will be discussed by three aspects.First,the spin-polarized electronic transport and ferromagnetic-OIHPs spinterfaces are introduced.Then,magnetic field effects of OIHPs at excited states are given.Finally,the future development of OIHPs in the spin-optoelectronics is deeply discussed and commented.