【摘要】 基于二维钙钛矿优异的光学特性及二维结构下特殊的电学性质,该文综述了近年来基于二维钙钛矿的纳米电子器件.利用二维材料在垂直平面方向固有的电荷传输限制,基于二维钙钛矿的阻变存储器可以达到10 pA的极低工作电流;在人工突触领域,二维钙钛矿的应用可使能耗降低至400 fJ/spike,接近生物突触的能耗.最后讨论了二维钙钛矿应用在相关器件中的稳定性问题,分析在光照条件下容易发生的严重分解现象,并阐述了近年来提出的阻止碘流失的致密二维材料包覆技术,以及尚待解决的问题.未来,二维钙钛矿有望广泛应用于存储器、仿生突触等领域.更多还原

【Abstract】 Based on the excellent optical properties of two-dimensional perovskite and its special electrical properties for its two-dimensional structure,the nanoelectronic devices based on two-dimensional perovskite in recent years are reviewed in this paper. By using the inherent charge transfer limitation of two-dimensional material in vertical plane,the resistive memory based on two-dimensional perovskite can reach a very low working current of 10 pA. In the field of artificial synapses,the application of two-dimensional perovskite can reduce the energy consumption to 400 fJ/spike,close to the energy consumption level of biological synapses. Finally,the stability of devices based on perovskite is discussed,and the serious decomposition phenomenon which is easy to occur under light conditions is analyzed,as well as the dense coating technology using two-dimensional materials to prevent iodine loss proposed in recent years and a series of problems waiting to be solved. In the future,two-dimensional perovskite is expected to be widely used in resistive memory,bionic synapses and other fields.更多还原