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| 1 | Towards engineering in memristors for emerging memory and neuromorphic computing: A review显示文摘Resistive random-access memory(RRAM),also known as memristors,having a very simple device structure with two terminals,fulfill almost all of the fundamental requirements of volatile memory,nonvolatile memory,and neuromorphic characteristics.Its memory and neuromorphic behaviors are currently being explored in relation to a range of materials,such as biological materials,perovskites,2D materials,and transition metal oxides.In this review,we discuss the different electrical behaviors exhibited by RRAM devices based on these materials by briefly explaining their corresponding switching mechanisms.We then discuss emergent memory technologies using memristors,together with its potential neuromorphic applications,by elucidating the different material engineering techniques used during device fabrication to improve the memory and neuromorphic performance of devices,in areas such as ION/IOFF ratio,endurance,spike time-dependent plasticity(STDP),and paired-pulse facilitation(PPF),among others.The emulation of essential biological synaptic functions realized in various switching materials,including inorganic metal oxides and new organic materials,as well as diverse device structures such as single-layer and multilayer hetero-structured devices,and crossbar arrays,is analyzed in detail.Finally,we discuss current challenges and future prospects for the development of inorganic and new materials-based memristors. | Andrey S.Sokolov Haider Abbas Yawar Abbas Changhwan Choi | 2021 | Journal of Semiconductors2021，42，1： | 2 |
| 2 | 银掺杂忆阻器的开关特性和限流调控显示文摘为了更好地通过低成本、易操作的方法获得性能优异的忆阻器,解决忆阻器在操作电压和循环次数等方面存在的问题,制备掺杂不同质量AgⅠ的前驱体溶液。采用低成本的低温旋涂工艺完成掺银功能层的制备,再采用蒸镀工艺实现基于Ag/Ag^(+)掺杂有机-无机杂化钙钛矿(OIHP)/氧化铟锡(ITO)的忆阻器的制备。掺杂70 mg AgⅠ的忆阻器与未掺杂忆阻器相比,开启电压由0.3 V降至0.13 V,循环次数提升了约20倍,高达100次以上。此外,通过限流调控,器件可同时实现多级存储功能、非易失阻变开关功能以及阈值选通功能,并且选通器双向阈值电压高度对称,开态电流达到100μA以上,泄漏电流在1 nA以下。该研究有效地优化了忆阻器的操作电压和循环次数。 | 仉佳艺 赵思濛 杨一鸣 徐娇 唐灵芝 | 2023 | 微纳电子技术2023，60，10： | 0 |
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