Time-Tailoring van der Waals Heterostructures for Human Memory System Programming

Adv Sci (Weinh). 2019 Aug 26;6(20):1901072. doi: 10.1002/advs.201901072. eCollection 2019 Oct 16.

Abstract

The human memory system plays an indispensable role in oblivion, learning, and memorization. Implementing a memory system within electronic devices contributes an important step toward constructing a neuromorphic system that emulates advanced mental functions of the human brain. Given the complex time-tailoring requirement, integrating a human memory system into one system is a great challenge. Here, one van der Waals heterostructure with flexible time-tailoring ability is demonstrated, which can meet the high requirement of human memory system programming. By stacking volatile and nonvolatile function layers, all basic memory types, including sensory memory, short-term and long-term memory are integrated into the device and the transition between these memory types are flexible. Moreover, decision-making action and in situ result storage are also demonstrated. It is anticipated that the demonstrated time-tailoring system will support the model of a human memory system.

Keywords: decision‐making ability; human memory; time‐tailoring ability; van der Waals heterostructures.