Nonvolatile van der Waals Heterostructure Phototransistor for Encrypted Optoelectronic Logic Circuit
Nonvolatile van der Waals Heterostructure Phototransistor for Encrypted Optoelectronic Logic Circuit
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DOI：
10.1021/acsnano.1c10978
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发表时间：
2022-03-22
期刊：
影响因子：
17.1
通讯作者：
Miao, Feng
中科院分区：
文献类型：
--
作者：
Wang, Shuang;Pan, Xuan;Miao, Feng
随着信息安全需求的不断增长，利用设备固有的物理特性来设计安全的逻辑电路的兴趣激增。本文提出了一种基于非易失性范德华（vdW）异质结构光电晶体管实现安全光电逻辑电路的创新方法。由WSe2和h-BN片组成的光电晶体管在电和光刺激的协同作用下表现出非易失性电导的电可调性。这一有趣的特性使得光电晶体管可以作为设计安全光电逻辑电路的基石，其中信息加密可以通过设计的密钥直接实现。在此基础上，我们将两个光电晶体管组装成光电混合电路，并以可重构的方式实现功能完整的逻辑门（即NOR， XOR和NAND）。我们的研究结果强调了非易失性光电晶体管在可重构安全光电电路开发中的潜力。
With the rising demand for information security, there has been a surge of interest in harnessing the intrinsic physical properties of device for designing a secure logic circuit. Here we provide an innovative approach to realize the secure optoelectronic logic circuit based on nonvolatile van der Waals (vdW) heterostructure phototransistors. The phototransistors comprising WSe2 and h-BN flakes exhibit electrical tunability of nonvolatile conductance under cooperative operations of electrical and light stimulus. This intriguing feature allows the phototransistor to work as a building block for the design of secure optoelectronic logic circuit in which the information encryption can be directly achieved with a designed secret key. On the basis of this approach, we assemble two phototransistors into an optoelectronic hybrid circuit and implement a functionally complete set of logic gates (i.e., NOR, XOR, and NAND) in a reconfigurable manner. Our findings highlight the potential of nonvolatile phototransistors for the development of reconfigurable secure optoelectronic circuits.