Synaptic devices based on semiconductor nanocrystals

Mingxuan BU; Yue WANG; Lei YIN; Zhouyu TONG; Yiqiang ZHANG; Deren YANG; Xiaodong PI

doi:10.1631/FITEE.2100551

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Front. Inform. Technol. Electron. Eng ›› 2022, Vol. 23 ›› Issue (11) : 1579-1601. DOI: 10.1631/FITEE.2100551

Review

Synaptic devices based on semiconductor nanocrystals

Mingxuan BU¹^,² ,
Yue WANG¹^,² ,
Lei YIN¹^,² ,
Zhouyu TONG¹^,² ,
Yiqiang ZHANG³ ,
Deren YANG¹^,²^,⁴^,⁵ ,
Xiaodong PI¹^,²^,⁴^,⁵

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Abstract

To meet a growing demand for information processing, brain-inspired neuromorphic devices have been intensively studied in recent years. As an important type of neuromorphic device, synaptic devices have attracted strong attention. Among all the kinds of materials explored for the fabrication of synaptic devices, semiconductor nanocrystals (NCs) have become one of the preferred choices due to their excellent electronic and optical properties. In this review, we first introduce the research background of synaptic devices based on semiconductor NCs and briefly present the basic properties of semiconductor NCs. Recent developments in the field of synaptic devices based on semiconductor NCs are then discussed according to the materials employed in the active layers of the devices. Finally, we discuss existing problems and challenges of synaptic devices based on semiconductor NCs.

Keywords

Semiconductor nanocrystal / Synaptic devices / Neuromorphic computing

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Mingxuan BU, Yue WANG, Lei YIN, Zhouyu TONG, Yiqiang ZHANG, Deren YANG, Xiaodong PI. Synaptic devices based on semiconductor nanocrystals. Front. Inform. Technol. Electron. Eng, 2022, 23(11): 1579‒1601 https://doi.org/10.1631/FITEE.2100551