Organic High-Temperature Synaptic Phototransistors for Energy-Efficient Neuromorphic Computing

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 13 vom: 25. März, Seite e2310155
1. Verfasser:	Guo, Ziyi (VerfasserIn)
Weitere Verfasser:	Zhang, Junyao, Yang, Ben, Li, Li, Liu, Xu, Xu, Yutong, Wu, Yue, Guo, Pu, Sun, Tongrui, Dai, Shilei, Liang, Haixia, Wang, Jun, Zou, Yidong, Xiong, Lize, Huang, Jia
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2024
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article energy‐efficient high temperatures neuromorphic computing organic materials synaptic phototransistors

Beschreibung
Zusammenfassung:	© 2023 Wiley‐VCH GmbH. Organic optoelectronic synaptic devices that can reliably operate in high-temperature environments (i.e., beyond 121°C) or remain stable after high-temperature treatments have significant potential in biomedical electronics and bionic robotic engineering. However, it is challenging to acquire this type of organic devices considering the thermal instability of conventional organic materials and the degradation of photoresponse mechanisms at high temperatures. Here, high-temperature synaptic phototransistors (HTSPs) based on thermally stable semiconductor polymer blends as the photosensitive layer are developed, successfully simulating fundamental optical-modulated synaptic characteristics at a wide operating temperature range from room temperature to 220°C. Robust optoelectronic performance can be observed in HTSPs even after experiencing 750 h of the double 85 testing due to the enhanced operational reliability. Using HTSPs, Morse-code optical decoding scheme and the visual object recognition capability are also verified at elevated temperatures. Furthermore, flexible HTSPs are fabricated, demonstrating an ultralow power consumption of 12.3 aJ per synaptic event at a low operating voltage of -0.05 mV. Overall, the conundrum of achieving reliable optical-modulated neuromorphic applications while balancing low power consumption can be effectively addressed. This research opens up a simple but effective avenue for the development of high-temperature and energy-efficient wearable optoelectronic devices in neuromorphic computing applications
Beschreibung:	Date Revised 28.03.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.202310155