Affiliation:
1. Frontier Institute of Science and Technology and State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710054 China
2. State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Engineering Xi'an Jiaotong University Xi'an 710049 China
3. Hubei Key Laboratory of Engineering Structural Analysis and Safety Assessment Department of Engineering Mechanics School of Aerospace Engineering Huazhong University of Science and Technology Wuhan 430074 China
4. School of Chemistry Xi'an Jiaotong University Xi'an 710054 China
Abstract
AbstractElectrets are commonly used charged insulators that generate a quasi‐permanent electric field. However, when conventional electrets come into direct contact with semiconductors, the energy level mismatch at the interface results in low memory speed and high energy consumption of electret devices due to both charge injection and storage being non‐conducive. To address this, the n‐type semiconductor N,N′‐dioctyl‐3,4,9,10‐perylene tetracarboxylic diimide (C8‐PTCDI) is converted to C8‐PTCDI (D) via oxygen degradation. The resulting C8‐PTCDI (D) electrets, when charged using an electric field and/or light, retain the energy level of the n‐type semiconductors to facilitate charge trapping. They also exhibit deeper trap energy levels and increased trap density, thereby enhancing the sheet charge density of C8‐PTCDI (D) electrets (7.47 × 1012 cm−2). As a result, devices based on n‐type electrets demonstrate lower operation voltage (2 V) of transistors, lower operation voltage (20 V) of memories, and lower energy consumption (3.5 fJ per spike) of artificial synapses compared to those without n‐type electrets.
Funder
National Natural Science Foundation of China
China Association for Science and Technology
Fundamental Research Funds for the Central Universities
Cyrus Tang Foundation
Subject
Electrochemistry,Condensed Matter Physics,Biomaterials,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献