压电陶瓷异质结中能量收集与压力感应协同作用的比较研究

IF 2.2 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Zihao Liang;Emad Iranmanesh;Shuxin Lin;Weipeng Xuan;Hang Zhou
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引用次数: 0

摘要

在这封信中,通过背靠背配置两个氧化锌/聚(3-己基噻吩)异质结二极管,设计并构建了一种新型全柔性压电双极结晶体管(n-p-n PBJT)。n-p-n PBJT 作为信号介导器件,同时提供电流和电压输出。n-p-n PBJT 在可穿戴应用中的应用得到了验证,在这种应用中,能量收集和传感之间形成了独特的协同效应。在机械应力作用下,输出信号会被放大(无需前置放大器电路),这使其成为高性能传感器的合适候选器件(电压灵敏度为 0.49 V/kPa,比压电 p-n 异质结高四倍)。作为一种可穿戴的能量收集器,输出信号经过整流(无信号调节电路),可产生 2.9 µW 的峰值输出功率,是压电 p-n 二极管的十倍。n-p-n PBJT 的出色性能为提高器件性能提供了一种新策略,可用于新兴的可穿戴电子产品应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Comparative Study on Synergy Between Energy Harvesting and Pressure Sensing in Piezotronic Heterojunctions
In this letter, a novel fully flexible piezotronic bipolar junction transistor (n-p-n PBJT) is designed and constructed by configuring two ZnO/Poly(3-hexylthiophene) heterojunction diodes back to back. The n-p-n PBJT acts as a signal-mediated device providing both current and voltage as the outputs. The utilization of the n-p-n PBJT in wearable applications is testified where a unique synergy between energy harvesting and sensing is found. Under mechanical stress, the output signal is amplified (with no preamplifier circuitry), which makes it a proper candidate as a high-performance sensor (voltage-based sensitivity is extracted as 0.49 V/kPa, four times higher than piezotronic p-n heterojunction). As a wearable energy harvester, the output signal is rectified (with no signal regulation circuitry), and it generates a peak output power of 2.9 µW, which is ten times higher than that of the piezotronic p-n diode. The outstanding performance of the n-p-n PBJT provides a new strategy to improve device performance for the emerging application in wearable electronics.
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来源期刊
IEEE Sensors Letters
IEEE Sensors Letters Engineering-Electrical and Electronic Engineering
CiteScore
3.50
自引率
7.10%
发文量
194
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