2024年4月11日发(作者：)

Flexible High-Output Nanogenerator Based on Lateral ZnO Nanowire Array

基于弹性Nanogenerator血库的横向氧化锌纳米线阵列

Guang Zhu,† Rusen Yang,† Sihong Wang, and Zhong Lin Wang*

广朱、Rusen得来,杨泗洪县得来王建民,王建民、众林*

School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia

30332-0245

材料科学与工程学院,佐治亚理工学院,亚特兰大,乔治亚州30332 - 0245

ABSTRACT We report here a simple and effective approach, named scalable

sweeping-printing-method, for fabricating flexible high-output nanogenerator (HONG) that can

effectively harvesting mechanical energy for driving a small commercial electronic component.

The technique consists of two main steps. In the first step, the vertically aligned ZnO nanowires

(NWs) are transferred to a receiving substrate to form horizontally aligned arrays. Then, parallel

stripe type of electrodes are deposited to connect all of the NWs together. Using a single layer of

HONG structure, an open-circuit voltage of up to 2.03 V and a peak output power density of ∼11

mW/cm3 have been achieved. The generated electric energy was effectively stored by utilizing

capacitors, and it was successfully used to light up a commercial light-emitting diode (LED),

which is a landmark progress toward building self-powered devices by harvesting energy from the

environment. This research opens up the path for practical applications of nanowire-based

piezoelectric nanogeneragtors for self-powered nanosystems.

摘要本文报告一个简单而有效的方法,可扩展的sweeping-printing-method命名,因为制作灵活

(香港)nanogenerator血库,能有效地收获机械能量来驱动小型商业电子器件。该技术包括两个

主要的步骤。在第一步的氧化锌奈米线垂直对齐(NWs)转移到一个接收基体形成横向对齐的

数组。然后,平行条纹沉积类型的电极连接所有的新创建在一起。采用单层结构的香港,一个

开路电压2.03 V,输出功率密度峰值∼11 mW / cm3已经达成。所产生的电力能源有效利用电

容器存储,并成功用于照亮一个商业发光二极管,这是一个具有里程碑意义的进步对建立自我

动力的设备被收获能量从环境。该研究为实际应用nanowire-based路径的压电

nanogeneragtors nanosystems为自我动力。

KEYWORDS Nanogenerator, ZnO, nanowire, light-emitting diode, self-powering

关键词Nanogenerator、氧化锌和纳米线、发光二极管、self-powering

Energy harvesting is critical to achieve independent and sustainable operations of nanodevices,

aiming at building self-powered nanosystems. 1-3 Taking the

能量收获是关键和可持续经营实现独立设备,以建设nanosystems自我动力。1 - 3以

forms of irregular air flow/vibration, ultrasonic waves, body movement, and hydraulic pressure,

mechanical energy is ubiquitously available in our living environment. It covers a wide range of

magnitude and frequency from cell contrac-tion to ocean waves. The mechanical-electric energy

conver-sion has been demonstrated using piezoelectric cantilever working at its resonating mode.

4-7 However, the applicabil-ity and adaptability of the traditional cantilever based energy

harvester is greatly impeded by the large unit size, large triggering force and specific high

resonance frequency. Recently, a series of rationally designed nanogenerators (NGs) with

piezoelectric nanowires (NWs) have shown great

potentialtoscavengetinyandirregularmechanicalenergy. 8-15 However, insufficient electric output

hinders their practical applications. We report here a simple and effective ap-proach, named

scalable sweeping-printing-method, for fab-ricating flexible high-output nanogenerator (HONG).

An open-circuit voltage of up to 2.03 V and a peak output power density of ∼11 mW/cm3 have

been achieved. The generated electric energy was effectively stored by utilizing capacitors, and

it was successfully used to light up a commercial light-emitting diode (LED), which is a landmark

progress toward building self-powered devices by harvesting energy from the environment.

Furthermore, by optimizing the density of the NWs on the substrate and with the use of multilayer

integra-tion, a peak output power density of ∼0.44 mW/cm2 and volume density of 1.1 W/cm3

are predicted.

形式的不规则的气流/振动、超音波、肢体动作、液压、机械能量可在我们的生存环境而传

播。它涵盖了广泛的程度和频率,从细胞contrac-tion海浪。电力能源的conver-sion已经被证

实使用压电悬臂梁的工作在其产生共鸣的模式。4 - 7然而,applicabil-ity和适应性,传统的基

础能源矿车悬臂大大阻碍大单位的大小、大型触发力和特定的高谐振频率。最近,一系列的

合理设计nanogenerators(上天)(NWs)压电奈米线表现出极大的

potentialtoscavengetinyandirregularmechanicalenergy。然而,这个不足,不妨碍电力输出的实际

应用。这里我们报告一个简单而有效的ap-proach,名叫可扩展的sweeping-printing-method,灵

活nanogenerator fab-ricating血库(香港)。一个开路电压2.03 V,输出功率密度峰值∼11 mW /

cm3已经达成。所产生的电力能源有效利用电容器存储,并成功用于照亮一个商业发光二极

管,这是一个具有里程碑意义的进步对建立自我动力的设备被收获能量从环境。此外,通过优

化的密度在基底,另外采用多层integra-tion,输出功率密度峰值∼0.44 mW /平方厘米和体积密

度为1.1 W / cm3进行预测。

* To whom correspondence should be addressed. E-mail: zlwang@.

*通信所应处理。电子邮件:zlwang@。

† Authors with equal contribution

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