Corrigendum: Hydrogel microphones for stealthy underwater listening.
Corrigendum: Hydrogel microphones for stealthy underwater listening.
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DOI：
10.1038/ncomms13114
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发表时间：
2016-09-28
影响因子：
16.6
通讯作者：
Tan, Li
中科院分区：
文献类型：
--
作者：
Gao, Yang;Song, Jingfeng;Li, Shumin;Elowsky, Christian;Zhou, You;Ducharme, Stephen;Chen, Yong Mei;Zhou, Qin;Tan, Li
探索海洋中丰富的资源需要具有高灵敏度的水声探测器，能够从更远的距离接收低频声音，并实现零反射。在这里，我们通过将易于变形的金属纳米颗粒网络集成到水凝胶基质中作为无腔麦克风来解决这两个挑战。由于金属纳米粒子可以作为夹杂物被密集植入，甚至可以以相干阵列的形式排列，因此该麦克风可以检测到不同角度的静载荷和气流，以及20 Hz到3 kHz的水声信号，幅度低至4 pa。与介质电容器或腔式麦克风通过使器件沿厚度方向变形来响应刺激不同，这种水凝胶器件通过双电层的瞬时调制来响应，从而产生非凡的灵敏度(217 nF kpa−1或24 μC N−1，偏置为1.0 V)，而无需使用任何信号放大工具。
Exploring the abundant resources in the ocean requires underwater acoustic detectors with a high-sensitivity reception of low-frequency sound from greater distances and zero reflections. Here we address both challenges by integrating an easily deformable network of metal nanoparticles in a hydrogel matrix for use as a cavity-free microphone. Since metal nanoparticles can be densely implanted as inclusions, and can even be arranged in coherent arrays, this microphone can detect static loads and air breezes from different angles, as well as underwater acoustic signals from 20 Hz to 3 kHz at amplitudes as low as 4 Pa. Unlike dielectric capacitors or cavity-based microphones that respond to stimuli by deforming the device in thickness directions, this hydrogel device responds with a transient modulation of electric double layers, resulting in an extraordinary sensitivity (217 nF kPa−1or 24 μC N−1at a bias of 1.0 V) without using any signal amplification tools.
用于水下隐形聆听的水凝胶麦克风
影响因子：
16.6
作者：
Gao Y;Song J;Li S;Elowsky C;Zhou Y;Ducharme S;Chen YM;Zhou Q;Tan L
通讯作者：
Tan L