Electronic skin

Group 9

B01901095 許宗嫄

B01901103 詹朝舜

B01901110 李沂芳

What’s electronic skin?

• Something like this :

but advanced!!!

What’s electronic skin?

• aims to reproduce the touch sensitivity of the human skin

• Like Human skin: the function of sensor

• Soft, flexible, thin

• Can stick to real skin or other material

• Combine antenna, wireless power coil etc.

• https://www.youtube.com/watch?t=39&v=boGUo-wseHY

Basic Structure

Basic Structure and Materials

• Different methods, functions and structures

High Sensitivity material

electrically measured Soft base

pressure-sensitive rubber (PSR)

field effect transistor (FET), semiconductor

nanowires

polyimide (聚亞醯胺)

Other Materials

• good electrical properties and can operate at low voltages

• America: new material called QTC

• Japan:橡膠、導電石墨和新型電晶體

Variety of Electronic skin

Thermal sensor

• Temperature Coefficient of Resistance

• TCR array

Pressure Sensor

Structure

• Tissue paper

• AuNWs

• PDMS sheet

• Interdigitated electrodes on PDMS sheet

Pressure Sensor

Structure

Mechanism

PressureMore AuNWs

in contact with electrode

More conduct pathways

Increase in current

Performance

Characteristics – robust & flexibleEnergy consumption - <30 μWSensitivity - 13 Pa Time resolution - <17 msStability - >50,000 loading–unloading cycles

Detection of other types of mechanical forces –Torsion& bending

Detection of other types of mechanical forces

Bending Torsion

Application – Voice Recognition

• attached onto a person’s neck monitoring pressure difference of the muscle movement during speech

• noninvasive

• I-t curve characteristic peaks and valley

Application – Wrist Pulse

• placed over the radical artery of wrist

• noninvasive, high sensitivity, fast

• diagnosing asymptomatic cardiovascular disease like atherosclerosis

• I-t curve indicating wrist pulse

• beat frequency

EEG, ECG and EMG

• Continuous physiological monitoring

• Incorporate off-the-shelf chips into flexible electronic patches

• rigid functional parts + microfluidics

The Future Of Application

https://aftermathnews.wordpress.com/2010/09/14/e-skin-the-breakthrough-that-lets-robots-feel/

“So we’re one step closer to the mechanical girl.”

• 機器人皮膚• 義肢

• 人造電子皮膚取代真皮移植

http://news.hc3i.cn/art/201310/27235.htm

• 身體配飾• 隨身證件

http://www.digitaltrends.com/mobile/motorola-google-patents-throat-tattoo-microphone/

http://www.thinkgeek.com/stuff/41/moodinq-tattoo.shtml

• 健康監測器

https://digiwell.de/media/image/thumbnail/DIG10055-eSkin-Tattoo_720x600.jpg

http://instrument.ofweek.com/2014-10/ART-320042-8420-28889291.html

• 電子繃帶

http://xismart.net/7140.html

目前的限制

• 不能長時間使用

• 隨著人體細胞新陳代謝而脫落

• 穩定獨立電源

相關字

• Electronic skin• e-skin• 電子タトゥー• artificial skin • electronic tattoo

Reference• Shu Gong, Willem Schwalb, Yongwei Wang, Yi Chen, Yue Tang, Jye Si, Bijan Shirinzadeh & Wenlong Cheng,

A wearable and highly sensitive pressure sensor with ultrathin gold nanowires. Nature Communications 5, February 2014.

• R. Chad Webb, Andrew P. Bonifas, Alex Behnaz, Yihui Zhang, Ki Jun Yu, Huanyu Cheng, Mingxing Shi, Zuguang Bian, Zhuangjian Liu, Yun-Soung Kim, Woon-Hong Yeo, Jae Suk Park, Jizhou Song, Yuhang Li, Yonggang Huang, Alexander M. Gorbach & John A. Rogers, Ultrathin conformal devices for precise and continuous thermal characterization of human skin. Nature Materials 12, 938–944 (2013)

• Sheng Xu, Yihui Zhang, Lin Jia, Kyle E. Mathewson, Kyung-In Jang, Jeonghyun Kim, Haoran Fu, Xian Huang, Pranav Chava, Renhan Wang, Sanat Bhole, Lizhe Wang, Yoon Joo Na, Yue Guan, Matthew Flavin, ZheshenHan, Yonggang Huang, John A. Rogers, Soft Microfluidic Assemblies of Sensors, Circuits, and Radios for the Skin. Science (2014)

• Michael Melzer, Martin Kaltenbrunner, Denys Makarov, Dmitriy Karnaushenko, Daniil Karnaushenko, Tsuyoshi Sekitani, Takao Someya & Oliver G. Schmidt, Imperceptible magnetoelectronics. Nature Communications 6, January 2015.

• http://www.medgadget.com/2014/04/flexible-skin-worn-patch-monitors-eeg-ecg-sends-recorded-data-via-wireless-video.html

• http://www.iflscience.com/technology/flexible-electronic-skin-allows-humans-sense-magnetic-fields

Reference• http://www.livescience.com/43082-flexible-pressure-sensor-created.html

• http://www.theverge.com/2013/7/9/4508546/electronic-skin-gold-nanoparticles-feels-pressure-temperature-humidty

• http://zh.wikipedia.org/wiki/%E5%A3%93%E9%9B%BB%E6%95%88%E6%87%89

• http://www.nature.com/nmat/journal/v12/n10/full/nmat3711.html?WT.ec_id=NMAT-201310

• http://www.nanowerk.com/spotlight/spotid=33601.php

• http://it.sohu.com/s2011/skin/index.shtml

• http://www.wikid.eu/index.php/E-Skin_%E2%80%93_Touch_sensitive_material

• http://www.elexcon.com/news/133776.html

• http://www.awaker.hk/2252.html

• http://pj.91.com/tech/130726/21593518.html

• http://www.peratech.com/qtc-technology.html