Circuit-free, optoelectronic sensing of electrodermal activities based on photon recycling of a micro-LED
Conventional epidermal electronics integrate multiple power harvesting, signal amplification and data transmission components for wireless biophysical and biochemical signal detection. This paper reports the real-time electrodermal activities can be optically captured using a microscale light-emitti...
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Cold Spring Harbor
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06.07.2020
Cold Spring Harbor Laboratory |
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| Abstract | Conventional epidermal electronics integrate multiple power harvesting, signal amplification and data transmission components for wireless biophysical and biochemical signal detection. This paper reports the real-time electrodermal activities can be optically captured using a microscale light-emitting diode (micro-LED), eliminating the need for complicated sensing circuit. Owing to its strong photon-recycling effects, the micro-LED's photoluminescence (PL) emission exhibits a superlinear dependence on the external resistance. Taking advantage of this unique mechanism, the galvanic skin response (GSR) of a human subject is optically monitored, and it demonstrates that such an optoelectronic sensing technique outperforms a traditional tethered, electrically based GSR sensing circuit, in terms of its footprint, accuracy and sensitivity. This presented optoelectronic sensing approach could establish promising routes to advanced biological sensors. Competing Interest Statement The authors have declared no competing interest. |
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| AbstractList | Conventional epidermal electronics integrate multiple power harvesting, signal amplification and data transmission components for wireless biophysical and biochemical signal detection. This paper reports the real-time electrodermal activities can be optically captured using a microscale light-emitting diode (micro-LED), eliminating the need for complicated sensing circuit. Owing to its strong photon-recycling effects, the micro-LED's photoluminescence (PL) emission exhibits a superlinear dependence on the external resistance. Taking advantage of this unique mechanism, the galvanic skin response (GSR) of a human subject is optically monitored, and it demonstrates that such an optoelectronic sensing technique outperforms a traditional tethered, electrically based GSR sensing circuit, in terms of its footprint, accuracy and sensitivity. This presented optoelectronic sensing approach could establish promising routes to advanced biological sensors. Competing Interest Statement The authors have declared no competing interest. Conventional epidermal electronics integrate multiple power harvesting, signal amplification and data transmission components for wireless biophysical and biochemical signal detection. This paper reports the real-time electrodermal activities can be optically captured using a microscale light-emitting diode (micro-LED), eliminating the need for complicated sensing circuit. Owing to its strong photon-recycling effects, the micro-LED’s photoluminescence (PL) emission exhibits a superlinear dependence on the external resistance. Taking advantage of this unique mechanism, the galvanic skin response (GSR) of a human subject is optically monitored, and it demonstrates that such an optoelectronic sensing technique outperforms a traditional tethered, electrically based GSR sensing circuit, in terms of its footprint, accuracy and sensitivity. This presented optoelectronic sensing approach could establish promising routes to advanced biological sensors. |
| Author | Xing Sheng |
| Author_xml | – sequence: 1 givenname: He surname: Ding fullname: Ding, He organization: Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology – sequence: 2 givenname: Guoqing surname: Lv fullname: Lv, Guoqing organization: Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology – sequence: 3 givenname: Zhao surname: Shi fullname: Shi, Zhao organization: Department of Electronic Engineering and Beijing National Research Center for Information Science and Technology, Tsinghua University – sequence: 4 givenname: Dali surname: Cheng fullname: Cheng, Dali organization: Department of Electronic Engineering and Beijing National Research Center for Information Science and Technology, Tsinghua University – sequence: 5 givenname: Yunxiang surname: Huang fullname: Huang, Yunxiang organization: School of Materials Science and Engineering, Tsinghua University – sequence: 6 givenname: Lan surname: Yin fullname: Yin, Lan organization: School of Materials Science and Engineering, Tsinghua University – sequence: 7 givenname: Jian surname: Yang fullname: Yang, Jian organization: Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology – sequence: 8 givenname: YongTian surname: Wang fullname: Wang, YongTian organization: Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology – sequence: 9 givenname: Xing orcidid: 0000-0002-8744-1700 surname: Sheng fullname: Sheng, Xing email: xingsheng@tsinghua.edu.cn organization: Department of Electronic Engineering and Beijing National Research Center for Information Science and Technology, Tsinghua University |
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| DOI | 10.1101/2020.07.05.188391 |
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| Keywords | micro-LEDs photon-recycling galvanic skin response optoelectronic sensing |
| Language | English |
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| Title | Circuit-free, optoelectronic sensing of electrodermal activities based on photon recycling of a micro-LED |
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