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Self-Powered Sensors

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Chemical Sensors".

Deadline for manuscript submissions: closed (31 May 2017) | Viewed by 22663

Special Issue Editors

Prof. Dr. Magnus Willander

E-Mail Website
Guest Editor
Department of Science and Technology (ITN), Campus Norrköping, Linköping University, SE 60174 Norrköping, Sweden
Interests: materials; synthesis; characterization; material application for energy harvesting; devices for sensing; optical and electrical devices
Special Issues, Collections and Topics in MDPI journals
Dr. Omer Nur

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Guest Editor
Department of Science and Technology (ITN) Campus Norrköping, Linköping University SE 60174 Norrköping, Sweden
Interests: condensed matter physics; materials physics; materials science

Special Issue Information

Dear Colleagues,

The potential gain from the advancements in miniaturization and portability of modern sensor technologies is partly lost due to the powering requirements. Further, in some cases, where sensor systems have to be placed in remote areas, e.g., environmental monitoring or for implanted sensors, as another example, etc., the powering could be a hindrance for achieving long-period sustainable functions of these sensor systems. Self-powered sensors, relying on different harvested energy forms, have become a popular and appealing subject in science and technology. This Special Issue welcomes all papers that deal with powering chemical and/or biosensors, as well as other physical sensors relying on powering from available mechanical, chemical, light, and thermal energy. Both research, as well as review papers, are welcomed. Submission of manuscripts containing new self-powering sensor concepts is encouraged.

Prof. Dr. Magnus Willander
Dr. Omer Nur
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

 

Published Papers (3 papers)

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Research

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3642 KiB  
Article
A Self-Sustained Wireless Multi-Sensor Platform Integrated with Printable Organic Sensors for Indoor Environmental Monitoring
by Chun-Chang Wu, Wen-Yu Chuang, Ching-Da Wu, Yu-Cheng Su, Yung-Yang Huang, Yang-Jing Huang, Sheng-Yu Peng, Shih-An Yu, Chih-Ting Lin and Shey-Shi Lu
Sensors 2017, 17(4), 715; https://doi.org/10.3390/s17040715 - 29 Mar 2017
Cited by 9 | Viewed by 8097
Abstract
A self-sustained multi-sensor platform for indoor environmental monitoring is proposed in this paper. To reduce the cost and power consumption of the sensing platform, in the developed platform, organic materials of PEDOT:PSS and PEDOT:PSS/EB-PANI are used as the sensing films for humidity and [...] Read more.
A self-sustained multi-sensor platform for indoor environmental monitoring is proposed in this paper. To reduce the cost and power consumption of the sensing platform, in the developed platform, organic materials of PEDOT:PSS and PEDOT:PSS/EB-PANI are used as the sensing films for humidity and CO2 detection, respectively. Different from traditional gas sensors, these organic sensing films can operate at room temperature without heating processes or infrared transceivers so that the power consumption of the developed humidity and the CO2 sensors can be as low as 10 μW and 5 μW, respectively. To cooperate with these low-power sensors, a Complementary Metal-Oxide-Semiconductor (CMOS) system-on-chip (SoC) is designed to amplify and to read out multiple sensor signals with low power consumption. The developed SoC includes an analog-front-end interface circuit (AFE), an analog-to-digital convertor (ADC), a digital controller and a power management unit (PMU). Scheduled by the digital controller, the sensing circuits are power gated with a small duty-cycle to reduce the average power consumption to 3.2 μW. The designed PMU converts the power scavenged from a dye sensitized solar cell (DSSC) module into required supply voltages for SoC circuits operation under typical indoor illuminance conditions. To our knowledge, this is the first multiple environmental parameters (Temperature/CO2/Humidity) sensing platform that demonstrates a true self-powering functionality for long-term operations. Full article
(This article belongs to the Special Issue Self-Powered Sensors)
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4786 KiB  
Article
Effect of the Matching Circuit on the Electromechanical Characteristics of Sandwiched Piezoelectric Transducers
by Shuyu Lin and Jie Xu
Sensors 2017, 17(2), 329; https://doi.org/10.3390/s17020329 - 10 Feb 2017
Cited by 42 | Viewed by 7407
Abstract
The input electrical impedance behaves as a capacitive when a piezoelectric transducer is excited near its resonance frequency. In order to increase the energy transmission efficiency, a series or parallel inductor should be used to compensate the capacitive impedance of the piezoelectric transducer. [...] Read more.
The input electrical impedance behaves as a capacitive when a piezoelectric transducer is excited near its resonance frequency. In order to increase the energy transmission efficiency, a series or parallel inductor should be used to compensate the capacitive impedance of the piezoelectric transducer. In this paper, the effect of the series matching inductor on the electromechanical characteristics of the piezoelectric transducer is analyzed. The dependency of the resonance/anti-resonance frequency, the effective electromechanical coupling coefficient, the electrical quality factor and the electro-acoustical efficiency on the matching inductor is obtained. It is shown that apart from compensating the capacitive impedance of the piezoelectric transducer, the series matching inductor can also change the electromechanical characteristics of the piezoelectric transducer. When series matching inductor is increased, the resonance frequency is decreased and the anti-resonance unchanged; the effective electromechanical coupling coefficient is increased. For the electrical quality factor and the electroacoustic efficiency, the dependency on the matching inductor is different when the transducer is operated at the resonance and the anti-resonance frequency. The electromechanical characteristics of the piezoelectric transducer with series matching inductor are measured. It is shown that the theoretically predicted relationship between the electromechanical characteristics and the series matching inductor is in good agreement with the experimental results. Full article
(This article belongs to the Special Issue Self-Powered Sensors)
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Review

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3837 KiB  
Review
Zinc Oxide-Based Self-Powered Potentiometric Chemical Sensors for Biomolecules and Metal Ions
by Muhammad Israr-Qadir, Sadaf Jamil-Rana, Omer Nur and Magnus Willander
Sensors 2017, 17(7), 1645; https://doi.org/10.3390/s17071645 - 19 Jul 2017
Cited by 15 | Viewed by 6169
Abstract
Advances in the miniaturization and portability of the chemical sensing devices have always been hindered by the external power supply problem, which has focused new interest in the fabrication of self-powered sensing devices for disease diagnosis and the monitoring of analytes. This review [...] Read more.
Advances in the miniaturization and portability of the chemical sensing devices have always been hindered by the external power supply problem, which has focused new interest in the fabrication of self-powered sensing devices for disease diagnosis and the monitoring of analytes. This review describes the fabrication of ZnO nanomaterial-based sensors synthesized on different conducting substrates for extracellular detection, and the use of a sharp borosilicate glass capillary (diameter, d = 700 nm) to grow ZnO nanostructures for intracellular detection purposes in individual human and frog cells. The electrocatalytic activity and fast electron transfer properties of the ZnO materials provide the necessary energy to operate as well as a quick sensing device output response, where the role of the nanomorphology utilized for the fabrication of the sensor is crucial for the production of the operational energy. Simplicity, design, cost, sensitivity, selectivity and a quick and stable response are the most important features of a reliable sensor for routine applications. The review details the extra- and intra-cellular applications of the biosensors for the detection and monitoring of different metallic ions present in biological matrices, along with the biomolecules glucose and cholesterol. Full article
(This article belongs to the Special Issue Self-Powered Sensors)
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