A miniaturised autonomous sensor based on nanowire materials platform: the SiNAPS mote

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dc.contributor.authorKoshro Pour, Naser
dc.contributor.authorKayal, M.
dc.contributor.authorJia, G.
dc.contributor.authorEisenhawer, B.
dc.contributor.authorFalk, F.
dc.contributor.authorNightingale, Adrian M.
dc.contributor.authorDeMello, John C.
dc.contributor.authorGeorgiev, Yordan M.
dc.contributor.authorPetkov, Nikolay
dc.contributor.authorHolmes, Justin D.
dc.contributor.authorNolan, Michael
dc.contributor.authorFagas, Gíorgos
dc.contributor.funderEuropean Commissionen
dc.contributor.funderSeventh Framework Programme
dc.date.accessioned2016-04-20T13:59:05Z
dc.date.available2016-04-20T13:59:05Z
dc.date.issued2013-05-17
dc.date.updated2013-08-20T17:50:02Z
dc.description.abstractA micro-power energy harvesting system based on core(crystalline Si)-shell(amorphous Si) nanowire solar cells together with a nanowire-modified CMOS sensing platform have been developed to be used in a dust-sized autonomous chemical sensor node. The mote (SiNAPS) is augmented by low-power electronics for power management and sensor interfacing, on a chip area of 0.25mm2. Direct charging of the target battery (e.g., NiMH microbattery) is achieved with end-to-end efficiencies up to 90% at AM1.5 illumination and 80% under 100 times reduced intensity. This requires matching the voltages of the photovoltaic module and the battery circumventing maximum power point tracking. Single solar cells show efficiencies up to 10% under AM1.5 illumination and open circuit voltages, Voc, of 450-500mV. To match the battery’s voltage the miniaturised solar cells (~1mm2 area) are connected in series via wire bonding. The chemical sensor platform (mm2 area) is set up to detect hydrogen gas concentration in the low ppm range and over a broad temperature range using a low power sensing interface circuit. Using Telran TZ1053 radio to send one sample measurement of both temperature and H2 concentration every 15 seconds, the average and active power consumption for the SiNAPS mote are less than 350nW and 2.1 μW respectively. Low-power miniaturised chemical sensors of liquid analytes through microfluidic delivery to silicon nanowires are also presented. These components demonstrate the potential of further miniaturization and application of sensor nodes beyond the typical physical sensors, and are enabled by the nanowire materials platform.en
dc.description.statusPeer revieweden
dc.description.urihttp://spie.org/Publications/Proceedings/Paper/10.1117/12.2017520en
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPour, N. K., Kayal, M., Jia, G., Eisenhawer, B., Falk, F., Nightingale, A., DeMello, J. C., Georgiev, Y. M., Petkov, N., Holmes, J. D., Nolan, M. and Fagas, G. (2013) A miniaturised autonomous sensor based on nanowire materials platform: the SiNAPS mote. Proceedings of SPIE 8763, Smart Sensors, Actuators, and MEMS VI, Grenoble, France, 24 April. doi:10.1117/12.2017520en
dc.identifier.doi10.1117/12.2017520
dc.identifier.endpage87631Q-14en
dc.identifier.issn0277-786X
dc.identifier.journaltitleProceedings of SPIEen
dc.identifier.startpage87631Qen
dc.identifier.urihttps://hdl.handle.net/10468/2467
dc.identifier.volume8763en
dc.language.isoenen
dc.publisherSociety of Photo-optical Instrumentation Engineers (SPIE)en
dc.relation.ispartofSPIE 8763, Smart Sensors, Actuators, and MEMS VI, Grenoble, France, 24 April, 2013
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP1::ICT/257856/EU/Semiconducting Nanowire Platform for Autonomous Sensors/SINAPS
dc.relation.urihttp://spie.org/
dc.rights© Copyright 2013 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. http://dx.doi.org/10.1117/12.2017520en
dc.subjectMoteen
dc.subjectSilicon nanowiresen
dc.subjectChemical sensorsen
dc.subjectMicrofluidicsen
dc.subjectEnergy harvestingen
dc.subjectElectronics designen
dc.subjectLow poweren
dc.subjectHeterojunction solar cellsen
dc.subjectElectron beam resisten
dc.subjectHydrogen silsesquioxaneen
dc.subjectSolar cellsen
dc.titleA miniaturised autonomous sensor based on nanowire materials platform: the SiNAPS moteen
dc.typeConference itemen
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