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A two terminal optical signal and image processing p-i-n/p-i-n image and colour sensor

2005-09-23Journal article Restricted access
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dc.contributor.authorVieira, Manuela
dc.contributor.authorFernandes, Miguel
dc.contributor.authorLouro, Paula
dc.contributor.authorFantoni, Alessandro
dc.contributor.authorLavareda, G.
dc.contributor.authorCarvalho, C. N. de
dc.contributor.authorVygranenko, Yuri
dc.date.accessioned2012-03-22T15:03:56Z
dc.date.available2012-03-22T15:03:56Z
dc.date.issued2005-09-23
dc.description.abstractA two terminal optically addressed image processing device based on two stacked sensing/switching p-i-n a-SiC:H diodes is presented. The charge packets are injected optically into the p-i-n sensing photodiode and confined at the illuminated regions changing locally the electrical field profile across the p-i-n switching diode. A red scanner is used for charge readout. The various design parameters and addressing architecture trade-offs are discussed. The influence on the transfer functions of an a-SiC:H sensing absorber optimized for red transmittance and blue collection or of a floating anode in between is analysed. Results show that the thin a-SiC:H sensing absorber confines the readout to the switching diode and filters the light allowing full colour detection at two appropriated voltages. When the floating anode is used the spectral response broadens, allowing B&W image recognition with improved light-to-dark sensitivity. A physical model supports the image and colour recognition process.por
dc.identifier.citationVIEIRA, Manuela; [et al] – A two terminal optical signal and image processing p-i-n/p-i-n image and colour sensor. Sensors and Actuators A: Physical. ISSN 0924-4247. Vol. 123-124, (2005), pp. 331-336.por
dc.identifier.doi10.1016/j.sna.2005.03.051
dc.identifier.issn0924-4247
dc.identifier.urihttp://hdl.handle.net/10400.21/1335
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevier Science SApor
dc.subjectOptical signal and image processing devicepor
dc.subjectReal-time readoutpor
dc.subjectMulti-layered structures amorphous silicon colour detectorspor
dc.titleA two terminal optical signal and image processing p-i-n/p-i-n image and colour sensorpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage336por
oaire.citation.startPage331por
oaire.citation.titleSensors and Actuators A: Physicalpor
oaire.citation.volume123-124
person.familyNameVieira
person.familyNameFernandes
person.familyNameLouro
person.familyNameFantoni
person.familyNameVygranenko
person.givenNameManuela
person.givenNameMiguel
person.givenNamePaula
person.givenNameAlessandro
person.givenNameYuri
person.identifier10792
person.identifier499161
person.identifier.ciencia-id9516-E25E-BB8E
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person.identifier.ciencia-idE511-8C08-E606
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person.identifier.ciencia-id121C-05B4-3897
person.identifier.orcid0000-0002-1150-9895
person.identifier.orcid0000-0002-0765-474X
person.identifier.orcid0000-0002-4167-2052
person.identifier.orcid0000-0002-9938-0351
person.identifier.orcid0000-0002-1819-5606
person.identifier.ridV-7860-2017
person.identifier.ridU-8346-2017
person.identifier.ridK-1105-2016
person.identifier.scopus-author-id7202140173
person.identifier.scopus-author-id24450183800
person.identifier.scopus-author-id8845716400
person.identifier.scopus-author-id7006535604
person.identifier.scopus-author-id6701808217
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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