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Image and color recognition using amorphous silicon p-i-n photodiodes

2005-09-23Journal article Open access
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dc.contributor.authorLouro, Paula
dc.contributor.authorVieira, Manuela
dc.contributor.authorFantoni, Alessandro
dc.contributor.authorFernandes, Miguel
dc.contributor.authorCarvalho, C. N.
dc.contributor.authorLavareda, G.
dc.date.accessioned2012-03-23T10:40:44Z
dc.date.available2012-03-23T10:40:44Z
dc.date.issued2005-09-23
dc.description.abstractLarge area hydrogenated amorphous silicon single and stacked p-i-n structures with low conductivity doped layers are proposed as monochrome and color image sensors. The layers of the structures are based on amorphous silicon alloys (a-Si(x)C(1-x):H). The current-voltage characteristics and the spectral sensitivity under different bias conditions are analyzed. The output characteristics are evaluated under different read-out voltages and scanner wavelengths. To extract information on image shape, intensity and color, a modulated light beam scans the sensor active area at three appropriate bias voltages and the photoresponse in each scanning position ("sub-pixel") is recorded. The investigation of the sensor output under different scanner wavelengths and varying electrical bias reveals that the response can be tuned, thus enabling color separation. The operation of the sensor is exemplified and supported by a numerical simulation.por
dc.identifier.citationLOURO, Paula; [et al] – Image and color recognition using amorphous silicon p-i-n photodiodes. Sensors and Actuators A: Physical. ISSN 0924-4247. Vol. 123-124 (2005), pp. 326-330.por
dc.identifier.doi10.1016/j.sna.2005.03.050
dc.identifier.issn0924-4247
dc.identifier.urihttp://hdl.handle.net/10400.21/1342
dc.language.isoengpor
dc.publisherElsevier Science SApor
dc.subjectPhotodiodepor
dc.subjectImage sensorpor
dc.subjectColor detectionpor
dc.titleImage and color recognition using amorphous silicon p-i-n photodiodespor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceLausannepor
oaire.citation.endPage330por
oaire.citation.startPage326por
oaire.citation.titleSensors and Actuators A-Physicalpor
oaire.citation.volume123-124
person.familyNameLouro
person.familyNameVieira
person.familyNameFantoni
person.familyNameFernandes
person.givenNamePaula
person.givenNameManuela
person.givenNameAlessandro
person.givenNameMiguel
person.identifier499161
person.identifier10792
person.identifier.ciencia-idE511-8C08-E606
person.identifier.ciencia-id9516-E25E-BB8E
person.identifier.ciencia-id241E-E87C-552F
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person.identifier.orcid0000-0002-4167-2052
person.identifier.orcid0000-0002-1150-9895
person.identifier.orcid0000-0002-9938-0351
person.identifier.orcid0000-0002-0765-474X
person.identifier.ridU-8346-2017
person.identifier.ridV-7860-2017
person.identifier.ridK-1105-2016
person.identifier.scopus-author-id8845716400
person.identifier.scopus-author-id7202140173
person.identifier.scopus-author-id7006535604
person.identifier.scopus-author-id24450183800
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
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