Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor Design

This work presents an analytical model for the dependence of the open-circuit voltage of CMOS diodes operating in the photovoltaic (PV) regime versus illuminance and temperature. The model is targeted for image sensor design and provides insights into key behavioral features relevant to high dynamic...

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Detalles Bibliográficos
Autores: Fernández-Peramo, Pablo, Leñero-Bardallo, J. A., Rodríguez-Vázquez, Ángel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2026
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/419372
Acceso en línea:http://hdl.handle.net/10261/419372
https://api.elsevier.com/content/abstract/scopus_id/105023574298
Access Level:acceso abierto
Palabra clave:Diode
Event-based
High dynamic range (HDR)
Image sensor
Photovoltaic (PV)
Solar cell
Vision sensor
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spelling Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor DesignFernández-Peramo, PabloLeñero-Bardallo, J. A.Rodríguez-Vázquez, ÁngelDiodeEvent-basedHigh dynamic range (HDR)Image sensorPhotovoltaic (PV)Solar cellVision sensorThis work presents an analytical model for the dependence of the open-circuit voltage of CMOS diodes operating in the photovoltaic (PV) regime versus illuminance and temperature. The model is targeted for image sensor design and provides insights into key behavioral features relevant to high dynamic range (HDR) image acquisition, including the steady-state response, sensitivity, bandwidth, noise, and signal-to-noise ratio (SNR) under varying illuminance and temperature conditions. The article also includes experimental data to confirm the adequacy of the proposed model in predicting the behavior of practical photodiodes. These findings highlight the suitability of a PV diode as the photoreceptor stage for HDR imaging applications, offering improved compactness and noise performance over conventional logarithmic photoreceptors while operating without static power consumption as a result of its self-biased nature.This work was supported by the Project ELIXIR (PID2023-147244OB-I00) funded by MICIU/AEI and by FEDER, and the Project USECHIP (TSI-069100-2023-001) funded by the Secretary of State for Telecommunications and Digital Infrastructure, Ministry for Digital Transformation and Civil Service and by the European Union–NextGenerationEU/PRTR. The review of this article was arranged by Editor K. Stefanov.Peer reviewedInstitute of Electrical and Electronics EngineersAgencia Estatal de Investigación (España)Ministerio de Ciencia, Innovación y Universidades (España)Ministerio para la Transformación Digital y de la Función Pública (España)European CommissionFernández-Peramo, Pablo [0000-0001-9507-3971]Leñero-Bardallo, J. A. [0000-0002-1741-9743]Rodríguez-Vázquez, Ángel [0000-0002-1006-5241]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262026info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/419372https://api.elsevier.com/content/abstract/scopus_id/105023574298reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-147244OB-I00info:eu-repo/grantAgreement/AEI//TSI-069100-2023-001https://doi.org/10.1109/TED.2025.3632828Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4193722026-05-22T06:33:51Z
dc.title.none.fl_str_mv Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor Design
title Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor Design
spellingShingle Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor Design
Fernández-Peramo, Pablo
Diode
Event-based
High dynamic range (HDR)
Image sensor
Photovoltaic (PV)
Solar cell
Vision sensor
title_short Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor Design
title_full Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor Design
title_fullStr Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor Design
title_full_unstemmed Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor Design
title_sort Modeling the Photovoltaic Diode Region for High Dynamic Range Image Sensor Design
dc.creator.none.fl_str_mv Fernández-Peramo, Pablo
Leñero-Bardallo, J. A.
Rodríguez-Vázquez, Ángel
author Fernández-Peramo, Pablo
author_facet Fernández-Peramo, Pablo
Leñero-Bardallo, J. A.
Rodríguez-Vázquez, Ángel
author_role author
author2 Leñero-Bardallo, J. A.
Rodríguez-Vázquez, Ángel
author2_role author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Ministerio de Ciencia, Innovación y Universidades (España)
Ministerio para la Transformación Digital y de la Función Pública (España)
European Commission
Fernández-Peramo, Pablo [0000-0001-9507-3971]
Leñero-Bardallo, J. A. [0000-0002-1741-9743]
Rodríguez-Vázquez, Ángel [0000-0002-1006-5241]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Diode
Event-based
High dynamic range (HDR)
Image sensor
Photovoltaic (PV)
Solar cell
Vision sensor
topic Diode
Event-based
High dynamic range (HDR)
Image sensor
Photovoltaic (PV)
Solar cell
Vision sensor
description This work presents an analytical model for the dependence of the open-circuit voltage of CMOS diodes operating in the photovoltaic (PV) regime versus illuminance and temperature. The model is targeted for image sensor design and provides insights into key behavioral features relevant to high dynamic range (HDR) image acquisition, including the steady-state response, sensitivity, bandwidth, noise, and signal-to-noise ratio (SNR) under varying illuminance and temperature conditions. The article also includes experimental data to confirm the adequacy of the proposed model in predicting the behavior of practical photodiodes. These findings highlight the suitability of a PV diode as the photoreceptor stage for HDR imaging applications, offering improved compactness and noise performance over conventional logarithmic photoreceptors while operating without static power consumption as a result of its self-biased nature.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/419372
https://api.elsevier.com/content/abstract/scopus_id/105023574298
url http://hdl.handle.net/10261/419372
https://api.elsevier.com/content/abstract/scopus_id/105023574298
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-147244OB-I00
info:eu-repo/grantAgreement/AEI//TSI-069100-2023-001
https://doi.org/10.1109/TED.2025.3632828

dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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