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https://hdl.handle.net/11147/13372
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DC Field | Value | Language |
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dc.contributor.author | Yanılmaz, Alper | - |
dc.contributor.author | Ünverdi, Özhan | - |
dc.contributor.author | Çelebi, Cem | - |
dc.date.accessioned | 2023-04-19T12:39:41Z | - |
dc.date.available | 2023-04-19T12:39:41Z | - |
dc.date.issued | 2023 | - |
dc.identifier.issn | 0924-4247 | - |
dc.identifier.uri | https://doi.org/10.1016/j.sna.2023.114336 | - |
dc.identifier.uri | https://hdl.handle.net/11147/13372 | - |
dc.description.abstract | One of the key limitations for the device performance of the silicon (Si) based photodetector arrays is the optical crosstalk effect encountered between photoactive elements as well. The scope of this work is to reduce optical crosstalk and thus increasing the device performances with graphene and Si integration. This paper presents the design, fabrication process, and performance evaluation of self-powered individual Graphene/Silicon on Insulator (GSOI) based Schottky barrier photodiode array (PDA) devices. A 4-element GSOI Schottky barrier PDA with separate graphene electrodes is fabricated to examine possible optical crosstalk encountered between each diode in the array structure. Here, monolayer graphene is utilized as hole collecting separate electrode on individually arrayed n-type Si on SOI substrate by photolithography technique. Each diode in the array exhibited a clear rectifying Schottky character. Photoresponse characterizations revealed that all diodes had excellent device performance even in self-powered mode in terms of an Ilight/Idark ratio up to 104, a responsivity of ∼0.12 A/W, a specific detectivity of around 1.6 × 1012 Jones, and a response speed of ∼1.32 μs at 660 nm wavelength. As revealed by optical crosstalk measurement, the device with pixel pitch of 1.5 mm had a total crosstalk of about 0.10% (−60 dB) per array. These results showed that the optical crosstalk between neighboring n-Si elements can be greatly minimized when graphene is used as separated electrode on arrayed Si on SOI substrate. Our study is expected give an insight into the performance characteristics of GSOI PDA devices which have great potential to be used in many technological applications such as multi-wavelength light measurement, level metering, high-speed photometry and position/motion detection. © 2023 Elsevier B.V. | en_US |
dc.description.sponsorship | The authors would like to thank the researchers in Center for Materials Research of İzmir Institute of Technology (İYTE MAM) and Ermaksan Optoelectronic R&D Center in Turkey for their support in device fabrication processes. This work is supported within the scope of the scientific research project as a part of the Project No. BAP113 which was accepted by the Yaşar University Project Evaluation Commission (PEC). | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.ispartof | Sensors and Actuators, A: Physical | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Graphene | en_US |
dc.subject | Optoelectronic devices | en_US |
dc.subject | Photodiode arrays | en_US |
dc.subject | Schottky junction | en_US |
dc.subject | Silicon-on-insulator | en_US |
dc.subject | Photodetectors | en_US |
dc.title | Self-Powered Photodetector Array Based on Individual Graphene Electrode and Silicon-On Integration | en_US |
dc.type | Article | en_US |
dc.institutionauthor | Yanılmaz, Alper | - |
dc.institutionauthor | Çelebi, Cem | - |
dc.department | İzmir Institute of Technology. Physics | en_US |
dc.identifier.volume | 355 | en_US |
dc.identifier.wos | WOS:001048677900001 | en_US |
dc.identifier.scopus | 2-s2.0-85151258361 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.identifier.doi | 10.1016/j.sna.2023.114336 | - |
dc.authorscopusid | 57190169202 | - |
dc.authorscopusid | 26434008100 | - |
dc.authorscopusid | 22940196500 | - |
dc.identifier.wosquality | Q1 | - |
dc.identifier.scopusquality | Q1 | - |
item.fulltext | With Fulltext | - |
item.openairetype | Article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
crisitem.author.dept | 04.05. Department of Pyhsics | - |
Appears in Collections: | Physics / Fizik Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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1-s2.0-S0924424723001851-main.pdf | 3.75 MB | Adobe PDF | View/Open |
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