Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/10390
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSahan, N.-
dc.contributor.authorFidan, Mehmet-
dc.contributor.authorÇelebi, Cem-
dc.date.accessioned2021-01-24T18:34:29Z-
dc.date.available2021-01-24T18:34:29Z-
dc.date.issued2020-
dc.identifier.issn0947-8396-
dc.identifier.issn1432-0630-
dc.identifier.urihttps://doi.org/10.1007/s00339-020-04120-1-
dc.identifier.urihttps://hdl.handle.net/11147/10390-
dc.description.abstractThe impact of atmospheric adsorbates on the spectral response and response speed of p-type graphene/n-type Silicon (p-Gr/n-Si) based Schottky barrier photodetectors are investigated. Wavelength resolved photocurrent and transient photocurrent spectroscopy measurements conducted under high-vacuum conditions revealed that the atmospheric adsorbates such as O-2 and H2O stuck on graphene electrode lead to hole doping in graphene and therefore shift its Fermi level towards higher energy states below its Dirac point. Such a shift in graphene's Fermi level due to adsorbates increases the zero-bias Schottky barrier height of the p-Gr/n-Si heterojunction from 0.71 to 0.78 eV. Adsorbate induced increment in the barrier height promotes the separation of photo-generated charge carriers at the depletion region and leads to an improvement in the maximum spectral response (e.g., from 0.39 to 0.46 AW(-1)) and response speed of the p-Gr/n-Si photodetector in the near-infrared region. The experimentally obtained results are expected to give an insight into the adsorbate related variations in the rectification and photo-response characters of the heterojunctions of graphene and other 2D materials with different semiconductors.en_US
dc.language.isoenen_US
dc.publisherSpringer Verlagen_US
dc.relation.ispartofApplied Physics A-Materials Science and Processingen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGrapheneen_US
dc.subjectAdsorbatesen_US
dc.subjectSchottky barrieren_US
dc.subjectSpectral responseen_US
dc.titleAdsorbate-Induced Enhancement of the Spectral Response in Graphene/Silicon-based Schottky Barrier Photodetectorsen_US
dc.typeArticleen_US
dc.institutionauthorSahan, N.-
dc.institutionauthorFidan, Mehmet-
dc.institutionauthorÇelebi, Cem-
dc.departmentİzmir Institute of Technology. Physicsen_US
dc.identifier.volume126en_US
dc.identifier.issue12en_US
dc.identifier.wosWOS:000594448100001en_US
dc.identifier.scopus2-s2.0-85096221967en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1007/s00339-020-04120-1-
dc.relation.doi10.1007/s00339-020-04120-1en_US
dc.coverage.doi10.1007/s00339-020-04120-1en_US
dc.identifier.wosqualityQ2-
dc.identifier.scopusqualityQ2-
item.fulltextNo Fulltext-
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.grantfulltextnone-
crisitem.author.dept04.05. Department of Pyhsics-
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
Show simple item record



CORE Recommender

SCOPUSTM   
Citations

6
checked on Dec 13, 2024

WEB OF SCIENCETM
Citations

6
checked on Dec 7, 2024

Page view(s)

7,024
checked on Dec 9, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.