Lanthanum(III)hydroxide Nanoparticles and Polyethyleneimine-Functionalized Graphene Quantum Dot Nanocomposites in Photosensitive Silicon Heterojunctions

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dc.authoridYıldız, Mustafa / 0000-0001-5833-7499
dc.contributor.authorAnter, Aslıhan
dc.contributor.authorOrhan, Elif
dc.contributor.authorUlusoy, Murat
dc.contributor.authorPolat, Barış
dc.contributor.authorYıldız, Mustafa
dc.contributor.authorKumar, Arun
dc.contributor.authorDi Bartolomeo, Antonio
dc.date.accessioned2025-01-27T20:43:44Z
dc.date.available2025-01-27T20:43:44Z
dc.date.issued2024
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractLanthanides are largely used in optoelectronics as dopants to enhance the physical and optical properties of semiconducting devices. In this study, lanthanum(III)hydroxide nanoparticles (La(OH)(3)NPs) are used as a dopant of polyethylenimine (PEI)-functionalized nitrogen (N)-doped graphene quantum dots ( (PEI-N)GQDs). The La(OH)(3) NPs-doped (PEI-N)GQDs nanocomposites are prepared from La(NO)(3) in a single step by a green novel method and are characterized by Fourier-transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV-vis), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). Deposited over an n-type Si wafer, the La(OH)(3) NPs-doped (PEI-N)GQDs nanocomposites form Schottky diodes. The I-V characteristics and the photoresponse of the diodes are investigated as a function of the illumination intensity in the range 0-110 mW cm(-2) and at room temperature. It is found that the rectification ratio and ideality factor of the diode decrease, while the Schottky barrier and series resistance increase with the enhancing illuminations. As a photodetector, the La(OH)(3) NPs-doped (PEI-N)GQDs/n-Si heterojunction exhibits an appreciable responsivity of 3.9 x 10(-3) AW(-1) under 22 mW cm(-2) at -0.3 V bias and a maximum detectivity of 8.7 x 10(8) Jones under 22 mW cm(-2) at -0.5 V. This study introduces the green synthesis and presents the structural, electrical, and optoelectronic properties of La(OH)(3) NPs-doped (PEI-N)GQDs, demonstrating that these nanocomposites can be promising for optoelectronic applications.
dc.description.sponsorshipEuropean Commission [FGA-2022-8252]; Gazi University Scientific Research Council (BAP); European Union [1062/2021]; Italian Ministerial Decree [ORSA235199]; University of Salerno
dc.description.sponsorshipE.O. is grateful to the Gazi University Scientific Research Council (BAP) for the financial support of this research under project FGA-2022-8252. A.D.B. and A.K. acknowledge the financial support of the European Union's REACT-EU PON Research and Innovation 2014-2020 project, Italian Ministerial Decree 1062/2021, and the University of Salerno, grant number ORSA235199.
dc.identifier.doi10.1021/acsami.4c02102
dc.identifier.endpage22432
dc.identifier.issn1944-8244
dc.identifier.issn1944-8252
dc.identifier.issue17
dc.identifier.pmid38634639
dc.identifier.scopus2-s2.0-85191384941
dc.identifier.scopusqualityQ1
dc.identifier.startpage22421
dc.identifier.urihttps://doi.org/10.1021/acsami.4c02102
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24350
dc.identifier.volume16
dc.identifier.wosWOS:001242268800001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.relation.ispartofAcs Applied Materials & Interfaces
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectrare earth elements
dc.subjectlanthanum(III) hydroxide doping
dc.subjectgraphene quantum dots
dc.subjectgreen method
dc.subjectnanocompositediode
dc.subjectphotosensitivity
dc.titleLanthanum(III)hydroxide Nanoparticles and Polyethyleneimine-Functionalized Graphene Quantum Dot Nanocomposites in Photosensitive Silicon Heterojunctions
dc.typeArticle

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