dc.contributor.author | Pepe, Yasemin | |
dc.contributor.author | Karatay, Ahmet | |
dc.contributor.author | Donar, Yusuf Osman | |
dc.contributor.author | Bilge, Selva | |
dc.contributor.author | Yıldız, Elif Akhüseyin | |
dc.contributor.author | Yüksek, Mustafa | |
dc.contributor.author | Sinağ, Ali | |
dc.contributor.author | Elmalı, Ayhan | |
dc.date.accessioned | 2020-11-25T11:17:45Z | |
dc.date.available | 2020-11-25T11:17:45Z | |
dc.date.issued | 2020 | en_US |
dc.identifier.citation | Pepe, Y., Karatay, A., Donar, Y.O., Bilge, S., Yildiz, E.A., Yuksek, M., Sınağ, A., Elmali, A. (2020). Effect of Cr/Sb doping and annealing on nonlinear absorption coefficients of SnO2 /PMMA nanocomposite films. Materials Chemistry and Physics, 255, art. no. 123596.
https://doi.org/10.1016/j.matchemphys.2020.123596 | en_US |
dc.identifier.uri | https://doi.org/10.1016/j.matchemphys.2020.123596 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12508/1396 | |
dc.description.abstract | Cr and Sb doped SnO2 nanoparticles were synthesized by hydrothermal method. The structural measurements of as-grown nanoparticles exhibited that the incorporation of the 3% wt. Cr and Sb dopant into the SnO2 crystal structure led to increasing crystallite size but further doping (7% wt. and 10% wt.) caused to decreasing crystallite size. On the other hand, the annealing processes caused to increasing of the crystallite size. SnO2/PMMA, SnO2:Cr/PMMA and SnO2:Sb/PMMA nanocomposite films were deposited on fused silica substrate by using spin coating method. The as-deposited nanocomposite films have wide band gap energy and the band gap energies decreased after annealing process due to the increase of the particle sizes. Annealed nanocomposite films have strong transmittance in the ultraviolet and visible region. In order to investigate the effect of doping and annealing on nonlinear absorption properties of the films, open aperture Z-scan experiments were performed. To derive the transmission in open aperture Z-scan data, a theoretical model incorporating one photon, two photon, and free carrier absorptions and their saturations were considered. Nonlinear absorption coefficients and saturation intensity thresholds were extracted from the fitting of the experimental results. Nonlinear absorption coefficients and saturation intensity thresholds increased with increasing of the doping concentration because of the increasing of the defect states in the band gaps and decreased due to the decreasing of the defect state density with annealing. Strong optical limiting behavior observed for %10 Cr and %10 Sb doped SnO2 nanocomposite films. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.isversionof | 10.1016/j.matchemphys.2020.123596 | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Nonlinear absorption | en_US |
dc.subject | Z-scan | en_US |
dc.subject | Hydrothermal method | en_US |
dc.subject | Metal oxide nanoparticles | en_US |
dc.subject.classification | Materials Science | |
dc.subject.classification | Multidisciplinary | |
dc.subject.classification | Tin Dioxide | Spray Pyrolysis | Hall Mobility | |
dc.subject.other | Conducting thin-films | |
dc.subject.other | Optical-properties | |
dc.subject.other | Band-gap | |
dc.subject.other | Structural-properties | |
dc.subject.other | 2-photon absorption | |
dc.subject.other | SnO2 nanoparticles | |
dc.subject.other | Charge separation | |
dc.subject.other | Tin oxide | |
dc.subject.other | Semiconductor | |
dc.subject.other | Temperature | |
dc.subject.other | Annealing | |
dc.subject.other | Crystal structure | |
dc.subject.other | Crystallite size | |
dc.subject.other | Defects | |
dc.subject.other | Energy gap | |
dc.subject.other | Fused silica | |
dc.subject.other | Nanocomposites | |
dc.subject.other | Nanoparticles | |
dc.subject.other | Photons | |
dc.subject.other | Semiconductor doping | |
dc.subject.other | Synthesis (chemical) | |
dc.subject.other | Free carrier absorption | |
dc.subject.other | Fused silica substrates | |
dc.subject.other | Hydrothermal methods | |
dc.subject.other | Nonlinear absorption coefficien | |
dc.subject.other | Nonlinear absorption properties | |
dc.subject.other | Optical limiting behavior | |
dc.subject.other | Structural measurements | |
dc.subject.other | Theoretical modeling | |
dc.subject.other | Nanocomposite films | |
dc.title | Effect of Cr/Sb doping and annealing on nonlinear absorption coefficients of SnO2 /PMMA nanocomposite films | en_US |
dc.type | article | en_US |
dc.relation.journal | Materials Chemistry and Physics | en_US |
dc.contributor.department | Mühendislik ve Doğa Bilimleri Fakültesi -- Elektrik-Elektronik Mühendisliği Bölümü | en_US |
dc.identifier.volume | 255 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.contributor.isteauthor | Yüksek, Mustafa | |
dc.relation.index | Web of Science - Scopus | en_US |
dc.relation.index | Web of Science Core Collection - Science Citation Index Expanded | |