Electrical, Optical and Photoconductive Properties of Poly(dibenzo-18

dc.contributor.author Qasrawi, AF
dc.contributor.author Cihaner, A
dc.contributor.author Önal, AM
dc.contributor.other Department of Electrical & Electronics Engineering
dc.contributor.other Chemical Engineering
dc.date.accessioned 2024-07-05T15:08:37Z
dc.date.available 2024-07-05T15:08:37Z
dc.date.issued 2004
dc.description Qasrawi, Atef Fayez/0000-0001-8193-6975; Onal, ahmet muhtar/0000-0003-0644-7180; en_US
dc.description.abstract To investigate the energy levels, absorption bands, band gap, dominant transport mechanisms, recombination mechanisms and the free carrier life time behavior of poly-dibenzo-18-crown-6, poly-DB18C6, films, the dark electrical conductivity in the temperature range of 200-550 K, the absorbance and photocurrent spectra, the photocurrent -illumination intensity and time dependence at 300 K were studied. The dark electrical conductivity measurements revealed the existence of three energy levels located at 0.93, 0.32 and 0.76 eV below the tails of the conduction band. The main transport mechanism in the dark was found to be due to the thermal excitation of charge carriers and the variable range hopping above and below 260 K, respectively. The photocurrent and absorbance spectra reflect a band gap of 3.9 eV. The photocurrent -illumination intensity dependence reflects the sublinear, linear and supralinear characters indicating the decrease, remaining constant and increase in the free electron life time that in turn show the bimolecular, strong and very strong recombination characters at the surface under the application of low, moderate and high illumination intensity, respectively. A response time of 25.6 s was calculated from the decay Of I-ph-time dependence. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. en_US
dc.identifier.doi 10.1002/crat.200310149
dc.identifier.issn 0232-1300
dc.identifier.scopus 2-s2.0-1242329794
dc.identifier.uri https://doi.org/10.1002/crat.200310149
dc.identifier.uri https://hdl.handle.net/20.500.14411/1066
dc.language.iso en en_US
dc.publisher Wiley-v C H verlag Gmbh en_US
dc.rights info:eu-repo/semantics/closedAccess en_US
dc.subject polymers en_US
dc.subject thermal en_US
dc.subject hopping en_US
dc.subject conductivity en_US
dc.subject band gap en_US
dc.subject bimolecular en_US
dc.subject response time en_US
dc.title Electrical, Optical and Photoconductive Properties of Poly(dibenzo-18 en_US
dc.type Article en_US
dspace.entity.type Publication
gdc.author.id Qasrawi, Atef Fayez/0000-0001-8193-6975
gdc.author.id Onal, ahmet muhtar/0000-0003-0644-7180
gdc.author.institutional Qasrawı, Atef Fayez Hasan
gdc.author.institutional Cihaner, Atilla
gdc.author.scopusid 6603962677
gdc.author.scopusid 55925768200
gdc.author.scopusid 7004825485
gdc.author.wosid Qasrawi, Atef Fayez/R-4409-2019
gdc.author.wosid Onal, ahmet muhtar/AAS-5007-2020
gdc.author.wosid Cihaner, Atilla/AAC-9468-2021
gdc.coar.access metadata only access
gdc.coar.type text::journal::journal article
gdc.description.department Atılım University en_US
gdc.description.departmenttemp Atilim Univ, Dept Elect & Elect Engn, Ankara, Turkey; Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey en_US
gdc.description.endpage 62 en_US
gdc.description.issue 1 en_US
gdc.description.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
gdc.description.startpage 56 en_US
gdc.description.volume 39 en_US
gdc.description.wosquality Q3
gdc.identifier.wos WOS:000188804300008
gdc.scopus.citedcount 3
gdc.wos.citedcount 3
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