SwePub
Sök i LIBRIS databas

  Utökad sökning

WFRF:(Petsagkourakis Ioannis 1989 )
 

Sökning: WFRF:(Petsagkourakis Ioannis 1989 ) > On the anomalous op...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00006010naa a2200697 4500
001oai:DiVA.org:ri-38510
003SwePub
008190503s2019 | |||||||||||000 ||eng|
009oai:DiVA.org:liu-157203
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-385102 URI
0247 a https://doi.org/10.1039/c8tc06302h2 DOI
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1572032 URI
040 a (SwePub)rid (SwePub)liu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Chen, Shangzhiu Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten4 aut0 (Swepub:liu)shach90
2451 0a On the anomalous optical conductivity dispersion of electrically conducting polymers :b Ultra-wide spectral range ellipsometry combined with a Drude-Lorentz model
264 c 2019
264 1b Royal Society of Chemistry,c 2019
338 a print2 rdacarrier
500 a Funding Agencies|Swedish Research Council; Swedish Foundation for Strategic Research; Wenner-Gren Foundations; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University [2009 00971]
520 a Electrically conducting polymers (ECPs) are becoming increasingly important in areas such as optoelectronics, biomedical devices, and energy systems. Still, their detailed charge transport properties produce an anomalous optical conductivity dispersion that is not yet fully understood in terms of physical model equations for the broad range optical response. Several modifications to the classical Drude model have been proposed to account for a strong non-Drude behavior from terahertz (THz) to infrared (IR) ranges, typically by implementing negative amplitude oscillator functions to the model dielectric function that effectively reduce the conductivity in those ranges. Here we present an alternative description that modifies the Drude model via addition of positive-amplitude Lorentz oscillator functions. We evaluate this so-called Drude-Lorentz (DL) model based on the first ultra-wide spectral range ellipsometry study of ECPs, spanning over four orders of magnitude: from 0.41 meV in the THz range to 5.90 eV in the ultraviolet range, using thin films of poly(3,4-ethylenedioxythiophene):tosylate (PEDOT:Tos) as a model system. The model could accurately fit the experimental data in the whole ultrawide spectral range and provide the complex anisotropic optical conductivity of the material. Examining the resonance frequencies and widths of the Lorentz oscillators reveals that both spectrally narrow vibrational resonances and broader resonances due to localization processes contribute significantly to the deviation from the Drude optical conductivity dispersion. As verified by independent electrical measurements, the DL model accurately determines the electrical properties of the thin film, including DC conductivity, charge density, and (anisotropic) mobility. The ellipsometric method combined with the DL model may thereby become an effective and reliable tool in determining both optical and electrical properties of ECPs, indicating its future potential as a contact-free alternative to traditional electrical characterization.
650 7a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng
653 a Anisotropy
653 a Conducting polymers
653 a Dispersions
653 a Ellipsometry
653 a Functional polymers
653 a Optical conductivity
653 a Resonance
653 a Sulfur compounds
653 a Thin films
653 a Classical drude model
653 a Conductivity dispersions
653 a Electrical characterization
653 a Electrical measurement
653 a Electrically conducting polymer
653 a Model dielectric functions
653 a Optical and electrical properties
653 a Poly-3
653 a 4-ethylenedioxythiophene
653 a Electric variables measurement
7001 a Kuhne, Philippu Linköpings universitet,Halvledarmaterial,Tekniska fakulteten4 aut0 (Swepub:liu)phiku63
7001 a Stanishev, Valleryu Linköpings universitet,Halvledarmaterial,Tekniska fakulteten4 aut0 (Swepub:liu)valst30
7001 a Knight, Seanu University of Nebraska-Lincoln, US,Univ Nebraska, NE 68588 USA4 aut
7001 a Brooke, Robert,d 1989-u RISE,Acreo,RISE Acreo, Sweden4 aut0 (Swepub:liu)robbr00
7001 a Petsagkourakis, Ioannisu Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten4 aut0 (Swepub:liu)ioape95
7001 a Crispin, Xavieru Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten4 aut0 (Swepub:liu)xavcr43
7001 a Schubert, Mathiasu Linköpings universitet,Halvledarmaterial,Tekniska fakulteten,Univ Nebraska, NE 68588 USA; Leibniz Inst Polymerforsch Dresden eV, Germany4 aut0 (Swepub:liu)schma39
7001 a Darakchieva, Vanyau Linköpings universitet,Halvledarmaterial,Tekniska fakulteten4 aut0 (Swepub:liu)vanda79
7001 a Jonsson, Magnusu Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten4 aut0 (Swepub:liu)magjo02
7102 a Linköpings universitetb Laboratoriet för organisk elektronik4 org
7730 t Journal of Materials Chemistry Cd : Royal Society of Chemistryg 7:15, s. 4350-4362q 7:15<4350-4362x 2050-7526x 2050-7534
8564 u https://pubs.rsc.org/en/content/articlepdf/2019/tc/c8tc06302h
8564 u https://liu.diva-portal.org/smash/get/diva2:1324737/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-38510
8564 8u https://doi.org/10.1039/c8tc06302h
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-157203

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy