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Photovoltage method for the research of CdS and ZnO nanoparticles and hybrid MEH-PPV/nanoparticle structures

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dc.title Photovoltage method for the research of CdS and ZnO nanoparticles and hybrid MEH-PPV/nanoparticle structures en
dc.contributor.author Toušková, Jana
dc.contributor.author Toušek, Jiří
dc.contributor.author Rohovec, Jan
dc.contributor.author Růžička, Aleš
dc.contributor.author Polonskyi, Oleksandr
dc.contributor.author Urbánek, Pavel
dc.contributor.author Kuřitka, Ivo
dc.relation.ispartof Journal of Nanoparticle Research
dc.identifier.issn 1572-896X Scopus Sources, Sherpa/RoMEO, JCR
dc.identifier.issn 1388-0764 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2014
utb.relation.volume 16
utb.relation.issue 3
dc.type article
dc.language.iso en
dc.publisher Springer Netherlands
dc.identifier.doi 10.1007/s11051-014-2314-5
dc.relation.uri https://link.springer.com/article/10.1007/s11051-014-2314-5
dc.subject CdS en
dc.subject Energy conversion en
dc.subject MEH-PPV en
dc.subject Nanoparticles en
dc.subject Photovoltage spectra en
dc.subject Transmission electron microscopy en
dc.subject ZnO en
dc.description.abstract The paper demonstrates an application of photovoltaic effect in the research of nanomaterials and hybrid structures of polymers with nanoparticles. Photovoltage (PV) measurement was utilized for estimating the size of CdS and ZnO nanoparticles and diagnostics of hybrid structures with poly[2-methoxy-5-(2- ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV), namely nano-CdS/MEH-PPV and nano-ZnO/MEH-PPV. CdS average nanocrystal diameters 4.0 and 4.8 nm were calculated from the onset values of energies corresponding to the steep increase in the PV signals using the effective mass model. The range of size of ZnO particles was from about 5 up to 50 nm. Nanoparticle distribution obtained by transmission electron microscopy (TEM) measurements shows that the calculated diameters agree fairly well with the size of nanoparticles with the highest occurrence. The PV spectrum represents a sum of the spectra corresponding to the various nanoparticle sizes. The distribution of the nanoparticles was also obtained by a simple mathematical treatment of the PV spectra, and agreement with the results of TEM was found. PV and TEM measurements were performed on commercial CdS and ZnO nanoparticles and on CdS nanoparticles prepared in our laboratory. We employ triethanolamine as a protective agent to cover the surface of CdS nanoparticles. Nano-CdS/MEH-PPV and nano-ZnO/MeH-PPV hybrid structures were prepared, and influence of the particles on charge transport was shown by the PV spectra measurements. © 2014 Springer Science+Business Media. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1003720
utb.identifier.obdid 43872279
utb.identifier.scopus 2-s2.0-84896487823
utb.identifier.wok 000331906500002
utb.source j-scopus
dc.date.accessioned 2014-05-07T13:49:27Z
dc.date.available 2014-05-07T13:49:27Z
utb.contributor.internalauthor Urbánek, Pavel
utb.contributor.internalauthor Kuřitka, Ivo
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