{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T09:17:14Z","timestamp":1774430234286,"version":"3.50.1"},"reference-count":87,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2022,7,20]],"date-time":"2022-07-20T00:00:00Z","timestamp":1658275200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"J.C.G. and L.P. acknowledge the Institute for Nanostructures, Nanomodeling and Nanofabrication (i3N) of the Portuguese Foundation for Science and Technology (FCT)","award":["(UID\/CTM\/50025)"],"award-info":[{"award-number":["(UID\/CTM\/50025)"]}]},{"name":"J.C.G. and L.P. acknowledge the Institute for Nanostructures, Nanomodeling and Nanofabrication (i3N) of the Portuguese Foundation for Science and Technology (FCT)","award":["(2013\/16245-2)"],"award-info":[{"award-number":["(2013\/16245-2)"]}]},{"name":"J.C.G. and L.P. acknowledge the Institute for Nanostructures, Nanomodeling and Nanofabrication (i3N) of the Portuguese Foundation for Science and Technology (FCT)","award":["(470529\/2012-1) and 458413\/2014-3)"],"award-info":[{"award-number":["(470529\/2012-1) and 458413\/2014-3)"]}]},{"name":"J.C.G. and L.P. acknowledge the Institute for Nanostructures, Nanomodeling and Nanofabrication (i3N) of the Portuguese Foundation for Science and Technology (FCT)","award":["(MCT\/CNPq\/FAPESP)"],"award-info":[{"award-number":["(MCT\/CNPq\/FAPESP)"]}]},{"name":"J.C.G., L.G.A.T.D., M.M.F. and T.D.Z.A. acknowledge FAPESP","award":["(UID\/CTM\/50025)"],"award-info":[{"award-number":["(UID\/CTM\/50025)"]}]},{"name":"J.C.G., L.G.A.T.D., M.M.F. and T.D.Z.A. acknowledge FAPESP","award":["(2013\/16245-2)"],"award-info":[{"award-number":["(2013\/16245-2)"]}]},{"name":"J.C.G., L.G.A.T.D., M.M.F. and T.D.Z.A. acknowledge FAPESP","award":["(470529\/2012-1) and 458413\/2014-3)"],"award-info":[{"award-number":["(470529\/2012-1) and 458413\/2014-3)"]}]},{"name":"J.C.G., L.G.A.T.D., M.M.F. and T.D.Z.A. acknowledge FAPESP","award":["(MCT\/CNPq\/FAPESP)"],"award-info":[{"award-number":["(MCT\/CNPq\/FAPESP)"]}]},{"name":"CNPq","award":["(UID\/CTM\/50025)"],"award-info":[{"award-number":["(UID\/CTM\/50025)"]}]},{"name":"CNPq","award":["(2013\/16245-2)"],"award-info":[{"award-number":["(2013\/16245-2)"]}]},{"name":"CNPq","award":["(470529\/2012-1) and 458413\/2014-3)"],"award-info":[{"award-number":["(470529\/2012-1) and 458413\/2014-3)"]}]},{"name":"CNPq","award":["(MCT\/CNPq\/FAPESP)"],"award-info":[{"award-number":["(MCT\/CNPq\/FAPESP)"]}]},{"name":"the National Institute of Organic Electronics (INEO)","award":["(UID\/CTM\/50025)"],"award-info":[{"award-number":["(UID\/CTM\/50025)"]}]},{"name":"the National Institute of Organic Electronics (INEO)","award":["(2013\/16245-2)"],"award-info":[{"award-number":["(2013\/16245-2)"]}]},{"name":"the National Institute of Organic Electronics (INEO)","award":["(470529\/2012-1) and 458413\/2014-3)"],"award-info":[{"award-number":["(470529\/2012-1) and 458413\/2014-3)"]}]},{"name":"the National Institute of Organic Electronics (INEO)","award":["(MCT\/CNPq\/FAPESP)"],"award-info":[{"award-number":["(MCT\/CNPq\/FAPESP)"]}]},{"name":"UNICAMP\/FAEPEX for financial support and fellowships. A.d.M. and J.N.d.F. acknowledge the Center for Information \u201cRenato Archer\u201d (CTI)","award":["(UID\/CTM\/50025)"],"award-info":[{"award-number":["(UID\/CTM\/50025)"]}]},{"name":"UNICAMP\/FAEPEX for financial support and fellowships. A.d.M. and J.N.d.F. acknowledge the Center for Information \u201cRenato Archer\u201d (CTI)","award":["(2013\/16245-2)"],"award-info":[{"award-number":["(2013\/16245-2)"]}]},{"name":"UNICAMP\/FAEPEX for financial support and fellowships. A.d.M. and J.N.d.F. acknowledge the Center for Information \u201cRenato Archer\u201d (CTI)","award":["(470529\/2012-1) and 458413\/2014-3)"],"award-info":[{"award-number":["(470529\/2012-1) and 458413\/2014-3)"]}]},{"name":"UNICAMP\/FAEPEX for financial support and fellowships. A.d.M. and J.N.d.F. acknowledge the Center for Information \u201cRenato Archer\u201d (CTI)","award":["(MCT\/CNPq\/FAPESP)"],"award-info":[{"award-number":["(MCT\/CNPq\/FAPESP)"]}]},{"name":"R.A.M. thanks R.L.A. Haiduke for valuable discussions and orientation. R.A.M. also thanks the Center for Mathematical Sciences Applied to Industry (CeMEAI)-FAPESP 2013\/07375-0 for the use of their computational resources. The authors acknowledge the assistance of Maria Jo\u00e3o S\u00e1 Pereira in performing the atomic force microscopy experiments","award":["(UID\/CTM\/50025)"],"award-info":[{"award-number":["(UID\/CTM\/50025)"]}]},{"name":"R.A.M. thanks R.L.A. Haiduke for valuable discussions and orientation. R.A.M. also thanks the Center for Mathematical Sciences Applied to Industry (CeMEAI)-FAPESP 2013\/07375-0 for the use of their computational resources. The authors acknowledge the assistance of Maria Jo\u00e3o S\u00e1 Pereira in performing the atomic force microscopy experiments","award":["(2013\/16245-2)"],"award-info":[{"award-number":["(2013\/16245-2)"]}]},{"name":"R.A.M. thanks R.L.A. Haiduke for valuable discussions and orientation. R.A.M. also thanks the Center for Mathematical Sciences Applied to Industry (CeMEAI)-FAPESP 2013\/07375-0 for the use of their computational resources. The authors acknowledge the assistance of Maria Jo\u00e3o S\u00e1 Pereira in performing the atomic force microscopy experiments","award":["(470529\/2012-1) and 458413\/2014-3)"],"award-info":[{"award-number":["(470529\/2012-1) and 458413\/2014-3)"]}]},{"name":"R.A.M. thanks R.L.A. Haiduke for valuable discussions and orientation. R.A.M. also thanks the Center for Mathematical Sciences Applied to Industry (CeMEAI)-FAPESP 2013\/07375-0 for the use of their computational resources. The authors acknowledge the assistance of Maria Jo\u00e3o S\u00e1 Pereira in performing the atomic force microscopy experiments","award":["(MCT\/CNPq\/FAPESP)"],"award-info":[{"award-number":["(MCT\/CNPq\/FAPESP)"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>Herein, we report the synthesis and characterization of two Pt(II) coordination compounds, the new platinum(II)[N,N\u2032-bis(salicylidene)-3,4-diaminobenzophenone)] ([Pt(sal-3,4-ben)]) and the already well-known platinum(II)[N,N\u2032-bis(salicylidene)-o-phenylenediamine] ([Pt(salophen)]), along with their application as guests in a poly [9,9-dioctylfluorenyl-2,7-diyl] (PFO) conjugated polymer in all-solution processed single-layer white organic light-emitting diodes. Completely different performances were achieved: 2.2% and 15.3% of external quantum efficiencies; 2.8 cd A\u22121 and 12.1 cd A\u22121 of current efficiencies; and 3103 cd m\u22122 and 6224 cd m\u22122 of luminance for the [Pt(salophen)] and [Pt(sal-3,4-ben)] complexes, respectively. The Commission Internationale de l\u2019Eclairage (CIE 1931) chromaticity color coordinates are (0.33, 0.33) for both 0.1% mol\/mol Pt(II):PFO composites at between approximately 3.2 and 8 V. The optoelectronic properties of doped and neat PFO films have been investigated, using steady-state and time-resolved photoluminescence. Theoretical calculations at the level of relativistic density functional theory explained these results, based on the presence of the Pt(II) central ion\u2019s phosphorescence emission, considering spin-orbit coupling relationships. The overall results are explained, taking into account the active layer morphological properties, along with the device\u2019s electric balance and the emitter\u2019s efficiencies, according to deep-trap space-charge models. Considering the very simple structure of the device and the ease of synthesis of such compounds, the developed framework can offer a good trade-off for solution-deposited white organic light-emitting diodes (WOLEDs), with further applications in the field of lighting and signage.<\/jats:p>","DOI":"10.3390\/nano12142497","type":"journal-article","created":{"date-parts":[[2022,7,21]],"date-time":"2022-07-21T03:34:40Z","timestamp":1658374480000},"page":"2497","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["All-Solution Processed Single-Layer WOLEDs Using [Pt(salicylidenes)] as Guests in a PFO Matrix"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2904-1271","authenticated-orcid":false,"given":"Jos\u00e9 Carlos","family":"Germino","sequence":"first","affiliation":[{"name":"Chemistry Institute, University of Campinas\u2014UNICAMP, Campinas 13083-862, Brazil"},{"name":"Department of Physics and i3N\u2014Institute for Nanostructures, Nanomodelling and Nanofabrication, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5146-2166","authenticated-orcid":false,"given":"Lu\u00eds Gustavo Teixeira Alves","family":"Duarte","sequence":"additional","affiliation":[{"name":"Chemistry Institute, University of Campinas\u2014UNICAMP, Campinas 13083-862, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0279-4831","authenticated-orcid":false,"given":"Rodrigo Ara\u00fajo","family":"Mendes","sequence":"additional","affiliation":[{"name":"S\u00e3o Carlos Institute of Chemistry, University of S\u00e3o Paulo\u2014USP, S\u00e3o Carlos 13566-590, Brazil"}]},{"given":"Marcelo Meira","family":"Faleiros","sequence":"additional","affiliation":[{"name":"Chemistry Institute, University of Campinas\u2014UNICAMP, Campinas 13083-862, Brazil"}]},{"given":"Andreia","family":"de Morais","sequence":"additional","affiliation":[{"name":"Center for Information Technology Renato Archer\u2014CTI, Campinas 13069-901, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6446-1127","authenticated-orcid":false,"given":"Jilian Nei","family":"de Freitas","sequence":"additional","affiliation":[{"name":"Center for Information Technology Renato Archer\u2014CTI, Campinas 13069-901, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5482-0715","authenticated-orcid":false,"given":"Luiz","family":"Pereira","sequence":"additional","affiliation":[{"name":"Department of Physics and i3N\u2014Institute for Nanostructures, Nanomodelling and Nanofabrication, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7471-3730","authenticated-orcid":false,"given":"Teresa Dib Zambon","family":"Atvars","sequence":"additional","affiliation":[{"name":"Chemistry Institute, University of Campinas\u2014UNICAMP, Campinas 13083-862, Brazil"}]}],"member":"1968","published-online":{"date-parts":[[2022,7,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3259","DOI":"10.1039\/C3CS60449G","article-title":"Recent progress in metal-organic complexes for optoelectronic applications","volume":"43","author":"Xu","year":"2014","journal-title":"Chem. 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