{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T02:27:02Z","timestamp":1772764022173,"version":"3.50.1"},"reference-count":59,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2020,11,27]],"date-time":"2020-11-27T00:00:00Z","timestamp":1606435200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Romanian Ministry of Education and Research","award":["National Core Founding Program (PN19-03 -contract no. 21 N\/2019 and PN19-15 -contract no. 16 N\/2019), Project No. 62\/2020 (IUCN ORDER no. 269\/20.05.2020) of JINR\u2013Romania collaboration (Theme No. 03-4-1128-2017\/2022) and DEXMAV Project (contract no.12PFE\/2"],"award-info":[{"award-number":["National Core Founding Program (PN19-03 -contract no. 21 N\/2019 and PN19-15 -contract no. 16 N\/2019), Project No. 62\/2020 (IUCN ORDER no. 269\/20.05.2020) of JINR\u2013Romania collaboration (Theme No. 03-4-1128-2017\/2022) and DEXMAV Project (contract no.12PFE\/2"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>The matrix-assisted pulsed laser evaporation (MAPLE) technique was used for depositing thin films based on a recently developed conjugated polymer, poly[2,5-(2-octyldodecyl)-3,6-diketopyrrolopyrrole-alt-5,5-(2,5-di(thien-2-yl)thieno [3,2-b]thiophene)] (DPP-DTT) and fullerene C60 blends. The targets used in the MAPLE process were obtained by freezing chloroform solutions with different DPP-DTT:C60 weight ratios, with the MAPLE deposition being carried at a low laser fluence, varying the number of laser pulses. The structural, morphological, optical, and electrical properties of the DPP-DTT:C60 blend layers deposited by MAPLE were investigated in order to emphasize the influence of the DPP-DTT:C60 weight ratio and the number of laser pulses on these features. The preservation of the chemical structure of both DPP-DTT and C60 during the MAPLE deposition process is confirmed by the presence of their vibrational fingerprints in the FTIR spectra of the organic thin films. The UV-VIS and photoluminescence spectra of the obtained organic layers reveal the absorption bands attributed to DPP-DTT and the emission bands associated with C60, respectively. The morphology of the DPP-DTT:C60 blend films consists of aggregates and fibril-like structures. Regardless the DPP-DTT:C60 weight ratio and the number of laser pulses used during the MAPLE process, the current\u2013voltage characteristics recorded, under illumination, of all structures developed on the MAPLE deposited layers evidenced a photovoltaic cell behavior. The results proved that the MAPLE emerges as a viable technique for depositing thin films based on conjugated polymers featured by a complex structure that can be further used to develop devices for applications in the solar cell area.<\/jats:p>","DOI":"10.3390\/nano10122366","type":"journal-article","created":{"date-parts":[[2020,11,28]],"date-time":"2020-11-28T03:51:16Z","timestamp":1606535476000},"page":"2366","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Organic Thin Films Based on DPP-DTT:C60 Blends Deposited by MAPLE"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2010-7318","authenticated-orcid":false,"given":"Marcela","family":"Socol","sequence":"first","affiliation":[{"name":"National Institute of Material Physics, 405A Atomistilor Street, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nicoleta","family":"Preda","sequence":"additional","affiliation":[{"name":"National Institute of Material Physics, 405A Atomistilor Street, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4030-360X","authenticated-orcid":false,"given":"Carmen","family":"Breazu","sequence":"additional","affiliation":[{"name":"National Institute of Material Physics, 405A Atomistilor Street, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andreea","family":"Costas","sequence":"additional","affiliation":[{"name":"National Institute of Material Physics, 405A Atomistilor Street, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gabriela","family":"Petre","sequence":"additional","affiliation":[{"name":"National Institute of Material Physics, 405A Atomistilor Street, 077125 Magurele, Romania"},{"name":"Faculty of Physics, University of Bucharest, 405 Atomistilor Street, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7755-1685","authenticated-orcid":false,"given":"Anca","family":"Stanculescu","sequence":"additional","affiliation":[{"name":"National Institute of Material Physics, 405A Atomistilor Street, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gianina","family":"Popescu-Pelin","sequence":"additional","affiliation":[{"name":"National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andreea","family":"Mihailescu","sequence":"additional","affiliation":[{"name":"National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gabriel","family":"Socol","sequence":"additional","affiliation":[{"name":"National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,11,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2000364","DOI":"10.1002\/solr.202000364","article-title":"A critical review on efficient thick-film organic solar cells","volume":"4","author":"Gao","year":"2020","journal-title":"Sol. 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