{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:05:42Z","timestamp":1760148342035,"version":"build-2065373602"},"reference-count":74,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2023,4,20]],"date-time":"2023-04-20T00:00:00Z","timestamp":1681948800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Russian Science Foundation","award":["23\u201379\u201330016","KZ202210009014"],"award-info":[{"award-number":["23\u201379\u201330016","KZ202210009014"]}]},{"name":"R&amp;D Program of Beijing Municipal Education Commission","award":["23\u201379\u201330016","KZ202210009014"],"award-info":[{"award-number":["23\u201379\u201330016","KZ202210009014"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nanomaterials"],"abstract":"<jats:p>UV-induced photoluminescence of organosilica films with ethylene and benzene bridging groups in their matrix and terminal methyl groups on the pore wall surface was studied to reveal optically active defects and understand their origin and nature. The careful selection of the film\u2019s precursors and conditions of deposition and curing and analysis of chemical and structural properties led to the conclusion that luminescence sources are not associated with the presence of oxygen-deficient centers, as in the case of pure SiO2. It is shown that the sources of luminescence are the carbon-containing components that are part of the low-k-matrix, as well as the carbon residues formed upon removal of the template and UV-induced destruction of organosilica samples. A good correlation between the energy of the photoluminescence peaks and the chemical composition is observed. This correlation is confirmed by the results obtained by the Density Functional theory. The photoluminescence intensity increases with porosity and internal surface area. The spectra become more complicated after annealing at 400 \u00b0C, although Fourier transform infrared spectroscopy does not show these changes. The appearance of additional bands is associated with the compaction of the low-k matrix and the segregation of template residues on the surface of the pore wall.<\/jats:p>","DOI":"10.3390\/nano13081419","type":"journal-article","created":{"date-parts":[[2023,4,21]],"date-time":"2023-04-21T01:33:43Z","timestamp":1682040823000},"page":"1419","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["UV-Excited Luminescence in Porous Organosilica Films with Various Organic Components"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7877-3770","authenticated-orcid":false,"given":"Md","family":"Rasadujjaman","sequence":"first","affiliation":[{"name":"Department of Microelectronics, North China University of Technology, Beijing 100144, China"},{"name":"Department of Physics, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinming","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Microelectronics, North China University of Technology, Beijing 100144, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dmitry A.","family":"Spassky","sequence":"additional","affiliation":[{"name":"Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia"},{"name":"Institute of Physics, University of Tartu, 50411 Tartu, Estonia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sergej","family":"Naumov","sequence":"additional","affiliation":[{"name":"Leibniz Institute of Surface Engineering (IOM), 04318 Leipzig, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4024-5411","authenticated-orcid":false,"given":"Alexey S.","family":"Vishnevskiy","sequence":"additional","affiliation":[{"name":"Research and Education Center \u201cTechnological Center\u201d, MIREA\u2014Russian Technological University (RTU MIREA), Moscow 119454, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4675-2067","authenticated-orcid":false,"given":"Konstantin A.","family":"Vorotilov","sequence":"additional","affiliation":[{"name":"Research and Education Center \u201cTechnological Center\u201d, MIREA\u2014Russian Technological University (RTU MIREA), Moscow 119454, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiang","family":"Yan","sequence":"additional","affiliation":[{"name":"Department of Microelectronics, North China University of Technology, Beijing 100144, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Microelectronics, North China University of Technology, Beijing 100144, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9677-1293","authenticated-orcid":false,"given":"Mikhail R.","family":"Baklanov","sequence":"additional","affiliation":[{"name":"Department of Microelectronics, North China University of Technology, Beijing 100144, China"},{"name":"Research and Education Center \u201cTechnological Center\u201d, MIREA\u2014Russian Technological University (RTU MIREA), Moscow 119454, Russia"},{"name":"European Centre for Knowledge and Technology Transfer (EUROTEX), 1040 Brussels, Belgium"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"3913","DOI":"10.1039\/C2CS35222B","article-title":"Periodic Mesoporous Organosilicas: From simple to complex bridges; a comprehensive overview of functions, morphologies and applications","volume":"42","author":"Esquivel","year":"2013","journal-title":"Chem. 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