{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T18:26:17Z","timestamp":1791915977636,"version":"4.3.4"},"reference-count":24,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2020,12,29]],"date-time":"2020-12-29T00:00:00Z","timestamp":1609200000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Luminescence"],"published-print":{"date-parts":[[2021,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    An attempt has been made to synthesize orange\u2013red light\u2010emitting rare earth\u2010doped polymer matrices Eu\n                    <jats:sub>0.5<\/jats:sub>\n                    Sm\n                    <jats:sub>0.5<\/jats:sub>\n                    (TTA)\n                    <jats:sub>3<\/jats:sub>\n                    tppo (Eu\u00a0=\u00a0europium, Sm\u00a0=\u00a0samarium, TTA\u00a0=\u00a0thenoyltrifluoroacetone, tppo\u00a0=\u00a0triphenylphosphine oxide) hybrid organic complex by solution technique. Blended thin films were made by molecularly doping the complex in polymethylmethacrylate (PMMA) and polystyrene (PS) polymers at different weight percentages (5%, 10%). These films were solvated in basic and acidic media to explore the effect of solvent on its luminescence properties. UV\u2013visible absorption spectra of these solvated films portray two peaks corresponding to \u03c0\u2192\u03c0* and n\u2192\u03c0* optical transitions in the range 240\u2013275\u00a0nm and 370\u2013390\u00a0nm in basic medium. Energy band gap of these thin films in basic medium was found between 3.16\u00a0eV to 3.20\u00a0eV and 3.12\u00a0eV to 3.22\u00a0eV in acidic medium. Photoluminescence spectra of all films in dichloromethane showed an intense peak at 614\u00a0nm, whereas in formic acid, the same were found at 475\u00a0nm, which fell in the orange\u2013red and blue region of the visible spectrum, respectively. CIE coordinates of these solvated films in various solvents and at different weight percentages revealed tunable orange\u2013red to blue light emission with change in polarity of the solvent. Therefore the synthesized complexes blended in the polymers can be shaped into flexible films for fabrication of organic light\u2010emitting diodes (OLEDs) with consistent results, proving their prospect as colour tunable light emissive materials for OLED devices, lasers, displays, and solid\u2010state lighting.\n                  <\/jats:p>","DOI":"10.1002\/bio.3997","type":"journal-article","created":{"date-parts":[[2020,12,18]],"date-time":"2020-12-18T05:51:33Z","timestamp":1608270693000},"page":"1878-1884","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Investigations on optical properties of Eu\n                    <sub>0.5<\/sub>\n                    Sm\n                    <sub>0.5<\/sub>\n                    (TTA)\n                    <sub>3<\/sub>\n                    tppo hybrid organic complexes molecularly doped in PMMA and PS matrices"],"prefix":"10.1002","volume":"36","author":[{"given":"Akhilesh","family":"Ugale","sequence":"first","affiliation":[{"name":"Department of Applied Physics G H Raisoni Academy of Engineering &amp; Technology  Nagpur India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8115-9010","authenticated-orcid":false,"given":"N. Thejo","family":"Kalyani","sequence":"additional","affiliation":[{"name":"Department of Applied Physics Laxminarayan Institute of Technology  Nagpur India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S.J.","family":"Dhoble","sequence":"additional","affiliation":[{"name":"Department of Physics RTM Nagpur University  Nagpur India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,12,29]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.98799"},{"key":"e_1_2_5_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tsf.2008.12.015"},{"key":"e_1_2_5_4_1","doi-asserted-by":"publisher","DOI":"10.1063\/1.343409"},{"key":"e_1_2_5_5_1","doi-asserted-by":"crossref","unstructured":"J. H.Burroughes D. D. C.Bradley A. R.Brown R. N.Marks K.Mackay R. H.Friend P. L.Burns A. 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