20.500.12556/DKUM-36649 RAZVOJ IN KARAKTERIZACIJA OPTIČNIH Ru - SENZORJEV ZA DOLOČANJE KISIKA DEVELOPMENT AND CHARACTERIZATION OF OPTICAL Ru - SENSORS FOR OXYGEN DETERMINATION Rutenijevi kompleksi so daleč najbolj razširjeni O2 indikatorji, ker imajo učinkovito luminescenco, relativno stabilen kovina – ligand prenos naboja vzbujenega stanja, hiter odzivni čas, močno vidno absorpcijo, velike Stokes – ove preskoke in visoko fotokemično stabilnost. V diplomski nalogi smo za izdelavo senzorjev uporabili različne koncentracije rutenijevega kompleksa v različnih topilih. Preizkusili smo različne PVC folije uporabljene kot nosilec. Na »Spin – coaterju« smo optimirali program s katerim smo dobili optično gledano najbolj homogene nanose senzorskih raztopin. Senzorje smo izpostavili različnim koncentracijam kisika. Linearnost smo preverili v območju od 0 do 100 % koncentracije kisika. Ugotovili smo linearnost za senzorje pripravljene iz 60 in 80 mg rutenijevega kompleksa. »Spin – coating« se je izkazal kot alternativna metoda za nanos senzorskih raztopin, vendar po celotni senzorski površini ni možno pripraviti homogenega nanosa, kar smo pokazali tudi z opravljenimi SEM posnetki. Za nanašanje senzorskih raztopin na nosilec bi v bodoče uporabili mehanski nanos z natančnim nožem. Ruthenium complexes are by far the most widely used O2 indicators due to their efficient luminescence, relatively long − life metal − tolerant charge transfer when in the excited state, fast response time, strong visible absorption, large Stokes shifts, and high photochemical stability. In this thesis, we used different concentrations of ruthenium complexes in various solvents for sensor production. We used various PVC foils as the carrier. On »Spin – coater«, we optimized the program which helped us get optically most homogeneous sensor coating solutions. The sensors were exposed to various concentrations of oxygen. The linearity was tested in the range from 0 % to 100 % of oxygen concentration. We determined the linearity of sensors which were prepared from 60 to 80 mg of ruthenium complex. To conclude, "Spin − coating" could be an alternative method for the application of sensor solutions, but it is not possible to prepare the homogeneous layer on the whole sensor surface, which was demonstrated via implemented SEM recordings. In the future, it would be better to apply the sensor solutions to the carrier mechanically using the high precision knife. Optični kemijski senzorji senzorji za določanje kisika »Spin – coating« (Ru-(II) tris(4 7- difenil-1 10-fenantrolin) ClO4)2 Optical chemical sensors sensors for oxygen determination »Spin − coating« (Ru-(II) tris(4 7- difenil-1 10-fenantrolin) ClO4)2 true true false [M. Kelc] Slovenski jezik Angleški jezik Diplomsko delo 2012-06-19 11:04:16 2012-06-21 13:36:27 2022-04-21 14:21:48 2021-04-15 03:55:32 2012 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 544.165(043.2) 16693270 URN:SI:UM:DK:TLQXCDGG VS_Kelc_Maja_2012.pdf VS_Kelc_Maja_2012.pdf 1 2329F49BBB3FC8BE9FBD4D320B966756 1bdd705594f9b29bf7fb076889bd529b373585868c3afacef8000fc266a35c7b 19190e8f-7c08-11eb-bb7a-00155d0001ca 20.500.12556/dkum/d1e7257a-d913-4192-9db1-fe90f447f55a https://dk.um.si/Dokument.php?lang=slv&id=47895 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0