Electrical conductivity of doped porous glasses as possible sensors for oxygen

• Autorzy: Saraidarov T. , Reisfeld R. , Elena Zigansky E. , Sashchiuk A. , Lifshitz E.
• Języki publikacji: EN

Abstrakty

EN

We are proposing Rubpy complex incorporated in a number of porous sol-gel thin films as a sensor for oxygen. The principle is based on the following fact: triplet oxygen reacts with the excited states of Rubpy resulting in decay of luminescence of the complex due to triplet quenching. The decrease of fluorescence is proportional to the amount of absorbed oxygen. We discuss here several sol-gel matrices with doped by Ru(bpy)3+2 deposited as thin films on ITO conducting glass. The absorption and emission spectra of the complex, and electrical conductivity of the doped films show how the fluorescence can be excited either by optical or electronic means. The decrease of fluorescence indicates the concentration of oxygen.

Słowa kluczowe

EN

Rubpy complex; porous glasses; sensors for oxygen; fluorescence; electrical conductivity

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2008
• Tom: Vol. 38, nr 1
• Strony: 109--117
• Opis fizyczny: Bibliogr. 22 poz.

Twórcy

autor

Saraidarov T.

autor

Reisfeld R.

autor

Elena Zigansky E.

autor

Sashchiuk A.

autor

Lifshitz E.

• The Hebrew University of Jerusalem, Inorganic Chemistry Department, Givat-Ram, 91940 Jerusalem, Israel

Bibliografia

• [1] MCDONAGH C., MACCRAITH B.D., MCEVOY A.K., Tailoring of sol–gel films for optical sensing of oxygen in gas and aqueous phase, Analytical Chemistry 70(1), 1998, pp. 45–50.
• [2] AHMAD M., MOHHAMED N., ABDULLAH J., Sensing material for oxygen gas prepared by doping sol–gel film with tris(2,2-bipyridyl) dichlororuthenium complex, Journal of Non-Crystalline Solids 290(1), 2001, pp. 86–91.
• [3] MCDONAGH C.M., SHIELDS A.M., MCEVOY A.K., MACCRAITH B.D., GOUIN J.F., Optical sol–gel baseddissolved oxygen sensor: progress towards a commercial instrument, Journal of Sol–Gel Science and Technology 13(1–3), 1998, pp. 207–11.
• [4] BACON J.R., DEMAS J.N., Determination of oxygen concentrations by luminescence quenching of polymer-immobilized transition-metal complex, Analytical Chemistry 59(23), 1987, pp. 2781–5.
• [5] XIAOYAN ZHANG, RODGEM M.A.J., Energy and electron transfer reactions of the MLCT state of ruthenium tris(bipyridy1) with molecular oxygen: A laser flash photolysis study, Journal of Physical Chemistry 99(34), 1995, pp. 12797–803.
• [6] MULAZZANI Q.G., HAI SUN, HOFFMAN M.Z., FORD W.E., RODGERS M.A.J., Quenching of the excited states of ruthenium(II)-diimine complexes by oxygen, Journal of Physical Chemistry 98(4), 1994, pp. 1145–50.
• [7] GAFNEY H.D., Spectral, photophysical and photochemical properties of Ru(bpy)32+ on porous vycor glass, Coordination Chemistry Reviews 104(1), 1990, pp. 113–41.
• [8] REISFELD R., MANOR N., AVNIR D., Transparent high surface area porous supports as new materiale for luminescent solar concentrators, Solar Energy Materials 8(4), 1983, pp. 399–409.
• [9] MARUSZEWSKI K., ANDRZEJEWSKI D., STREK W., Thermal sensor based on luminescence of Ru(bpy) entrapped in sol–gel glasses, Journal of Luminescence 72–74, 1997, pp. 226–8
• [10] REISFELD R., BRUSILOVSKY D., EYAL M., JOERGENSEN C.K., Luminescence of tris(2,2'-bipyridine)- ruthenium(II) incorporated at moderate temperature in sol–gel glasses and various low-melting glasses, Chimia 43(12), 1989, pp. 385–7.
• [11] AVNIR D., KAUFMAN V.R., REISFELD R., Interfaces and confined environments. Part 23. Organic fluorescent dyes trapped in silica and silica-titania thin films by the sol–gel method. Photophysical, film and cage properties, Journal of Non-Crystalline Solids 74(2–3), 1985, pp. 395– 406.
• [12] MARUSZEWSKI K., JASIORSKI M., SALAMON M., STREK W., Physicochemical properties of Ru(bpy)3 2+ entrapped in silicate bulks and fiber thin films prepared by the sol–gel metho Chemical Physics Letters 314(1–2), 1999, pp. 83–90.
• [13] REISFELD R., ZIGANSKY E., SARAIDAROV T., Steady state spectroscopy and stability of tris(8-hydroxy quinoline) aluminum and ruthenium tris bipyridile chloride in sol–gel glasses, Optical Materials 30(11), 2008, pp. 1706–9.
• [14] ZEMSKII V.I., VERESOV A.V., ERSHOV A.YU., Spectral luminescent parameters of ruthenium (II) complexes in a porous glass, Optics and Spectroscopy 81(2), 1996, pp. 225–30.
• [15] YANG J., GORDON K.C., ZIDON Y., SHAPIRA Y., Light-emitting devices based on ruthenium(II) (4,7-diphenyl-1,10-phenanthroline)3: Device response rate and efficiency by use of tris-(8-hydroxyquinoline) aluminum, Journal of Applied Physics 94(10), 2003, pp. 6391–5.
• [16] SARAIDAROV T., REISFELD R., PIETRASZKIEWICZ M., Luminescent properties of silica and zirconia xerogels doped with europium(III) salts and europium(III) cryptate incorporating 3; 3'-biisoquinoline-2; 2'-dioxide, Chemical Physics Letters 330(5–6), 2000, pp. 5 20.
• [17] REISFELD R., ZELNER M., PATRA A., Fluorescence study of zirconia films doped by Eu3+, Tb3+ and Sm3+ and their comparison with silica films, Journal of Alloys and Compounds 300–301, 2000, pp. 147–51.
• [18] REISFELD R., SARAIDAROV T., GAFT M., PIETRASZKIEWICZ M., PIETRASZKIEWICZ O., BIANKETTI S., Rare earth ions, their spectroscopy of cryptates and related complexes in sol–gel glasses, Optical Materials 24(1–2), 2003, pp. 1–13.
• [19] OOMMAN K. VARGHESE, MALHOTRA L.K., SHARMA G.L., High ethanol sensitivity in sol–gel derived SnO2 thin films, Sensors and Actuators B: Chemical 55(2–3), 1999, pp. 161–5.
• [20] TETSUICHI KUDO, A new heteropolyacid with carbon as a heteroatom in a Keggin-like structure, Nature 312(5994), 1984, pp. 537–8.
• [21] MACEK M., OREL B., KRASOVEC U.O., The effect of lithiation on the electrochromism of sol–gel derived niobium oxide films, Journal of the Electrochemical Society 144(9), 1997, pp. 3002–10.
• [22] SARAIDAROV T., REISFELD R., SASHCHIUK A., LIFSHITZ E., Nanocrystallites of lead sulfide In hybrid films prepared by sol–gel process, Journal of Sol–Gel Science and Technology 34(2), 2005, pp. 137–5.