The effect of poly(ethylene glycol) on the crystallisation and phase transitions of nanocrystalline TiO2 thin films

• Autorzy: Djaoued Y. , Robichaud J. , Brüning R. , Albert A. S. , Ashrit P. V.
• Konferencja: Sol-Gel Materials Research, Technology, Applications SGM'04, 6-11 june 2004
• Języki publikacji: EN

Abstrakty

EN

Titanium dioxide (TiO2) films, composed mainly of anatase nanocrystallites, have been obtained from a low temperature poly(ethylene glycol) (PEG) modified sol-gel method. The maximum process temperature in this method is around 90 °C. An addition of PEG in the films accelerates the formation of anatase nanocrystallites. In order to better understand the nature of the influence of PEG on film crystallization, sol-gel solutions were prepared with PEG of different molecular weights (200, 400 and 600). The reference solution without PEG was also prepared. In addition, the influence of different PEG chain lengths on the films' phase transition from anatase to rutile was studied by means of Raman spectroscopy and XRD. Anatase was found to be stable up to 900?1000 °C, depending on the molecular weight of the PEG used in the films.

Słowa kluczowe

EN

nanocrystalline titania films; sol-gel; poly(ethylene glycol) (PEG); phase transition; Raman; XRD

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2005
• Tom: Vol. 23, No. 1
• Strony: 15--27
• Opis fizyczny: Bibliogr. 24 poz.

Twórcy

autor

Djaoued Y.

• Université de Moncton - Campus de Shippagan, 218, J.-D. Gauthier, Shippagan, N.-B., Canada, E8S 1P6

autor

Robichaud J.

• Université de Moncton - Campus de Shippagan, 218, J.-D. Gauthier, Shippagan, N.-B., Canada, E8S 1P6

autor

Brüning R.

• Physics Department, Mount Allison University, Sackville, N.B., Canada E4L 1E6

autor

Albert A. S.

• Université de Moncton - Campus de Shippagan, 218, J.-D. Gauthier, Shippagan, N.-B., Canada, E8S 1P6

autor

Ashrit P. V.

• Département de physique et d’astronomie, Université de Moncton, Moncton, N.-B., Canada E1A 3E9

Bibliografia

• [1] BENNETT J.M., PELLETIER E., ALBRAND G., BORGOGNO J.-P., LAZARIDES B., CARNIGLIA C.K., SCHMELL R.A., ALLEN T.H., TUTTLE-HART T., GUENTHER K.H., SAXER A., Appl. Opt., 28 (1989), 3303.
• [2] DESU S. B., Mater. Sci. Eng., B13 (1992), 299.
• [3] GRATZEL M., Comment. Inorg. Chem., 12 (1991), 93.
• [4] LOBL P., HUPPERTZ M.,MERGEL D., Thin Solid Films, 251 (1994), 72.
• [5] HA H.K., YOSIMOTO M., KOINUMA H.,MOON B., ISHIWARA H., Appl. Phys. Lett., 68 (1996), 2965.
• [6] NATARAJAN C., NOGAMI G., J. Electrochem. Soc., 143 (1996), 1547.
• [7] DJAOUED Y., BADILESCU S., ASHRIT P.V., BERSANI D., LOTTICI P. P., BRÜNING R., J. Sol-Gel Sci. Tech., 24 (2002), 247.
• [8] GAO L., LI Q., SONG Z.,WANG J., Sensors and Actuators, B71 (2000), 179.
• [9] TAKAO Y., IWANAGA Y., SHIMIZU Y., EGASHIRA M., Sensors and Actuators, B10 (1993), 229.
• [10] KIMER U., SCHIERBAUM K. D., GÖPEL W., LEIBOLD B., NICOLOSO N.,WEPPNER W., FISHER D., CHU F., Sensors and Actuators, B1 (1990), 103.
• [11] SBERVEGLIERI G., DEPERO L. E., FERRONI M., GUIDI V.,MARTINELLI G., NELLI P., PEREGO C., SANGALETTI L., Adv. Mater., 8 (1996), 334.
• [12] MATSUDA A., KOTANI Y., KOGURE T., TATSUMISAGO M., MINAMI T., J.Am. Ceram. Soc., 83 (2000), 229.
• [13] Powder Diffraction File, ICDD, JCPDS, Swarthmore, PA, 1988 (Card Nos. 21-1272, 21-1276 and 29-1360).
• [14] BERTAUD E., International Tables for X-ray Crystallography, Kynoch Press, Birmingham, England, 1968, p. 318.
• [15] DJAOUED Y. , BRÜNING R., BERSANI D., LOTTICI P.P., BADILESCU S., Mater. Lett. in print.
• [16] SIFFERT B., LI J.F., Colloid. Surf., 40 (1989), 207.
• [17] PARKER J.C., SIEGEL R.W., J. Mater. Res., 5 (1990), 1246.
• [18] MATSUDA A., KATAYARNA S., TSUNO T., TOHGE N.,MINAMI T., J. Am. Ceram. Soc., 75 (1990), 2217.
• [19] BERSANI D., LOTTICI P.P., XING-ZHAO D., Appl. Phys. Lett., 72 (1998), 73.
• [20] IIDA Y., FURUKAWA M., KATO K.,MORIKAWA H., Appl. Spectr., 51 (1997), 673.
• [21] BERSANI D., ANTONIOLI G., LOTTICI P.P., LOPEZ T., J. Non-Cryst. Solids, 232–234 (1998), 175.
• [22] POTTIER A., CASSAIGNON S., CHANÉAC C., VILLAIN F., TRONC E., AND. JOLIVET J.-P, J. Mater. Chem., 13 (2003), 877.
• [23] BOBOVICH Y.S., TSENER M.Y., Opt. Spectrosc., 53 (1982), 332.
• [24] GAYNOR A.G., GONZALEZ R.J., DAVIS R.M., ZALLEN R., J. Matter. Res., 12 (1997), 1755.