Charge transfer in ZnO surfaces in the presence of photosensitizing dyes

作者: J. Lagowski , H. C. Gatos , C. L. Balestra

DOI: 10.1063/1.325162

关键词:

摘要: The charge transfer associated with the presence of photosensitizing dyes (fluorescein, erythrosin B, and rose bengal) was investigated on single‐crystal ZnO surfaces employing surface photovoltage spectroscopy. It found that takes place via electron transitions from to conduction band. energy necessary for these is transferred states excited dyes. were be related chemisorbed oxygen their density (2–4) ×1010/cm2 under atmospheric pressure at room temperature.

参考文章(21)
Nauchnyĭ sovet po problemam fotosinteza, Bertolʹd S. Neoporent, Elementary photoprocesses in molecules Consultants Bureau. ,(1968)
W.F. Berg, Current problems in electrophotography The Imaging Science Journal. ,vol. 19, pp. 158- 158 ,(1971) , 10.1080/00223638.1971.11737602
A. Terenin, I. Akimov, Some Experiments on the Photosensitization Mechanism of Semiconductors by Dyes1a The Journal of Physical Chemistry. ,vol. 69, pp. 730- 738 ,(1965) , 10.1021/J100887A004
J. Lagowski, H. C. Gatos, E. S. Sproles, Piezochemisorption effect: A new method for modulating the rate of chemisorption on polar crystals Applied Physics Letters. ,vol. 27, pp. 420- 422 ,(1975) , 10.1063/1.88515
M Vodenicharova, G.Hvedstrup Jensen, Photosensitization of ZnO single crystals by means of dyes Journal of Physics and Chemistry of Solids. ,vol. 36, pp. 1241- 1247 ,(1975) , 10.1016/0022-3697(75)90198-5
W. Bauer, G. Heiland, Spectral sensitization of photoconductivity on the surface of zinc oxide crystals under clean conditions Journal of Physics and Chemistry of Solids. ,vol. 32, pp. 2605- 2611 ,(1971) , 10.1016/S0022-3697(71)80106-3
Jacek Łagowski, Chester L. Balestra, Harry C. Gatos, Determination of surface state parameters from surface photovoltage transients: CdS Surface Science. ,vol. 29, pp. 203- 212 ,(1972) , 10.1016/0039-6028(72)90079-9
G. HEILAND, W. BAUER, M. NEUHAUS, SPECTRALLY SENSITIZED PHOTOCONDUCTIVITY OF ZINC OXIDE CRYSTALS Photochemistry and Photobiology. ,vol. 16, pp. 315- 324 ,(2008) , 10.1111/J.1751-1097.1972.TB06301.X
H. Kokado, T. Nakayama, E. Inoue, Enhanced electrical conduction in ZnO crystals by excited oxygen molecules Journal of Physics and Chemistry of Solids. ,vol. 32, pp. 2785- 2786 ,(1971) , 10.1016/S0022-3697(71)80372-4
H. Meier, Sensitization of Electrical Effects in Solids1 The Journal of Physical Chemistry. ,vol. 69, pp. 719- 729 ,(1965) , 10.1021/J100887A003