ELECTRICAL AND OPTICAL-PROPERTIES OF POROUS NANOCRYSTALLINE TIO2 FILMS

被引：181

作者：

CAO, F

OSKAM, G

SEARSON, PC

STIPKALA, JM

HEIMER, TA

FARZAD, F

MEYER, GJ

机构：

[1] JOHNS HOPKINS UNIV,DEPT MAT SCI & ENGN,BALTIMORE,MD 21218

[2] JOHNS HOPKINS UNIV,DEPT CHEM,BALTIMORE,MD 21218

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1995年 / 99卷 / 31期

关键词：

D O I：

10.1021/j100031a027

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The optical and electrochemical properties of nanocrystalline TiO2 electrodes in acidic aqueous solution are reported. Cyclic voltammetry, UV/vis/NIR attenuance, EPR, photocurrent spectroscopy, and electrochemical impedance measurements are presented. At negative applied potentials the TiO2 films turn black, and an EPR spectrum appears which we attribute to Ti(III) species. The results are described in terms of a model in which the reduction of TiO2 leads to band edge unpinning.

引用

页码：11974 / 11980

页数：7

共 71 条

[21] Finklea H. O., 1988, SEMICONDUCTOR ELECTR
[22] USING SPECTROSCOPY TO PROBE THE BAND ENERGETICS OF TRANSPARENT NANOCRYSTALLINE SEMICONDUCTOR-FILMS
FITZMAURICE, D
[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1994, 32 (03) : 289 - 305
[23] THE IMPACT OF SEMICONDUCTORS ON THE CONCEPTS OF ELECTROCHEMISTRY
GERISCHER, H
[J]. ELECTROCHIMICA ACTA, 1990, 35 (11-12) : 1677 - 1699
[24] HYDROGEN IN TIO2 PHOTOANODES
GINLEY, DS
KNOTEK, ML
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1979, 126 (12) : 2163 - 2166
[25] PROPERTIES OF RUTILE (TITANIUM DIOXIDE)
GRANT, FA
[J]. REVIEWS OF MODERN PHYSICS, 1959, 31 (03) : 646 - 674
[26] BANDGAP AT THE NORMAL-TIO2 ELECTROLYTE INTERFACE
GUTIERREZ, C
SALVADOR, P
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1982, 138 (02): : 457 - 463
[27] FAST ELECTROCHROMIC SWITCHING WITH NANOCRYSTALLINE OXIDE SEMICONDUCTOR-FILMS
HAGFELDT, A
VLACHOPOULOS, N
GRATZEL, M
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (07) : L82 - L84
[28] THE INFLUENCE OF PREPARATION ON SEMICONDUCTING RUTILE (TIO2)
HARRIS, LA
SCHUMACHER, R
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1980, 127 (05) : 1186 - 1188
[29] CHARACTERIZED SEMICONDUCTOR ELECTRODES .2. ROOM-TEMPERATURE DIFFUSION IN A SINGLE-CRYSTAL RUTILE ELECTRODE
HARRIS, LA
GERSTNER, ME
WILSON, RH
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1979, 126 (05) : 850 - 855
[30] MOLECULAR-LEVEL PHOTOVOLTAICS - THE ELECTROOPTICAL PROPERTIES OF METAL CYANIDE COMPLEXES ANCHORED TO TITANIUM-DIOXIDE
HEIMER, TA
BIGNOZZI, CA
MEYER, GJ
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (46) : 11987 - 11994

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