Electrical properties of TiO2 thin films

被引：119

作者：

Yildiz, A. ^{[1
]}

Lisesivdin, S. B. ^{[2
]}

Kasap, M. ^{[2
]}

Mardare, D. ^{[3
]}

机构：

[1] Ahi Evran Univ, Fac Sci & Arts, Dept Phys, TR-40040 Asikpasa Kampusu, Kirsehir, Turkey

[2] Gazi Univ, Fac Sci & Arts, Dept Phys, TR-06500 Ankara, Turkey

[3] Alexandru Ioan Cuza Univ, Fac Phys, Iasi 700506, Romania

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2008年 / 354卷 / 45-46期

关键词：

Conductivity; Variable-range hopping (VRH); TiO(2);

D O I：

10.1016/j.jnoncrysol.2008.07.009

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The electrical properties of n-type titanium dioxide thin films deposited by magnetron-sputtering method have been investigated by temperature-dependent conductivity. We observed that the temperature dependence of the electrical conductivity of titanium dioxide films exhibits a crossover from T(-1/4) to T(-1/2) dependence in the temperature range between 80 and 110 K. Characteristic parameters describing conductivity, such as the characteristic temperature (T(0)). hopping distance (R(hop)), average hopping energy (Delta(hop)), Coulomb gap (Delta(C)), localization length (xi) and density of states (N(E(F))), were determined, and their values were discussed within the models describing conductivity in TiO(2) thin films. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：4944 / 4947

页数：4

共 36 条

[1] CONDUCTION IN GRANULAR METALS - VARIABLE-RANGE HOPPING IN A COULOMB GAP [J].

ADKINS, CJ .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (07) :1253-1259

[2] ELECTRICAL-CONDUCTION IN HEAVILY DOPED GERMANIUM [J].

ALLEN, FR ;

ADKINS, CJ .

PHILOSOPHICAL MAGAZINE, 1972, 26 (04) :1027-&

[3] Novel electrochromic devices based on complementary nanocrystalline TiO2 and WO3 thin films [J].

Bonhôte, P ;

Gogniat, E ;

Grätzel, M ;

Ashrit, PV .

THIN SOLID FILMS, 1999, 350 (1-2) :269-275

[4] IMPURITY-BAND CONDUCTION IN HEAVILY DOPED N-TYPE GAAS [J].

CHAUDHURI, KD ;

MATHUR, PC ;

SAXENA, TK ;

BOTHRA, VB ;

MALHOTRA, AJ .

PHYSICAL REVIEW B, 1980, 21 (02) :767-770

[5] Characterization and dielectric properties of polyaniline-TiO2 nanocomposites [J].

Dey, A ;

De, S ;

De, A ;

De, SK .

NANOTECHNOLOGY, 2004, 15 (09) :1277-1283

[6] COULOMB GAP AND LOW-TEMPERATURE CONDUCTIVITY OF DISORDERED SYSTEMS [J].

EFROS, AL ;

SHKLOVSKII, BI .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1975, 8 (04) :L49-L51

[7] VARIABLE-RANGE HOPPING IN INDIUM-PHOSPHIDE [J].

FINLAYSON, DM ;

MASON, PJ .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1986, 19 (14) :L299-L301

[8] Ion implantation in TiO2:: damage production and recovery, lattice site location and electrical conductivity [J].

Fromknecht, R ;

Khubeis, I ;

Massing, S ;

Meyer, O .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1999, 147 (1-4) :191-201

[9] ELECTRONIC-PROPERTIES OF THE INTERFACE BETWEEN SI AND TIO2 DEPOSITED AT VERY LOW-TEMPERATURES [J].

FUYUKI, T ;

MATSUNAMI, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1986, 25 (09) :1288-1291

[10] Crossover from Mott to Efros-Shklovskii variable-range-hopping conductivity in conducting polyaniline [J].

Ghosh, M ;

Barman, A ;

De, SK ;

Chatterjee, S .

SYNTHETIC METALS, 1998, 97 (01) :23-29

← 1 2 3 4 →