Nanostructured TiO2 films with 2 eV optical gaps

被引:139
作者
Barborini, E
Conti, AM
Kholmanov, I
Piseri, P
Podestà, A
Milani, P
Cepek, C
Sakho, O
Macovez, R
Sancrotti, M
机构
[1] Univ Milan, Dipartimento Fis, INFM, I-20133 Milan, Italy
[2] Univ Milan, CIMAINA, I-20133 Milan, Italy
[3] INFM, TASC, Lab Nazl, I-34012 Trieste, Italy
[4] Univ Cattolica Sacro Cuore, INFM, Dipartimento Matemat & Fis, I-25121 Brescia, Italy
关键词
D O I
10.1002/adma.200401169
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Nanostructured TiO2 (ns-TiO2) films obtained by supersonic cluster beam deposition possess highly porous, defective structures, and allow efficient incorporation of carbon-containing molecules during thermal treatment. Carbothermal reduction modifies the electronic structure of the ns-TiO2, narrowing the optical gap to 2 eV. This is within the range of visible solar radiation (see Figure), allowing more efficient photoconversion.
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页码:1842 / +
页数:6
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