Photocatalysis of sculptured thin films of TiO{sub 2}

Journal Article · Mon Jun 18 04:00:00 EDT 2001 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.1380730· OSTI ID:40204525

Suzuki, Motofumi; Ito, Tadayoshi; Taga, Yasunori

Enhanced surface reaction efficiency has been demonstrated in the photocatalysis of obliquely deposited TiO{sub 2} thin films with variously shaped columns such as zigzag, cylinder, and helix. The columnar thickness and spacing play an important role in the enhancement of the effective surface area, while the columnar shape is less important. The optimum morphology for a surface reaction has been obtained at the deposition angle {alpha}=70{degree}, where the photocatalytic activity is 2.5 times larger than that at {alpha}=0{degree}. The morphology controlled obliquely deposited thin films are applicable for solar cell, electro- and photochromic devices besides photocatalyst. {copyright} 2001 American Institute of Physics.

• Sponsoring Organization: (US)
• OSTI ID: 40204525
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 25 Vol. 78; ISSN 0003-6951
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
DEPOSITION
EFFICIENCY
MORPHOLOGY
PHYSICS
SHAPE
SOLAR CELLS
SURFACE AREA
THICKNESS
THIN FILMS