Structural, Dielectric and Optical properties of Sputtered TiO2 nano-films

Thaidun, M.

doi:10.9790/4861-0424953

Cited by 4 publications

(1 citation statement)

References 21 publications

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“…In order to become promising photoanode in DSSC, some criteria are needed such as high surface area to provide sufficient light absorption, an adequate conduction band edge that matches the lowest unoccupied molecular orbital (LUMO) level of dye and fast electron transport for high DSSC efficiency [2]. To appraise the criteria required for TiO 2 , investigation of the properties of TiO 2 in different phases has been the subject of many experimental and theoretical studies [3][4][5][6][7]. Common polymorphs of TiO 2 occurs in three natural phases which are rutile, anatase and brookite.…”

Section: Introductionmentioning

confidence: 99%

First-Principles Study on Structural, Electronic and Optical Properties of TiO<sub>2</sub> for Dye-Sensitized Solar Cells Photoanode

Samat

Hussin

Taib

et al. 2016

MSF

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First-principles study based on density functional theory (DFT) framework for structural, electronic and optical properties of titanium dioxide (TiO2) in anatase and rutile phases are investigated. Anatase phase exhibits wide band gap compare to rutile phase. The partial and total density of states for TiO2 (anatase and rutile) describes the occupying of titanium (Ti) and oxygen (O) atoms at each energy level. TiO2 has a high dielectric constant to avoid the recombination process while its high refractive index provides the efficient of light diffusion. The optical absorption of TiO2 occurs in ultraviolet (UV) light of the wavelength photon. The results from the first-principles calculations will be helpful to give an understanding about the properties of TiO2 as promising photoanode in dye-sensitized solar cell (DSSC).

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