Ellipsometric Investigation of Room Temperature Grown Highly-Oriented Anatase TiO2 Thin Films

Jaiswal, Jyoti; Mourya, Satyendra; Malik, Gaurav

doi:10.1007/s11664-018-06872-2

Cited by 16 publications

(8 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[ 29,31 ] This could be due to the deformation in the film surfaces [ 65 ] as a consequence of the strain reported earlier by Jaiswal et al. [ 57 ] In addition, large oscillations are observed in TNO5 as compared to other samples indicating a large negative correlation between surface heights. The lateral correlation or autocorrelation length is defined as the length at which the autocorrelation function is reduced to 1/e of its original value.…”

Section: Resultsmentioning

confidence: 97%

“…Mountains Map 8 premium software (trial version) was utilized for topographical analysis of the thin films. [ 57 ] The spatial, height, hybrid, functional (volume), feature, and Sk parameters were analyzed following ISO 25178‐2:2012 standard. [ 58 ] The 3D representation of AFM images for the investigated anatase thin‐film surfaces is shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

“…In addition, the linear refractive index in the visible region of the electromagnetic spectrum was measured using the ellipsometry data. [ 57 ] The variation in refractive index at 540 and 632 nm wavelength with fractal dimension and RMS surface slope is shown in Figure 7c,d, individually.…”

Section: Resultsmentioning

confidence: 99%

“…The films were deposited with varying working pressure and at optimized constant Ar:O 2 flow rate and sputtering power of 70:10 sccm and 80 W, respectively. The comprehensive details regarding the experiment, characterization, and optical parameters measurement were reported previously by Jaiswal et al [57]…”

Section: Methodsmentioning

confidence: 99%

“…The comprehensive details regarding the experiment, characterization, and optical parameters measurement were reported previously by Jaiswal et al. [ 57 ]…”

Section: Methodsmentioning

confidence: 99%

See 4 more Smart Citations

Correlating the Nonlinear Roughening and Optical Properties of Anatase Thin Films—A Fractal Geometric Approach

Das

Jaiswal

Borah

et al. 2023

Advcd Theory and Sims

Self Cite

View full text Add to dashboard Cite

The anatase phase of TiO2 is highly suitable for photocatalytic application consequently, prerequisite an unpretentious scale‐independent understanding of its roughening‐facilitated surface topography dynamics. Herein, the nonlinear roughening in anatase thin films and its correlation with the nonlinear trend of optical properties in the framework of fractal geometry are investigated. The self‐affine nature of analyzed surfaces is confirmed from the autocorrelation function. The dynamic scaling exponents indicate the existence of Kardar–Parisi–Zhang scaling in surface growth. In addition, the trend of generalized Hurst exponent and mass exponent indicates insignificant multifractal characteristics in the analyzed surfaces. Moreover, fractal analysis explains and aids to description of roughening trend from stereometric and Minkowski functionals analysis. Furthermore, the significance of fractal dimension for probing the surface roughening is validated from the principal component analysis. Consequently, variation in optical bandgap and linear refractive index are investigated in regards to the fractal dimension and root mean‐squared surface slope and regression equations are proposed for tuning of bandgap.

show abstract

Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The comprehensive details regarding the experiment, characterization, and optical parameters measurement were reported previously by Jaiswal et al. [ 57 ]…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations