Spetroscopic ellipsometry study on electrical and elemental properties of Sb-doped ZnO thin films

Pandey, Sushil; Awasthi, Vishnu; Verma, Shruti; Gupta, Mukul; Mukherjee, Shaibal

doi:10.1016/j.cap.2015.02.008

Cited by 25 publications

(13 citation statements)

References 34 publications

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“…For the analysis and interpretation of ZnO and AZO thin films and optical properties, a multilayer model was used, in which the substrate was silicon (from the program library), and the investigated layer was fit using the general oscillator (GO) model. To obtain the dispersion relationships of optical constants n and k in oxides, the most popular model is the Cauchy model (the simplest model for nonabsorbing layers) [41]; oxide layers are also modeled using the Tanguy model [42], the Drude model [43] and the oscillator model [44,45]. Two Tauc-Lorentz oscillators were used [46].…”

Section: ⎯⎯ 2 + 2 +mentioning

confidence: 99%

Application Properties of ZnO and AZO Thin Films Obtained by the ALD Method

et al. 2021

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The thin layers of ZnO and ZnO: Al (Al doped zinc oxide—AZO) were deposited by the atomic deposition layer (ALD) method on silicon and glass substrates. The structures were deposited using diethylzinc (DEZ) and deionized water as zinc and oxygen precursors. A precursor of trimethylaluminum (TMA) was used to introduce the aluminum dopant. The present study of ALD-deposited ZnO and AZO films was motivated by their applications in photovoltaics. We attempted to expose several properties of such films. Structural, optical (including ellipsometric measurements) and electrical investigations were performed. We discussed the relations between samples doped with different Al fractions and their properties.

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Section: ⎯⎯ 2 + 2 +mentioning

confidence: 99%

Application Properties of ZnO and AZO Thin Films Obtained by the ALD Method

et al. 2021

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“…Investigated dyes have broad absorption spectra, overlapping with the spectrum of sunlight, which makes it suitable for use as a donor element. Dyes were previously simulated using the Cauchy model [ 39 ] and EMA-layer [ 40 ], however, for the compounds under consideration, the oscillator model [ 41 , 42 ] was chosen because of the broad absorption band.…”

Section: Discussionmentioning

confidence: 99%

Investigation of Dye Dopant Influence on Electrooptical and Morphology Properties of Polymeric Acceptor Matrix Dedicated for Ternary Organic Solar Cells

et al. 2021

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The publication presents the results of investigations of the influence of dye dopant on the electrooptical and morphology properties of a polymeric donor:acceptor mixture. Ternary thin films (polymer:dye:fullerene) were investigated for potential application as an active layer in organic solar cells. The aim of the research is to determine the effect of selected dye materials (dye D131, dye D149, dye D205, dye D358) on the three-component layer and their potential usefulness as an additional donor in ternary cells, based on P3HT donor and PC71BM acceptor. UV–vis spectroscopy studies were performed, and absorption and luminescence spectra were determined. Ellipsometry parameters for single dye and ternary layers have been measured. The analyses were performed using the Raman spectroscopy method, and the Raman spectra of the mixtures and single components have been determined. Organic layers were prepared and studied using scanning electron microscope and atomic force microscope. For dyes, ultraviolet photoelectron spectroscopy and X-ray photoelectron spectroscopy studies were carried out and the ternary system was presented and analyzed in terms of energy bands.

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“…For further device optimization, such as designs for waveguide using InAlAs cladding layers [6], the complex refractive indexñ ¼ n þ ik and dielectric function ε ¼ñ 2 ¼ ε 1 þ iε 2 are needed. A few studies of the dielectric functions of In x Al 1Àx As alloys have been reported using spectroscopic ellipsometry (SE) [7,8], which is an excellent technique for determining ε data directly [9,10]. However, no analytic representations of these ε spectra as a continuous function of In-composition x have been reported to date.…”

Section: Introductionmentioning

confidence: 98%