Optical and electrical properties of aluminum doped zinc oxide thin films at various doping concentrations

Mamat, Mohamad Hafiz; Sahdan, Mohd Zainizan; Amizam, S.; Rafaie, H. A.; Khusaimi, Z.; Rusop, M.

doi:10.2109/jcersj2.117.1263

Cited by 31 publications

(10 citation statements)

References 13 publications

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“…Similar results are obtained by Mamat et al (2009) for Al-doped ZnO films. For doped films, the values of energy bandgap and Urbach energy are larger than those obtained for non-doped films.…”

Section: Optical Propertiessupporting

confidence: 89%

Influence of In doping on electro-optical properties of ZnO films

et al. 2013

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Thin metallic films of Zn and In/Zn were deposited onto glass substrates by thermal evaporation under vacuum. The metallic films were submitted to a thermal oxidation in air, at 623 K, for different oxidation times (30-90 min), in order to be oxidized. Structural and morphological analyses (X-ray diffraction, transmission electron microscopy and scanning electron microscopy) revealed that the obtained undoped and In-doped ZnO thin films possess a polycrystalline structure. Transmission spectra were recorded in spectral domain from 280 to 1400 nm. The influence of In doping and oxidation parameters as well, on the optical parameters (transmittance, optical bandgap, Urbach energy) were analysed. It was clearly evidenced that by In doping, the optical properties of ZnO films were improved. The temperature dependence of electrical conductivity was studied using surface-type cells with Ag electrodes. The obtained results indicate that In-doped ZnO films exhibit an enhancement of electrical conductivity with few orders of magnitude when compared with non-doped ones.

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Section: Optical Propertiessupporting

confidence: 89%

Influence of In doping on electro-optical properties of ZnO films

et al. 2013

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“…The crystallinity of this sample is also reduced, characterized by the broadening and intensity decrease in the XRD peak. In literature, broader and less intense ZnO diffraction peaks with the doping of Al was reported [40,41]. However, ZnO samples doped with Al change in crystallinity could be detected (Fig.…”

Section: Resultsmentioning

confidence: 79%

Rectifying ZnO–Na/ZnO–Al aerogels p-n homojunctions

Mukai

Bernardes

Müller

et al. 2022

J Mater Sci: Mater Electron

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Semiconductor ZnO aerogels were synthesized by a sol-gel process with different concentrations (2.5-7.5 wt.%) of Al (n-type) or Na (p-type) and dried under supercritical CO 2 . The materials were calcined at 500 °C to remove the organic content and to crystallize the ZnO. The microstructure of the ZnO-based aerogels comprises a porous structure with hexagonal and platelet-shaped interconnected particles. The bandgap of the aerogels doped with Al decreased significantly compared to pure, undoped ZnO aerogels, while their specific surface area increased. For the electrical characterization of the ZnO-Na/ZnO-Al junctions, the doped ZnO aerogels were deposited on commercial glass substrates coated with indium tin oxide (ITO) by drop casting method. The I-V curves of the p-n homojuntions revealed a characteristic diode rectifying behavior.

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“…In addition, the values of E0 in Fig. 1(b) show that films synthesized with high values of WTarget and PProcess have more structural disorder [17]. Moreover, it is obvious that long l1 and l2 in Fig.…”

Section: Parallel Coordinatesmentioning

confidence: 92%

Exploring high-dimensional data space: Identifying optimal process conditions in photovoltaics

Suh

Biagioni

Glynn

et al. 2011

2011 37th IEEE Photovoltaic Specialists Conference

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We demonstrate how advanced exploratory data analysis coupled to data-mining techniques can be used to scrutinize the high-dimensional data space of photovoltaics in the context of thin films of Al-doped ZnO (AZO), which are essential materials as a transparent conducting oxide (TCO) layer in CuInxGa1-xSe2 (CIGS) solar cells. AZO data space, wherein each sample is synthesized from a different process history and assessed with various characterizations, is transformed, reorganized, and visualized in order to extract optimal process conditions. The data-analysis methods used include parallel coordinates, diffusion maps, and hierarchical agglomerative clustering algorithms combined with diffusion map embedding.

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Optical and electrical properties of aluminum doped zinc oxide thin films at various doping concentrations

Cited by 31 publications

References 13 publications

Influence of In doping on electro-optical properties of ZnO films

Influence of In doping on electro-optical properties of ZnO films

Rectifying ZnO–Na/ZnO–Al aerogels p-n homojunctions

Exploring high-dimensional data space: Identifying optimal process conditions in photovoltaics

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