Effect of NaOH solution on surface textured ZnO: Al films prepared by pulsed direct current magnetron sputtering

Wang, Ying; Wang, Hualin; Liu, Chaoqian; Wang, Yun; Peng, Shou; Chai, Weiping

doi:10.1016/j.mssp.2012.04.007

Cited by 8 publications

(3 citation statements)

References 24 publications

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“…They are also among the most important transparent conductive oxide (TCO) materials [9]. ZnO thin films have been deposited by such different methods as sputtering techniques [10][11][12], metal oxide chemical vapor deposition (MOCVD) [13], molecular beam epitaxy (MBE) [14], pulsed laser deposition [15], sol-gel processing [16,17], and spray pyrolysis [18]. Among these methods, the spray pyrolysis method has attracted the especially great attention among researchers due to its simpler mechanism, low setup costs, and ability to spray large areas [19].…”

Section: Introductionmentioning

confidence: 99%

Room-temperature BTEX sensing characterization of nanostructured ZnO thin films

Nagaraju

Vijayakumar

Reddy

2019

Journal of Asian Ceramic Societies

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Nanostructured zinc oxide (ZnO) thin films were deposited on glass substrates using various molar concentrations of zinc acetate dihydrate as the starting precursor at 400°C by the spray pyrolysis technique. The structural, morphological, and optical properties of the samples were investigated. X-ray diffraction studies showed thin films with a polycrystalline nature of the hexagonal wurtzite phase type. The preferred orientation was observed along the (002) direction. The crystallite size increased from 16.18nm to 20.42nm with increases in the molar concentration from 0.1M to 0.3M and then decreased further to 17.85nm at a molar concentration of 0.4M. SEM micrographs showed significant changes in the zinc oxide thin films with increases in the molar concentration of the precursor. Room-temperature Raman spectra confirmed typical electron-phonon coupling in the ZnO thin films. The optical band gap of the zinc oxide thin films was calculated using the Tauc plot. The sensitivity and selectivity of such toxic volatile organic vapors as benzene, toluene, ethylbenzene, and xylene (BTEX) were studied at room-temperature and reported.

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Section: Introductionmentioning

confidence: 99%

Room-temperature BTEX sensing characterization of nanostructured ZnO thin films

Nagaraju

Vijayakumar

Reddy

2019

Journal of Asian Ceramic Societies

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“…However, the etching process and surface morphology are difficult to control because of the high etching rate of HCl solution. In our previous research work [14], in order to control the etching process and the surface morphology effectively, NaOH solution was employed to etch the AZO films, and the typical crater-like textured structures of AZO films were obtained successfully. It is acknowledged that the optimum surface textured structure strongly depends on the deposition conditions.…”

Section: Introductionmentioning

confidence: 99%

Light trapping properties of surface textured ZnO:Al films deposited at various working pressures

Wang

Ding

Jiang

et al. 2015

Ceramics International

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“…The last one exhibits the advantage of improving the scattering ability without sacrificing the optoelectronic properties [21]. Recently, post treatment by chemical wet-etching has been reported to fabricate texture surface, such as the utilization of HCl [22,23], HF [24], NaOH [25]and NH 4 Cl [26,27].However, the etching rate is too fast to control for the sake of the easy etch-ability of AZO films [28]. Up to now, many attempts have been undertaken with a controllable etching rate, such as a two-step etching process by high and low concentration alternately [21] or the combined utilization of the two kinds of acid [29].…”

Section: Introductionmentioning

confidence: 99%