Magnetic and Electrical Properties of Undoped and Holmium Doped ZnO Thin Films Grown by Sol-Gel Method

Undoped and holmium-doped ZnO thin films were obtained, using the sol-gel method. The films were characterized by scanning electron microscopy (SEM), Hall effect measurements, electron paramagnetic resonance (EPR) spectroscopy and superconducting quantum interference device vibrating sample magnetometry (SQUID-VSM). The Hall effect measurements have indicated a n-type conduction with a resistivity of about 3.2 Ω.cm for the undoped ZnO and of about 4.5 Ω.cm for the 5 at. % Ho-doped ZnO thin films. The EPR measurements have indicated the presence of interstitial zinc in the undoped ZnO and the presence of zinc vacancies in 5 at. % Ho-doped ZnO. Ho (5 at. %)-doped ZnO films exhibit superparamagnetism at 5 K, while a low paramagnetic behavior was observed at room temperature.

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Effect of Ruthenium Concentration on Structural and I-V Characteristics of ZnO Thin Films by Sol–Gel Method

Journal of Molecular and Engineering Materials ◽

10.1142/s2251237317500046 ◽

2017 ◽

Vol 05 (01) ◽

pp. 1750004

Author(s):

R. Vettumperumal ◽

S. Kalyanaraman ◽

R. Thangavel

Keyword(s):

Thin Films ◽

Sol Gel ◽

Zno Thin Films ◽

Zno Films ◽

X Ray Diffraction ◽

Axis Orientation ◽

Gel Method ◽

X Ray ◽

Sol Gel Method ◽

Doped Zno

Nanocrystalline ruthenium (Ru)-doped ZnO thin films on sapphire substrate was prepared using sol–gel method by spin coating technique. The structural and I-V characteristics of Ru doped ZnO thin films were studied from the X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM) analysis and Raman spectroscopy. X-ray diffraction (XRD) results revealed that the deposited films belonged to hexagonal wurtzite structure with c-axis orientation. It is also confirmed from the Raman spectra. Enhancement of longitudinal optical (LO) phonon is observed by the strong electron–phonon interaction. An observed increment in sheet resistance with increase in dopant percentage of Ru (1–2[Formula: see text]mol%) in ZnO films was found and better I-V characteristic behavior was observed at 1[Formula: see text]mol% of Ru-doped ZnO thin films. Trap limited current flow inside the material was calculated from the log I versus log V plot in the higher voltage region.

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Electrical and optical properties of Sb-doped ZnO thin films synthesized by sol–gel method

Chinese Physics B ◽

10.1088/1674-1056/23/4/047805 ◽

2014 ◽

Vol 23 (4) ◽

pp. 047805 ◽

Cited By ~ 2

Author(s):

Meng-Meng Cao ◽

Xiao-Ru Zhao ◽

Li-Bing Duan ◽

Jin-Ru Liu ◽

Meng-Meng Guan ◽

...

Keyword(s):

Thin Films ◽

Optical Properties ◽

Sol Gel ◽

Zno Thin Films ◽

Electrical And Optical Properties ◽

Gel Method ◽

Sol Gel Method ◽

Doped Zno

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Preparation of Al- and Li-Doped ZnO Thin Films by Sol-Gel Method

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.181-182.109 ◽

2000 ◽

Vol 181-182 ◽

pp. 109-112 ◽

Cited By ~ 9

Author(s):

Shinobu Fujihara ◽

Chikako Sasaki ◽

Toshio Kimura

Keyword(s):

Thin Films ◽

Sol Gel ◽

Zno Thin Films ◽

Gel Method ◽

Sol Gel Method ◽

Doped Zno

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Al-doped ZnO thin films by sol–gel method

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2003.10.112 ◽

2004 ◽

Vol 180-181 ◽

pp. 659-662 ◽

Cited By ~ 179

Author(s):

V Musat ◽

B Teixeira ◽

E Fortunato ◽

R.C.C Monteiro ◽

P Vilarinho

Keyword(s):

Thin Films ◽

Sol Gel ◽

Zno Thin Films ◽

Gel Method ◽

Sol Gel Method ◽

Doped Zno

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Preparation and photocatalytic activity of Cu-doped ZnO thin films prepared by the sol–gel method

Applied Surface Science ◽

10.1016/j.apsusc.2012.05.021 ◽

2012 ◽

Vol 258 (20) ◽

pp. 8192-8198 ◽

Cited By ~ 112

Author(s):

P. Jongnavakit ◽

P. Amornpitoksuk ◽

S. Suwanboon ◽

N. Ndiege

Keyword(s):

Thin Films ◽

Photocatalytic Activity ◽

Sol Gel ◽

Zno Thin Films ◽

Gel Method ◽

Sol Gel Method ◽

Doped Zno

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Studying on Preparation of AZO Thin Films with Sol-Gel Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.152-153.868 ◽

2010 ◽

Vol 152-153 ◽

pp. 868-873 ◽

Cited By ~ 1

Author(s):

Xiu Ling Lv ◽

Yu Bo Dou ◽

Juan Wang ◽

Ying Xu

Keyword(s):

Thin Films ◽

Optical Properties ◽

Sol Gel ◽

Treatment Temperature ◽

Zno Films ◽

Gel Method ◽

Sol Gel Method ◽

Crystallization Properties ◽

Doped Zno ◽

Micro Morphology

Al doped ZnO thin films（AZO films） was prepared by sol-gel method. The influence of Parameters of different processes on the crystallization properties, micro-morphology and optical properties of this kind of films were studied, using by X-ray diffractometer, filed emission stereoscan, spectral photometer, hall admeasuring apparatus. The results indicated that the crystallization properties, micro-morphology and optical properties of Al doped ZnO films were best on the condition that the sol density was 0.5mol/L, hat treatment temperature is 600 and there is a 8-layer coating.

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