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

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.

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

2013 ◽  
Vol 8-9 ◽  
pp. 301-308 ◽  
Author(s):  
Mihaela Popa ◽  
Guy Schmerber ◽  
Dana Toloman ◽  
Mihai S. Gabor ◽  
Amalia Mesaros ◽  
...  
Keyword(s):  
Thin Films ◽  
Hall Effect ◽  
Quantum Interference ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Zno Films ◽  
Gel Method ◽  
Sol Gel Method ◽  
Hall Effect Measurements ◽  
Doped Zno

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.

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

2014 ◽  
Vol 23 (4) ◽  
pp. 047805 ◽  
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

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

2000 ◽  
Vol 181-182 ◽  
pp. 109-112 ◽  
Author(s):  
Shinobu Fujihara ◽  
Chikako Sasaki ◽  
Toshio Kimura
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Gel Method ◽  
Sol Gel Method ◽  
Doped Zno

Magnetic Properties of Bulk Zn0.95-XMnXFe0.05O2 Prepared by Sol-Gel Method and Subsequent Hot Pressing

2011 ◽  
Vol 268-270 ◽  
pp. 356-359 ◽  
Author(s):  
Wen Song Lin ◽  
C. H. Wen ◽  
Liang He
Keyword(s):  
Magnetic Properties ◽  
Photoelectron Spectroscopy ◽  
Raw Materials ◽  
Sol Gel ◽  
Secondary Phase ◽  
X Ray Diffraction ◽  
Gel Method ◽  
X Ray ◽  
Sol Gel Method ◽  
Doped Zno

Mn, Fe doped ZnO powders (Zn0.95-xMnxFe0.05O2, x≤0.05) were synthesized by an ameliorated sol-gel method, using Zn(CH3COO)2, Mn(CH3COO)2and FeCl2as the raw materials, with the addition of vitamin C as a kind of chemical reducer. The resulting powder was subsequently compacted under pressure of 10 MPa at the temperature of 873K in vacuum. The crystal structure and magnetic properties of Zn0.95-xMnxFe0.05O2powder and bulk samples have been investigated by X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). X-ray photoelectron spectroscopy (XPS) was used to study chemical valence of manganese, iron and zinc in the samples. The x-ray diffraction (XRD) results showed that Zn0.95-xMnxFe0.05O (x≤0.05) samples were single phase with the ZnO-like wurtzite structure. No secondary phase was found in the XRD spectrum. X-ray photoelectron spectroscopy (XPS) showed that Fe and Mn existed in Zn0.95-xMnxFe0.05O2samples in Fe2+and Mn2+states. The results of VSM experiment proved the room temperature ferromagnetic properties (RTFP) of Mn, Fe co-doped ZnO samples.

Al-doped ZnO thin films by sol–gel method

2004 ◽  
Vol 180-181 ◽  
pp. 659-662 ◽  
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

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

2012 ◽  
Vol 258 (20) ◽  
pp. 8192-8198 ◽  
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

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

2010 ◽  
Vol 152-153 ◽  
pp. 868-873 ◽  
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.

scholarly journals Study of Undoped and Indium Doped ZnO Thin Films Deposited by Sol Gel Method

Silicon ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 2577-2584 ◽  
Author(s):  
M. Medjaldi ◽  
O. Touil ◽  
B. Boudine ◽  
M. Zaabat ◽  
O. Halimi ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Gel Method ◽  
Sol Gel Method ◽  
Doped Zno
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