نتایج جستجو برای: cobalt doped zno

تعداد نتایج: 94526  

2017
Xue Zhang Hyeonju Lee Jung-Hyok Kwon Eui-Jik Kim Jaehoon Park

We investigated the influence of low-concentration indium (In) doping on the chemical and structural properties of solution-processed zinc oxide (ZnO) films and the electrical characteristics of bottom-gate/top-contact In-doped ZnO thin-film transistors (TFTs). The thermogravimetry and differential scanning calorimetry analysis results showed that thermal annealing at 400 °C for 40 min produces...

Journal: :Acta Physica Polonica A 2022

Pure, Mg-doped and Co-doped ZnO nanostructures were grown by atmospheric pressure metal-organic chemical vapor deposition. The influence of magnesium cobalt contained in on microstructure, cytotoxicity, virucidal antibacterial activities under non-irradiated conditions was investigated. incorporation Mg Co impurities into the crystal lattice modifies their electronic structure, surface morpholo...

2013
Ghusoon M. Ali Cody V. Thompson Ali K. Jasim Isam M. Abdulbaqi James C. Moore

Three methods were used to fabricate ZnO-based room temperature liquid petroleum gas (LPG) sensors having interdigitated metal-semiconductor-metal (MSM) structures. Specifically, devices with Pd Schottky contacts were fabricated with: (1) un-doped ZnO active layers; (2) Pd-doped ZnO active layers; and (3) un-doped ZnO layers on top of Pd microstructure arrays. All ZnO films were grown on p-type...

Journal: :Nano letters 2007
Bin Xiang Pengwei Wang Xingzheng Zhang Shadi A Dayeh David P R Aplin Cesare Soci Dapeng Yu Deli Wang

We report, for the first time, the synthesis of the high-quality p-type ZnO NWs using a simple chemical vapor deposition method, where phosphorus pentoxide has been used as the dopant source. Single-crystal phosphorus doped ZnO NWs have their growth axis along the 001 direction and form perfect vertical arrays on a-sapphire. P-type doping was confirmed by photoluminescence measurements at vario...

Journal: :ACS applied materials & interfaces 2015
Mohammad Suja Sunayna B Bashar Muhammad M Morshed Jianlin Liu

Cu-doped p-type ZnO films are grown on c-sapphire substrates by plasma-assisted molecular beam epitaxy. Photoluminescence (PL) experiments reveal a shallow acceptor state at 0.15 eV above the valence band edge. Hall effect results indicate that a growth condition window is found for the formation of p-type ZnO thin films, and the best conductivity is achieved with a high hole concentration of 1...

Journal: :American journal of dentistry 2015
César Pomacóndor-Hernández Raquel Osorio Fátima S Aguilera Inmaculada Cabello Mario De Goes Manuel Toledano

PURPOSE To evaluate changes in the physicochemical properties, water sorption (WS), solubility (SO), modulus of elasticity (E), ultimate tensile strength (UTS), and microhardness (MH) tests were undertaken in zinc-doped dental adhesives. METHODS Two bonding resins, Adper Single Bond Plus (SB) and Clearfil SE Bond (SEB), were zinc-doped by mixing them with 5, 10 or 20 wt% of ZnO powder, or wit...

2018
Qianni Zhang Ruizhi Peng Chunfu Zhang Dazheng Chen Zhenhua Lin Jingjing Chang Jincheng Zhang Yue Hao

The aqueous-based Zn-ammine complex solutions represent one of the most promising routes to obtain the ZnO electron transport layer (ETL) at a low temperature in inverted organic solar cells (OSCs). However, to dope the ZnO film processed from the Zn-ammine complex solutions is difficult since the introduction of metal ions into the Zn-ammine complex is a nontrivial process as ammonium hydroxid...

2017
R. J. RAMALINGAM J. VIJAYA H. A. AL-LOHEDAN M. A. MUNUSAMY

Zinc oxide and Ga-doped ZnO nanowires and nanorods are synthesized on various substrate like Fluorine doped tin oxide glass plate, SiO2 coated Silicon substrate and aluminum nitride coated silicon substrates. The coating process carried out using zinc oxide sol-gel solution. The synthesized material was characterized using XRD (X-ray diffraction), FE-SEM (Field emission scanning electron micros...

Journal: :iranian journal of catalysis 2015
maryam bordbar seyed mohammad vasegh somaye jafari ali yeganeh faal

undoped and mn-doped zno nanoparticles were successfully prepared by the hydrothermal method with different annealing temperature conditions. structural, chemical and optical properties of the samples were studied by x-ray diffraction (xrd), field emission scanning electron microscopy (fesem), uv-vis spectrophotometry and fourier transform infrared (ft-ir) spectroscopy. the phase purity was con...

2012
Partha P. Pal

This paper reports the photoluminescence studies of Eu (RE)-doped ZnO nanophosphors synthesized by precipitation method using ethanolic solution as solvent. The prepared samples are characterized by a Philips Holland TW 1710 XRD measuring instrument with Co target. The ZnO structure is found to be wurtzite. The particle sizes are found to be in the range of 70 nm to 90 nm. The prominent peaks f...

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