☆ 4.3 Article

Composition Dependence on Structural and Optical Properties of MgxZn1-xO Thin Films Prepared by Sol-Gel Method

BULLETIN OF THE KOREAN CHEMICAL SOCIETY (2011)

期刊

BULLETIN OF THE KOREAN CHEMICAL SOCIETY

卷 32, 期 9, 页码 3453-3458

出版社

KOREAN CHEMICAL SOC

DOI: 10.5012/bkcs.2011.32.9.3453

关键词

Magnesium; Zinc oxide; Sol-gel method; X-ray diffraction; Photoluminescence

类别

Chemistry, Multidisciplinary

资金

National Research Foundation of Korea (NRF)
Ministry of Education, Science and Technology [2011-0003067]

向作者/读者索取更多资源

Protocol

Reagent

摘要

The MgxZn1-xO thin films with the various content ratio ranging from 0 to 0.4 were prepared by sol-gel spin-coating method. To investigate the effects of content ratio on the structural and optical properties of the MgxZn1-xO thin films, scanning electron microscopy (SEM), X-ray diffraction (XRD), and photoluminescence (PL) were carried out. With increase in the content ratio, the grain size of the MgxZn1-xO thin films was increased, however, at the content ratio above 0.2, MgO particles with cubic structure were formed on the surface of the MgxZn1-xO thin films, indicating that the Mg content exceeded its solubility limit in the thin films. The residual stress of the MgxZn1-xO thin films is increased with increase in the Mg mole fraction. In the PL investigations, the bandgap and the activation energy of the MgxZn1-xO thin films was increased with the Mg mole fraction.

作者

我是这篇论文的作者

点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.3

评分不足

次要评分

新颖性

-

重要性

-

科学严谨性

-

评价这篇论文

推荐

Article Polymer Science

Characterization of Pure and Al Doped ZnO Thin Films Prepared by Sol Gel Method for Solar Cell Applications

M. A. Bouacheria, A. Djelloul, M. Adnane, Y. Larbah, L. Benharrat

Summary: ZnO and AZO thin films were prepared on glass substrates with different Al concentrations, showing changes in crystallite size and optical properties with increasing Al doping. The film doped with 1 at.% Al exhibited high emission intensity and potential for solar cell applications.

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS (2022)

添加到收藏夹

Article Chemistry, Physical

Thermal processing conditions for the synthesis of near theoretical density Li5La3Ta2O12 ceramics for ceramic dual-mode detectors

Joshua P. Smith, Kurt E. Sickafus, Claudia J. Rawn, Cordell Delzer, Ching-Fong Chen, Charles Melcher

Summary: Li-containing garnet compounds have potential as transparent ceramic dual-mode scintillators, with Li5La3Ta2O12 showing promise due to its properties. This study focused on establishing thermal processing conditions for a sol-gel method and consolidating powders to form high-density ceramics. The experiments showed the presence of two cubic Li5La3Ta2O12 garnet phases with different lattice parameters, indicating a remaining excess of Li in the ceramics.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

添加到收藏夹

Article Physics, Multidisciplinary

Eco-friendly Green Synthesis of stable ZnO nanoparticles using citrus limon: X-Ray Diffraction Analysis and Optical Properties

Anamika Kem, Mohd Rehan Ansari, P. Prathap, M. Jayasimhadri, Koteswara Rao Peta

Summary: Eco-friendly stable ZnO nanoparticles were successfully synthesized using citrus limon as a chelating agent. The structural and optical properties of the nanoparticles were studied at different annealing temperatures. The results showed that the particle size increased due to agglomeration or Ostwald ripening at high temperature, and the crystallite size and bandgap also increased slightly. The emission peaks of the nanoparticles were analyzed and attributed to the near band edge emission and the transition of electrons from traps to the valence band.

PHYSICA SCRIPTA (2022)

添加到收藏夹

Article Materials Science, Multidisciplinary

Synthesis of Nickel-doped Magnesium spinel ferrites (NixMg1-xFe2O4) nanomaterials and study of their structural, electrical and magnetic properties

Syed Zia Hussain Hashmi, Muhammad Khalid, Ghulam Mustafa, Muhammad Gul Bahar Ashiq, Muhammad Younas, Ahsan Quddus, Hisham S. M. Abd-Rabboh, Thamraa Alshahrani, Kiran Naz, M. Mohamed Javid

Summary: The Solution-gelation self-ignition method was used to synthesize Nickel-doped Magnesium ferrite (MgFe2O4) nanoparticles with tunable dielectric and magnetic properties. The effect of nickel on crystal structure, crystallite size, dielectric properties, and magnetic properties was investigated. Various characterization techniques were employed, including XRD, FTIR, TEM, and VSM, to analyze the structure, size, and properties of the synthesized nanoparticles. The dielectric studies suggested potential applications of the Mg1-xNix-Fe2O4 nanoparticles in microwave devices.

MATERIALS CHEMISTRY AND PHYSICS (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

The effects of the post-annealing with a Zn cap on the structural and electrical properties of sol-gel derived MgxZn1-xO films

Koji Abe, Yasuhiro Morimoto

Summary: The post-annealing with supplying Zn vapor improved the crystallinity and electrical properties of Al-doped MgxZn1-xO films. Films treated with a Zn cap during post-annealing showed significantly increased resistivity and carrier concentration, with an optical bandgap of 3.41 eV.

MATERIALS RESEARCH EXPRESS (2021)

添加到收藏夹

Article Chemistry, Physical

Cobalt, nickel and copper doped non-stoichiometric cadmium gallate as a prominent magnetic and photocatalytic material

Pankaj Gupta, Richa Tomar, Mohit Sahni, Sunil Chauhan

Summary: Cobalt, nickel, and copper doped non-stoichiometric CdGa2O4 were synthesized and characterized using various techniques. The doped samples showed both antiferromagnetic and ferromagnetic behavior, and the transition metal doping also promoted the photodegradation of methylene blue and Rhodamine B dye.

CHEMICAL PHYSICS (2022)

添加到收藏夹

Article Biochemistry & Molecular Biology

Husk-like Zinc Oxide Nanoparticles Induce Apoptosis through ROS Generation in Epidermoid Carcinoma Cells: Effect of Incubation Period on Sol-Gel Synthesis and Anti-Cancerous Properties

Wardah A. A. Alhoqail, Abdulaziz S. S. Alothaim, Mohd Suhail, Danish Iqbal, Mehnaz Kamal, Majid Mohammed Asmari, Azfar Jamal

Summary: This study effectively reports the influence of experimental incubation period on the sol-gel production of husk-like zinc oxide nanoparticles (ZNPs) and their anti-cancerous abilities. The surface morphology and diameter range of ZNPs were studied using SEM and TEM, respectively. The X-ray diffraction investigation showed that ZNPs had a pure wurtzite crystal structure. Prolonging the experimental incubation resulted in a relative drop in aspect ratio and a distinct blue-shift in the UV-visible spectrum. RBC lysis assay and MTT assay results indicated the innoxious nature and cytotoxicity of ZNPs against cancer cells. ZNPs may be useful in the treatment of cancer.

BIOMEDICINES (2023)

添加到收藏夹

Article Chemistry, Physical

The crystalline structure of gadolinium oxide nanoparticles (Gd2O3-NPs) synthesized at different temperatures via X-ray diffraction (XRD) technique

Fathyah Whba, Faizal Mohamed, Nur Ratasha Alia Md Rosli, Irman Abdul Rahman, Mohd Idzat Idris

Summary: The Sol-gel technique is an effective method for producing high purity and crystalline nanoparticles, as demonstrated in the synthesis of gadolinium oxide nanoparticles (Gd2O3-NPs) with varying annealing temperatures. The particles showed optimal crystallinity at 1000 degrees C, with uniform spherical morphology observed through TEM and FESEM imaging. FTIR analysis confirmed the formation of Gd2O3-NPs, indicating potential applications as a contrast agent for MRI.

RADIATION PHYSICS AND CHEMISTRY (2021)

添加到收藏夹

Article Chemistry, Physical

Multiferroic behavior of room temperature bismuth ferrite with tailored calcination temperature

V Poojitha, S. Mahalakshmi, K. Santhi, S. Nithyanatham

Summary: In this study, multiferroic bismuth ferrite was prepared using the sol-gel method and its structural and optical characteristics were examined. X-ray diffraction and Fourier transform infrared analysis were used to study the structure, while field emission scanning electron microscopy was used to observe the morphology. The research found that bismuth ferrite has potential importance in applications such as high dielectric constant capacitors and hard disc components.

SURFACES AND INTERFACES (2023)

添加到收藏夹

Article Chemistry, Inorganic & Nuclear

Actual chemical composition of 123-phase and revised phase diagram for the Y2O3-BaO-Fe2O3 system

A. V. Bryuzgina, A. S. Urusova, V. A. Cherepanov

Summary: A systematic study of the Y2O3 - BaO - Fe2O3 system near YBa2Fe3O8+8 reveals that the actual composition of the 123-type oxide differs from the ideal one. Single-phase oxide with a 123-type structure can be obtained at 1373 K in air only with a slight deficit of Ba and an excess of both Y and Fe components. The revised phase diagram for the Y2O3 - BaO - Fe2O3 system is constructed at 1373 K in air, including the composition of a previously unreported complex oxide.

JOURNAL OF SOLID STATE CHEMISTRY (2023)

添加到收藏夹

Article Biochemistry & Molecular Biology

The Influence of Nd and Sm on the Structure and Properties of Sol-Gel-Derived TiO2 Powders

Albena Bachvarova-Nedelcheva, Stancho Yordanov, Reni Iordanova, Irina Stambolova, Angelina Stoyanova, Nelly Georgieva, Veronica Nemska

Summary: TiO2 nanopowders modified by Nd and Sm were prepared using the sol-gel technique. Samples containing Sm were amorphous up to 300 degrees C, while those with Nd preserved a mixed organic-inorganic amorphous structure at higher temperatures. Samples heated at 500 degrees Celsius showed photocatalytic activity under UV irradiation and exhibited good antimicrobial activity against E. coli K12 and B. subtilis.

MOLECULES (2021)

添加到收藏夹

Article Physics, Condensed Matter

Structural, dielectric, and magnetic properties of nickel rich manganese substituted Li2Ni6MnxCo2-xO10 nanomaterial synthesized via sol-gel method

Muhammad Zain Yar, Muhammad Khalid, Muhammad Yasin, Kiran Naz, Muhammad Gul Bahar Ashiq, Muhammad Younas, Thamraa Alshahrani, Khaild I. Hussein, Khizar Bin Hassan, Bilal Ahmed, M. Mohamed Javid

Summary: The manganese-substituted nickel-rich lithium-cobalt oxide Li2Ni6MnxCo2-xO10 was successfully synthesized using the sol-gel autocombustion method. The structure and morphology of the material were characterized by XRD and SEM techniques, respectively. The prepared nanomaterial exhibited a hexagonal structure with a secondary phase. The average crystallite size was determined to be between 12 and 27 nm using different methods. SEM analysis showed the surface morphology and particle size distribution. The dielectric characteristics of the material were frequency-dependent, indicating suitability for high-frequency devices. Magnetic measurements revealed variations in saturation magnetization and coercivity with increasing Mn concentration. The obtained dielectric properties suggest potential applications in energy storage.

PHYSICA B-CONDENSED MATTER (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

Spinel nanoferrite (CoFe2O4): The impact of Cr doping on its structural, surface morphology, magnetic, and antibacterial activity traits

Sukhmanbir Kaur, Vishal Kumar Chalotra, Rohit Jasrotia, Venuka Bhasin, Sanjay Suman, Swati Kumari, Sanjay Thakur, Jahangeer Ahmed, Amir Mehtab, Tokeer Ahmad, Ranjit Singh, Sachin Kumar Godara

Summary: In this study, Cr-substituted cobalt nanoferrites were successfully prepared using sol-gel auto-combustion technique, exhibiting high saturation magnetization and coercivity for applications in data recording and EMI shielding. Raman spectroscopy showed crystal straining, and antibacterial testing indicated inhibition against both gram-negative and gram-positive bacteria.

OPTICAL MATERIALS (2022)

添加到收藏夹

Article Chemistry, Multidisciplinary

Dielectric properties of (Eu,Ca)Cu3Ti4O12 ceramics prepared by a sol-gel method

V. Dolezal, V. Jakes, J. Petrasek, P. Ctibor, O. Jankovsky, K. Rubesova, D. Sedmidubsky

Summary: The perovskite-type phase CaCu3Ti4O12 has promising dielectric properties, but the phenomenon of giant permittivity in this material has not been fully explained. In this study, Europium with similar electronegativity and ionic radius as Calcium was tested as a partial or complete substitute. A series of materials, including CaCu3Ti4O12, Eu0.4Ca0.6Cu3Ti4O12, and EuCu3Ti4O12, were prepared using a sol-gel method and sintering. The influence of microstructure and phase composition on the dielectric properties of the samples, as well as the effect of sintering temperature, was investigated. Secondary phases and microstructure were found to play a significant role in improving the permittivity values, which were found to be giant at higher frequencies but significantly different for specific compositions.

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS (2023)

添加到收藏夹

Article Materials Science, Multidisciplinary

Defects control and origins of blue and green emissions in sol-gel ZnO thin films

Hao Shen, Xinyu Shi, Zhen Wang, Zhaoyang Hou, Chunlong Xu, Libing Duan, Xiaoru Zhao, Hongjing Wu

Summary: This study controls the intrinsic defects in sol-gel ZnO thin films by annealing in different atmospheres and investigates their relationship with visible emissions. The results show that N-2-annealed ZnO film with more Zni defects and fewer Vo defects exhibits much stronger blue and green emissions.

VACUUM (2022)

添加到收藏夹

暂无数据

暂无数据

© Peeref 2019-2024. All rights reserved.