Journal of Ovonic Research最新文献

Electrochemical performance of rice grains like high Mn-doped anatase TiO2 nanoparticles as lithium-ion batteries electrode material 米粒状高锰掺杂锐钛矿 TiO2 纳米颗粒作为锂离子电池电极材料的电化学性能

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-06-06 DOI: 10.15251/jor.2024.203.357

H. Q. Zhao, L. Li, Q. S. Yuan

引用次数: 0

Modified nonlinear ion drift model for TiO2 memristor: a temperature dependent study 修正的二氧化钛记忆晶闸管非线性离子漂移模型：随温度变化的研究

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-06-06 DOI: 10.15251/jor.2024.203.345

S. Panda, C. S. Dash, R. Jothiramalingam, H. Al-Lohedan

引用次数: 0

Probing optoelectronic and thermoelectric properties of double perovskite halides Li2CuInY6 (Y = Cl, Br, I) for energy conversion applications 探测双包晶卤化物 Li2CuInY6（Y = Cl、Br、I）的光电和热电特性，促进能量转换应用

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-05-15 DOI: 10.15251/jor.2024.203.333

N. Ahmad Noor, F. Nasrullah, H. Elansary, S. Mumtaz

{"title":"Probing optoelectronic and thermoelectric properties of double perovskite halides Li2CuInY6 (Y = Cl, Br, I) for energy conversion applications","authors":"N. Ahmad Noor, F. Nasrullah, H. Elansary, S. Mumtaz","doi":"10.15251/jor.2024.203.333","DOIUrl":"https://doi.org/10.15251/jor.2024.203.333","url":null,"abstract":"Recently, double perovskite halides (DPHs) become crucial due to their potential applications in optoelectronic devices due to their stability, non-toxicity, superior oxidation resistance, high conversion efficiency, and high temperature stability. In the current study, we explored DPHs Li2CuInY6 (Y = Cl, Br, I) employing Wien2k package to analyze the structural stability, optoelectronic and thermoelectric features. The formation energy and Born stability criteria are computed to confirm thermodynamic and structural stability. Studied DPHs have direct bandgaps nature investigated by modified Becke and Johnson (mBJ) potential. Calculated values of bandgap decreases, when replace halide ion from Cl to I, indicate tuning from visible to infrared (IR) region of electromagnetic spectrum. Their band edge tuning across the visible to infrared border is reliant on replacement, which makes them suitable for projects involving opto-electronic devices. Further, optical features are investigated in terms of incident photon energy in order to assess the optical output. Lastly, electronic thermoelectric performance is computed using the figure of merit (ZT) for all DPs. Computed results of direct bandgap and optical behavior show that DP Li2CuInCl6 can be used as photovoltaic devices as compared to DPs Li2CuInBr6 and Li2CuInI6.","PeriodicalId":54394,"journal":{"name":"Journal of Ovonic Research","volume":" December","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141127911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Absorber layer improvement and performance analysis of CIGS thin-film solar cell CIGS 薄膜太阳能电池吸收层的改进和性能分析

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-05-15 DOI: 10.15251/jor.2024.203.309

A. Khamis, N. I. M. Rodzi, N. Z. A. Naharuddin

引用次数: 0

Investigations on synthesis, growth and characterisations of a NLO material: L-Tryptophanium phosphite (LTP) 对一种 NLO 材料的合成、生长和特性的研究：L-亚磷酸色氨酸（LTP）

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-05-15 DOI: 10.15251/jor.2024.203.325

P. D. H. B. Santhi, R. S. Samuel, R. Raja, A. M. Hidayathullah, S. Janarthanan, P. Suresh

引用次数: 0

Surface parametric influences on the photocatalytic behaviour of zinc oxide nanoparticles 表面参数对纳米氧化锌光催化行为的影响

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-03-01 DOI: 10.15251/jor.2024.201.115

R. Jagadeeswari, G. Rathika, K. V. Satheesh Kumar, P. Selvakumar

引用次数: 0

Sr0.99Zr(PO4)2:0.01Eu3+ ceramic glass for photoluminescence applications 用于光致发光应用的 Sr0.99Zr(PO4)2:0.01Eu3+ 陶瓷玻璃

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-03-01 DOI: 10.15251/jor.2024.202.155

N. Thiruveni, R. Mathammal

引用次数: 0

Structural and magnetic characterizations of Co substituted Ni-Cu-Zn nanoferrites 钴取代镍铜锌纳米铁氧体的结构和磁性特征

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-03-01 DOI: 10.15251/jor.2024.202.125

Ch. Sianglam, L. R. Singh, B. Thangjam

引用次数: 0

Effect of annealing temperature on the physical of nanostructured TiO2 films prepared by sol-gel method 退火温度对溶胶-凝胶法制备的纳米结构 TiO2 薄膜物理特性的影响

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-03-01 DOI: 10.15251/jor.2024.202.131

A. A. Abdul Razaq, F. H. Jasim, S. S. Chiad, F. A. Jasim, Z. S. A. Mosa, Y. H. Kadhim

{"title":"Effect of annealing temperature on the physical of nanostructured TiO2 films prepared by sol-gel method","authors":"A. A. Abdul Razaq, F. H. Jasim, S. S. Chiad, F. A. Jasim, Z. S. A. Mosa, Y. H. Kadhim","doi":"10.15251/jor.2024.202.131","DOIUrl":"https://doi.org/10.15251/jor.2024.202.131","url":null,"abstract":"This study uses glass substrates to create nanostructured TiO2 thin films employing SolGel method. Afterwards, TiO2 films are annealed in air for two hours at (400, 450, and 500) °C. The XRD tests demonstrate that all films are tetragonal polycrystalline and have orientations equal to those described in the literature. These findings suggest that when the annealing temperature rises, grain size increases. As the annealing temperature is raised, the Full Width at Half Maximum (FWHM) reduces from 0.57° to 0.0.51°, and the dislocation density drops from 45.22 to 39.22.18 nm, respectively. AFM has examined the thin films' surface morphology. The films formed using this method have good crystalline and homogenous surfaces, according to AFM tests. With an increase in annealing temperature, thin films' average particle size, average roughness, and Root Mean Square (RMS) value all drop. The films' optical characteristics. The transmission was over 97% decreased with increasing annealing temperatures. It is found that the band gap decreases from 3.42 to 3.3 eV with increasing annealing temperature. Between 300 and 900 nm, the films' refractive indices range from 2.89 to 2.2.76. With higher annealing temperatures, the films' extinction coefficients fall.","PeriodicalId":54394,"journal":{"name":"Journal of Ovonic Research","volume":"202 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140270888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Exploring structural, magnetic, morphology and optical properties of La2−xAlxCuO4 (0 ≤ x ≤ 0.25) perovskite nanoparticles by microwave-assisted combustion method 微波辅助燃烧法合成 La2-xAlxCuO4 (0 ≤ x ≤ 0.25) 包晶纳米粒子并探索其结构、磁性、形貌和光学特性

IF 1 4区材料科学

Journal of Ovonic Research Pub Date : 2024-03-01 DOI: 10.15251/jor.2024.202.143

S. Yuvaraj, P. Aji Udhaya, S. Deepa, M. Sundararajan, R. Jothiramalingam, H. Al-Lohedan, H. Al-Sigh, A. A. Nazeer

{"title":"Synthesis and Exploring structural, magnetic, morphology and optical properties of La2−xAlxCuO4 (0 ≤ x ≤ 0.25) perovskite nanoparticles by microwave-assisted combustion method","authors":"S. Yuvaraj, P. Aji Udhaya, S. Deepa, M. Sundararajan, R. Jothiramalingam, H. Al-Lohedan, H. Al-Sigh, A. A. Nazeer","doi":"10.15251/jor.2024.202.143","DOIUrl":"https://doi.org/10.15251/jor.2024.202.143","url":null,"abstract":"La2CuO4 perovskite nanoparticles doped with aluminum were synthesized through the microwave-assisted combustion technique. Comprehensive studies on the structural, magnetic optical, functional and morphological properties were conducted using various techniques, including XRD, EDX, VSM, DRS-UV, FT-IR and FESEM respectively, .The XRD patterns of pristine La2CuO4 and Al-doped La2CuO4 unequivocally validated the exclusive development of a perovskite structure, devoid of any impurities. Nevertheless, the augmentation in Al3+ content (x = 0–0.25) induced a noteworthy phase shift from orthorhombic to cubic configuration. The average crystallite dimensions spanned from 54 to 41 nm. Distinct FT-IR bands at approximately 687 and 434 cm-1 were intricately linked to the La-O and Cu-O stretching modes inherent to the orthorhombic La2CuO4 phase. The energy gap determined through the Kubelka–Munk (K–M) methodology, experienced an elevation concomitant with the heightened Al3+ content (1.67–1.72 eV), attributable to quantum confinement phenomena. Within the La2-xAlxCuO4 (x = 0 to 0.25) system, the genesis of nanoscaled crystallized grains, interspersed with pores resulting from the amalgamation of grains, was evident. Analysis of hysteresis curves unveiled the emergence of soft ferromagnetic behavior at ambient temperature.","PeriodicalId":54394,"journal":{"name":"Journal of Ovonic Research","volume":"165 ","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140274554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0