International Journal of Computational Materials Science and Surface Engineering最新文献_第2页

Modification of Interfacial Properties of Organic Device in Presence of Single Walled Carbon Nanotubes 单壁碳纳米管对有机器件界面性能的修饰

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.52687/2348-8956/915

Sudipta Sen, Pallabi Das, N. Manik

{"title":"Modification of Interfacial Properties of Organic Device in Presence of Single Walled Carbon Nanotubes","authors":"Sudipta Sen, Pallabi Das, N. Manik","doi":"10.52687/2348-8956/915","DOIUrl":"https://doi.org/10.52687/2348-8956/915","url":null,"abstract":"Device performance gets significantly affected by the interfacial properties Schottky barrier and width of space – charge region have been estimated without and with SWCNT. Rose Bengal dye has been sandwiched in between Indium Tin Oxide (ITO) coated glass substrate and Aluminium. Schottky barrier is estimated by perusing steady state current has also been considered to calculate the effective barrier in presence of externally applied electric field. Space- charge region width is interrelated to the both Schot be inferred that by incorporating SWCNT, schottky barrier and space which will improve the current flow. Current flow improvement in presence of SWCNT can also be ascribed to the lowering of energy of traps which has also been determined in this work. Device performance gets significantly affected by the interfacial properties of the device. In this work, charge region have been estimated without and with SWCNT. Rose Bengal dye has been sandwiched in between Indium Tin Oxide (ITO) coated glass substrate and Aluminium. imated by perusing steady state current – voltage plot. Image barrier lowering effect has also been considered to calculate the effective barrier in presence of externally applied electric field. charge region width is interrelated to the both Schottky barrier and the applied electric field. It can be inferred that by incorporating SWCNT, schottky barrier and space- charge region width get reduced which will improve the current flow. Current flow improvement in presence of SWCNT can also be ascribed to the lowering of energy of traps which has also been determined in this work. considered to calculate the effective barrier in presence of electric tky barrier and the applied electric field. It can charge region width get reduced which will improve the current flow. Current flow improvement in presence of SWCNT can also be ascribed","PeriodicalId":39426,"journal":{"name":"International Journal of Computational Materials Science and Surface Engineering","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80617512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis, Characterization and Conductance Properties of Cobalt Chloride Doped Polyvinyl Alcohol / Polythiophene (PVA-Co-Pth) Nanocomposite Films 氯化钴掺杂聚乙烯醇/聚噻吩(PVA-Co-Pth)纳米复合膜的合成、表征及电导性能

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.52687/2348-8956/912

A. Patil, N. Patil

{"title":"Synthesis, Characterization and Conductance Properties of Cobalt Chloride Doped Polyvinyl Alcohol / Polythiophene (PVA-Co-Pth) Nanocomposite Films","authors":"A. Patil, N. Patil","doi":"10.52687/2348-8956/912","DOIUrl":"https://doi.org/10.52687/2348-8956/912","url":null,"abstract":"Polyvinylalcohol-Co-polythiophene (PVA-Co-PTh) composite polymer films were produced by chemical polymerization. Cobalt chloride CoCl2.6H2O was applied on various levels as doping (0.2, 0.4, 0.6 and 0.8g). The produced films were characterized by TEM (transmission electron microscopy), UVVisible spectroscopy, IR (Infra red spectroscopy), SEM (scanning electron microscope), XRD (Xray diffraction), d.c electrical conductivity, and dielectric constant measurements. The optical properties of all investigated films were analyzed, when the optical absorption of the prepared films reduces with raising the amount of CoCl2.6H2O in UV (200–400nm) & VIS (500–700nm) regions. It is evident from the XRD patterns of the PVA-Co-PTh samples that the intensity of the peaks of diffraction rises with the rise in cobalt chloride content owing to the semi crystalline of the resulting Co (II) doped PVA/PTh compositions. These findings are comparable with morphological variations seen in the PVA-Co-PTh samples, as per the TEM and SEM analysis. The increase in conductivity with increase in Co (II) concentration up to 0.8g of CoCl26H2O has been observed in PVA-Co-PPy composites and the dielectric constant tends to increase with the increment infrequency as well as with enhancement in Co (II) composition. ARTICLE HISTORY Received 26-06-2021 Revised 01-12-2021 Accepted 03-12-2021 Published 12-01-2022","PeriodicalId":39426,"journal":{"name":"International Journal of Computational Materials Science and Surface Engineering","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83869857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Synthesis and studies of optical properties of Eu3+ doped Gd2O3 phosphor prepared via hydrothermal process 水热法制备Eu3+掺杂Gd2O3荧光粉的合成及光学性能研究

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.52687/2348-8956/918

Premananda Naorem Singh, W. R. Singh ·, N. Singh

{"title":"Synthesis and studies of optical properties of Eu3+ doped Gd2O3 phosphor prepared via hydrothermal process","authors":"Premananda Naorem Singh, W. R. Singh ·, N. Singh","doi":"10.52687/2348-8956/918","DOIUrl":"https://doi.org/10.52687/2348-8956/918","url":null,"abstract":"Eu 3+ ion doped Gd 2 O 3 phosphors with varying concentrations were synthesized successfully by hydrothermal process. The XRD pattern of prepared samples was in good agreement with cubic system of pure Gd 2 O 3 (JCPDS No. 86-2477) with no extra phase. The TEM and HRTEM images also revealed the prepared samples are highly crystalline nanorods having the diameter in the range of 20 – 30 nm with different length. Vibrational modes are also studied using FT-IR Spectroscopy. Upon the emission at λ em = 612 nm, a broad absorption band observed around at 220 – 300 nm is due to overlap of O 2- to Eu 3+ charge transfer (CT) band, Gd 3+ to Eu 3+ CT band and host lattice absorption band and other weak bands observed at longer wavelength regions are attributed to the f-f transitions of the Eu 3+ ions. In the emission spectrum obtained by excitations at 258 nm, consists of the characteristic transition lines between Eu 3+ levels. The emission spectrum was dominated by the red 5 D 0  7 F 1 (612 nm) transition of the Eu 3+ ion which is an electric-dipole allowed transition and hypersensitive to the environment. The photoluminescence lifetime of the prepared samples are found to be 2.88 – 1.24 ms ranges.","PeriodicalId":39426,"journal":{"name":"International Journal of Computational Materials Science and Surface Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80737121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Co-Precipitation Mediated Fabrication of Composite with Mns2 and Reduced Graphene Oxide as Potential for Inactivation of Ortho-Nitrophenol and Pathogens Mns2和还原氧化石墨烯共沉淀介导的复合材料对邻硝基苯酚和病原体失活的潜在影响

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.52687/2348-8956/917

D. Varaprasada, B. S. Mohanb, D. Ramadevi, K. Basavaiaha, P. Vani

{"title":"Co-Precipitation Mediated Fabrication of Composite with Mns2 and Reduced Graphene Oxide as Potential for Inactivation of Ortho-Nitrophenol and Pathogens","authors":"D. Varaprasada, B. S. Mohanb, D. Ramadevi, K. Basavaiaha, P. Vani","doi":"10.52687/2348-8956/917","DOIUrl":"https://doi.org/10.52687/2348-8956/917","url":null,"abstract":"In this paper, the authors have report the fabrication of MnS 2 with reduced graphene oxide (MnS 2 -RGO) composite through co-precipitation route. The prepared samples were characterized by analytical instruments like XPS, FTIR, XRD, BET, SEM-EDX, TEM, UV-DRS and TGA for understanding the optical, electrochemical, structural and thermal properties. The prepared composites and bare MnS 2 were examined for their photocatalytic performance by the degradation of o -nitrophenols under visible light irradiations. However, MnS 2 -RGO-2 composite was the most effective photocatalyst for the degradation of o -nitrophenols in 75 min and can be recycled for continuous five cycles. The MnS 2 -RGO composites and bare MnS 2 were further examined their antimicrobial activity over E.coli, S.aureus, S.typhi and V.cholera . In addition, the effect of RGO on enhanced catalytic degradation of o -nitrophenols under visible light irradiations and antibacterial activity as prepared composite exhibits tremendous properties of both MnS 2 and RGO.","PeriodicalId":39426,"journal":{"name":"International Journal of Computational Materials Science and Surface Engineering","volume":"240 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74511191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Performance Prediction of Braced Unreinforced and Strengthened Clay Brick Masonry Walls under Close-range Explosion through Numerical Modeling 用数值模拟方法预测近距离爆炸作用下支撑、加固粘土砖砌体墙体的性能

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.1504/ijcmsse.2022.10051496

M. Umair, M. Alam, S. Anas

引用次数: 7

Topological data analysis and Comparison of physical parameters of different forms of Graphene 拓扑数据分析及不同形态石墨烯的物理参数比较

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.1504/ijcmsse.2022.10052084

S. R, Navya Jose, K. J, Mahesh Kumar

引用次数: 0

NiO-FeS2 Heterostructure Composite: Benign Photocatalyst for Reduction of Nitrophenol to Aminophenol NiO-FeS2异质结构复合材料:硝基苯酚还原为氨基苯酚的良性光催化剂

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.52687/2348-8956/916

Allu Ganga Raju, Gandham Himabindu, Yagati Vamsi Kumar

引用次数: 0

Reclaim of Synthetic Rutile Fines Produced In Ilmenite Beneficiation Process by Agglomeration 钛铁矿选矿过程中合成金红石细粒的团聚回收

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.52687/2348-8956/913

G. Lijith, I. K. Shaju, P. K. Manikuttan

{"title":"Reclaim of Synthetic Rutile Fines Produced In Ilmenite Beneficiation Process by Agglomeration","authors":"G. Lijith, I. K. Shaju, P. K. Manikuttan","doi":"10.52687/2348-8956/913","DOIUrl":"https://doi.org/10.52687/2348-8956/913","url":null,"abstract":"The synthetic rutile is used as feed stock material for producing rutile TiO2 under chloride route method. The synthetic rutile suitable for chlorination process under fluidized bed reactor was having a specification of TiO2 content above 90 %, silica content less than 2 %, and particle above 100 micron in size. One of the steps in the up-gradation process of ilmenite was leaching with mineral acids. The leach liquor obtained after leaching process is called spent acid. During leaching process, aberration leads to produce ultra fine particles of synthetic rutile which is found suspended in spent acid. A few amount of TiO2 was digested in acid to form hydrated TiO2. The spent acid contains both these ultra fine particles and hydrated TiO2 particles which were allowed to settled and removed from the system as TiO2 sludge. In addition to TiO2 sludge, a small quantity (0.5 0.7 %) of synthetic rutile having particle size less than 100 micron (required specification) were also generated, which is removed by using cyclone and stored as synthetic rutile fines. The quantity of synthetic rutile fines and TiO2 sludge produced are 1.0 MT and 3.0 MT respectively in a production plant having the synthetic rutile production capacity of 140 MT/day. The present invention aims to recover and re-use the synthetic rutile fines and TiO2 sludge generated in the ilmenite beneficiation plant by agglomeration technique. ARTICLE HISTORY Received 13-12-2021 Revised 18-12-2021 Accepted 22-12-2021 Published 12-01-2022","PeriodicalId":39426,"journal":{"name":"International Journal of Computational Materials Science and Surface Engineering","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75809889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance Enhancement of Square Reinforced Concrete Column Carrying Axial Compression by (1) C-FRP Wrapping, and (2) Steel Angle System under Air-blast Loading (1) C-FRP包覆和(2)钢角钢体系对风荷载下轴压方形钢筋混凝土柱性能的提高

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.1504/ijcmsse.2022.10051781

A. Hussain, N. Islam, S. Anas, M. Alam, M. Shariq

引用次数: 1

Prioritisation of self-curing self-compacting mortars with hydrophilic chemicals using MCDM techniques 采用MCDM技术优选亲水化学品自养护自密实砂浆

International Journal of Computational Materials Science and Surface Engineering Pub Date : 2022-01-01 DOI: 10.1504/ijcmsse.2022.125762

Degloorkar Nikhil Kumar, Pancharathi Rathish Kumar, S. Reddi, Sri Rama Chand Madduru

引用次数: 0