Micro and Nanosystems最新文献

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Exploring Therapeutic Potential Of Invasomes, Transfersomes, Transethosomes, Oleic Acid Vesicles, And Cubosomes Adopting Topical/Transdermal Route 采用局部/经皮途径探索血管内体、转运体、溶酶体、油酸囊泡和立方体的治疗潜力
Micro and Nanosystems Pub Date : 2021-04-06 DOI: 10.2174/1876402913666210406163452
Shivani Verma, Puneet Utreja
{"title":"Exploring Therapeutic Potential Of Invasomes, Transfersomes, Transethosomes, Oleic Acid Vesicles, And Cubosomes Adopting Topical/Transdermal Route","authors":"Shivani Verma, Puneet Utreja","doi":"10.2174/1876402913666210406163452","DOIUrl":"https://doi.org/10.2174/1876402913666210406163452","url":null,"abstract":"\u0000\u0000Transdermal drug delivery is considered as a better alternative to oral administration of drugs like proteins or peptides that are susceptible to extensive degradation via first pass metabolism. This delivery route also shows high patient compliance due to no use of painful injections. Conventional delivery systems like creams and gel show poor skin permeation and high dosing frequency. \u0000\u0000\u0000\u0000The objective of this work was to investigate the role of highly advanced micro and nanocarrier systems like invasomes, transfersomes, transethosomes, oleic acid vesicles, and cubosomes for transdermal drug delivery exploring literature survey. \u0000\u0000\u0000\u0000Literature survey for these advanced micro and nanocarrier systems was carried out using search engines like Pubmed and Google scholar.\u0000\u0000\u0000\u0000Results of literature investigations revealed that advanced micro and nanocarrier systems discussed earlier have the caliber to enhance skin permeation of various bioactives, show sustain release, and target particular areas of skin better compared to old nanocarriers like liposomes.\u0000\u0000\u0000\u0000Present review concludes that advanced micro and nanocarrier systems like invasomes, transfersomes, transethosomes, oleic acid vesicles, and cubosomes are better alternatives for transdermal delivery of therapeutic agents compared to old nanocarriers like liposomes and conventional delivery systems like creams and gels.\u0000","PeriodicalId":18543,"journal":{"name":"Micro and Nanosystems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49386361","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: 3
Effect of substrate on the performance of flexible energy storage devices based on surface modified C60 – β Ni(OH)2 nanocomposite 衬底对C60 - β Ni(OH)2纳米复合材料柔性储能器件性能的影响
Micro and Nanosystems Pub Date : 2021-04-05 DOI: 10.2174/1876402913666210405152403
Soorya Sasi, Sunish K. Sugunan, Radhakrishnan Nair P., S. Mathew
{"title":"Effect of substrate on the performance of flexible energy storage devices based on surface modified C60 – β Ni(OH)2 nanocomposite","authors":"Soorya Sasi, Sunish K. Sugunan, Radhakrishnan Nair P., S. Mathew","doi":"10.2174/1876402913666210405152403","DOIUrl":"https://doi.org/10.2174/1876402913666210405152403","url":null,"abstract":"\u0000\u0000Aim of this study is to find the effect of the current collector in the performance of flexible energy storage devices based on surface modified organic-inorganic composite. \u0000\u0000\u0000\u0000\u0000 As a part of our pursuit to develop flexible supercapacitive electrodes, we recently reported the fabrication of an electrode from an organic-inorganic composite slurry of surface functionalized fullerene and nickel hydroxide coated onto a copper sheet substrate using simple doctor blade method. We reported that the electrodes deliver specific energy and specific power of 661.5 Wh/kg and 8.8 KW/kg, respectively, and a specific capacitance of 675 Fg−1, which showed excellent cycling stabilities. In an effort to search for various combinatorial combinations of the composite and the substrate, in lieu of copper, in the present study, we incorporate nickel sheet as the current collector. \u0000\u0000\u0000\u0000\u0000The structure and composition of the binder-free, flexible super capacitive electrodes were characterized using XRD, TEM, FTIR, XPS, BET, Raman Spectroscopy, and their electrochemical properties were characterized using cyclic voltammetry, galvanostatic charge-discharge measurements, chronoamperommetry and impedance spectroscopy. \u0000\u0000\u0000\u0000\u0000The as-prepared films stuck readily onto the substrate without the need of any binder material, exhibited remarkable flexibility, and were proven to be crack-free when subjected to repeated bending and twisting. The developed flexible super capacitive electrodes deliver a specific capacitance of 296 F g−1, maximum energy density of 82.2 Wh kg−1, and a maximum power density of 1056 W kg−1. The device retains 91.2 % of its capacitance when subjected to 1000 charge-discharge cycles. \u0000\u0000\u0000\u0000\u0000Our observations indicate that copper is the better choice as the current collector, which can be ascribed to the better electrical conductivity of copper compared to nickel. We conclude that the poor electrical conductivity of nickel sheet compared to copper substrate make the bottleneck for the performance of electrodes made using nickel substrate. To recapitulate, judicious choice of a current collector with high electrical conductivity along with a suitable surface modification strategy to form a composite in an amorphous form that forms smooth slurry are vital to the fabrication of binder-free, flexible supercapacitive devices.\u0000\u0000","PeriodicalId":18543,"journal":{"name":"Micro and Nanosystems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43820951","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
Recent developments on Biopolymeric nanoparticles for Drug Delivery systems: An overview 生物聚合物纳米颗粒在给药系统中的最新进展:综述
Micro and Nanosystems Pub Date : 2021-04-05 DOI: 10.2174/1876402913666210405155127
Soumya R. Barik, R. Mohapatra, P. Mohapatra, A. Mahal, M. El-ajaily
{"title":"Recent developments on Biopolymeric nanoparticles for Drug Delivery systems: An overview","authors":"Soumya R. Barik, R. Mohapatra, P. Mohapatra, A. Mahal, M. El-ajaily","doi":"10.2174/1876402913666210405155127","DOIUrl":"https://doi.org/10.2174/1876402913666210405155127","url":null,"abstract":"\u0000\u0000Nanotechnology gain momentum in recent years in the field of drug delivery including nanomedicine and nano-delivery systems. Several applications such as biological agents, chemotherapeutic agents and immunotherapeutic agents are used for the treatment of number of diseases. This review compiles an updated summary on recent developments in this emerging field of nanomedicines and nanotechnology-based drug delivery systems. The study of nanostructured drug delivery systems helps to understand the efficient transport and controlled release of drugs to the diseased tissues of living organisms. This has stimulated the authors to highlight recent advances on smart nanocarriers composed of biopolymeric nanoparticles such as liposomes, dendrimers, and hydrogels. This review also highlighted some critical issues in the designing of nanocarrier systems for biomedical applications.\u0000","PeriodicalId":18543,"journal":{"name":"Micro and Nanosystems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42455157","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: 3
Influence of nano-sized Al2O3 reinforcements on the mechanical behavior of the Al7075 composites 纳米Al2O3增强材料对Al7075复合材料力学性能的影响
Micro and Nanosystems Pub Date : 2021-03-15 DOI: 10.2174/1876402913666210315160435
M. Reddy, H. Raju, N. Banapurmath, V. V. Meti, A. Patil
{"title":"Influence of nano-sized Al2O3 reinforcements on the mechanical behavior of the Al7075 composites","authors":"M. Reddy, H. Raju, N. Banapurmath, V. V. Meti, A. Patil","doi":"10.2174/1876402913666210315160435","DOIUrl":"https://doi.org/10.2174/1876402913666210315160435","url":null,"abstract":"\u0000\u0000\u0000\u0000Al7075 is a well-defined alloy for its excellent physical and mechanical behavior such as high strength, toughness, and low density. To reach the expectations of the automobile and aerospace applications, the properties of Al7075 alloy has to be improved by reinforcing nano-sized Al2O3 particles. \u0000\u0000\u0000\u0000\u0000Synthesis and characterization of the Al7075 alloy reinforced with Al2O3 nano particles for different structural engineering applications.\u0000\u0000\u0000\u0000\u0000In this present work, nano-sized Al2O3 particles were added and dispersed homogeneously using a stir casting technique. AA7076/Al2O3 composites were prepared by varying wt.% percent of Al2O3 reinforcement particles (0.75, 1, 1.25, 1.5. 1.75 and 2 wt.% (weight-percentage)). \u0000\u0000\u0000\u0000\u0000The SEM micrographs reveal the homogeneous distribution of Al2O3 reinforcements along the grain boundaries of the Al7075 matrix material. The experimental test results showed that the addition of Al2O3 reinforcements, the mechanical properties of the Al7075/Al2O3 composite, improved as compared to the Al7075 matrix material. \u0000\u0000\u0000\u0000\u0000The composite with 1.5 wt.% Al2O3 showed higher strength and hardness as compared to other reinforcements.\u0000\u0000","PeriodicalId":18543,"journal":{"name":"Micro and Nanosystems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41516671","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 and characterisation of iron oxide (Fe3O4) ferrofluid nanoparticles coated by poly (vinyl butyral) with microsphere 聚乙烯醇缩丁醛微球包覆氧化铁(Fe3O4)铁磁流体纳米粒子的合成与表征
Micro and Nanosystems Pub Date : 2021-03-08 DOI: 10.2174/1876402913666210308142702
Sharanabasava V. Ganachari, N. Banapurmath, Jayachandra S. Yaradoddi, Veerabhadragouda B. Patil, Akshata Yavagal, Pradyumna Mogre
{"title":"Synthesis and characterisation of iron oxide (Fe3O4) ferrofluid nanoparticles coated by poly (vinyl butyral) with microsphere","authors":"Sharanabasava V. Ganachari, N. Banapurmath, Jayachandra S. Yaradoddi, Veerabhadragouda B. Patil, Akshata Yavagal, Pradyumna Mogre","doi":"10.2174/1876402913666210308142702","DOIUrl":"https://doi.org/10.2174/1876402913666210308142702","url":null,"abstract":"\u0000\u0000Synthesis of magnetic nano Iron oxide (Fe3O4) ferrofluid nanoparticles using chemical methods and its characterization studies \u0000\u0000\u0000\u0000\u0000 Iron oxide (Fe3O4) ferrofluid nanoparticles is synthesized by using the chemical co-precipitation technique, ferric and ferrous salts in the alkaline medium, which is known as Reimer’s procedure.\u0000\u0000\u0000\u0000\u0000Nano iron oxide (Fe3O4) particles have different magnetic properties and different magnetic moments, differentiating macroscopic iron oxide in suspended particles. The ratio of surface to volume increases along with the decrease in atomic size so that the surface properties are essential for using any nano-material. Prepared Fe3O4 nanoparticles were coated with oleic acid (C18H34O2) and polyvinyl butyral((C8H14O2)n), further characterized by Materials characterization techniques (SEM, XRD and FTIR). Magneto-rheological (MR) fluid has been one of the interesting studies the shear stress of PVB coated nano iron with microsphere has approximately the same as of PVB coated nano iron but shows very high shear stress withstanding capacity at 650 s-1 shear rates. \u0000\u0000\u0000\u0000\u0000The permanence of the magnetic colloidal depends on the thermal contribution and the balance between attractive and repulsive interactions.\u0000\u0000","PeriodicalId":18543,"journal":{"name":"Micro and Nanosystems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41739430","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
Sodium Ligninsulfonate-assisted Synthesis of Lithium Bismuthate/bismuth Oxide Microspheres and Solar Light Photocatalytic Performance 木质素磺酸钠辅助合成铋酸锂/氧化铋微球及其光催化性能
Micro and Nanosystems Pub Date : 2021-03-04 DOI: 10.2174/1876402913666210304103951
C.H. Yu, Y. Mao, Z. Xue, J. Kong, H. Li, L. Pei, C. Fan, S. Tang
{"title":"Sodium Ligninsulfonate-assisted Synthesis of Lithium Bismuthate/bismuth Oxide Microspheres and Solar Light Photocatalytic Performance","authors":"C.H. Yu, Y. Mao, Z. Xue, J. Kong, H. Li, L. Pei, C. Fan, S. Tang","doi":"10.2174/1876402913666210304103951","DOIUrl":"https://doi.org/10.2174/1876402913666210304103951","url":null,"abstract":"\u0000\u0000 Great attention has been paid to the environmental pollution by organic dyes which are difficult to be degraded in natural environment and have been an unavoidable and urgent global problem. It is essential to develop green waste water treatment technology with high removal efficiency and low cost to protect surroundings and human health.\u0000\u0000\u0000\u0000\u0000 The aim of the research is to synthesize lithium bismuthate/bismuth oxide microspheres with good photocatalytic performance for the removal of gentian violet (GV).\u0000\u0000\u0000\u0000\u0000Lithium bismuthate/bismuth oxide microspheres were successfully prepared by a sodium ligninsulfonate-assisted hydrothermal synthesis route. The lithium bismuthate/bismuth oxide microspheres were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier Transform infrared spectroscopy (FTIR) and solid UV-vis diffuse reflectance spectrum.\u0000\u0000\u0000\u0000\u0000 XRD pattern and SEM observation show that the lithium bismuthate/bismuth oxide microspheres are composed of cubic LiBi12O18.50 and monoclinic Bi2O3 with the diameter of 250 nm-1 μm. Irregular microscale and nanoscale particles are formed under low hydrothermal temperature, low sodium ligninsulfonate concentration and short duration time. With increasing the sodium ligninsulfonate concentration, hydrothermal temperature and duration time, irregular particles are transferred into microspheres. Lithium bismuthate/bismuth oxide microspheres possess a band gap energy of 1.85 eV suggesting good visible light absorption ability. The photocatalytic removal ability for GV is enhanced by prolonging light irradiation time and microspheres dosage. GV solution with the concentration of 10 mg•L-1 is able to be totally degraded by 10 mg lithium bismuthate/bismuth oxide microspheres in 10 mL GV solution under solar light irradiation for 6 h.\u0000\u0000\u0000\u0000\u0000 The lithium bismuthate/bismuth oxide microspheres show good photocatalytic removal ability toward GV in waste water under solar light irradiation.\u0000\u0000","PeriodicalId":18543,"journal":{"name":"Micro and Nanosystems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42767961","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
Assessment of Quantum Scaling Length Model for Cylindrical Surrounding Double-Gate (CSDG) MOSFET 圆柱形环绕双栅MOSFET量子尺度长度模型的评估
Micro and Nanosystems Pub Date : 2021-02-22 DOI: 10.2174/1876402913666210222141301
Uchechukwu A. Maduagwu, V. Srivastava
{"title":"Assessment of Quantum Scaling Length Model for Cylindrical Surrounding Double-Gate (CSDG) MOSFET","authors":"Uchechukwu A. Maduagwu, V. Srivastava","doi":"10.2174/1876402913666210222141301","DOIUrl":"https://doi.org/10.2174/1876402913666210222141301","url":null,"abstract":"\u0000\u0000The derivation and assessment of quantum scaling length of Cylindrical Surrounding Double-Gate (CSDG) MOSFET with respect to Silicon body thickness.\u0000\u0000\u0000\u0000\u0000To derive the quantum natural length of CSDG MOSFET with respect of Silicon body\u0000Thickness, observe the behaviour of the CSDG MOSFET at the nanoscale regime and compare the behaviour of the CSDG MOSFET with Cylindrical Surrounding Gate\u0000(CSG) MOSFET.\u0000\u0000\u0000\u0000 The authors employed the mathematical analysis. The quantum energy level is analysed using Schrodinger equation by assuming one-dimensional approach and a negligible potential well.\u0000\u0000\u0000\u0000The analytical results obtained from classical and quantum natural length are compared with the numerical simulations. Also, the model was compared with CSG MOSFET. Results shows that proposed analytical close-form expression approximately matches the numerical simulation and the proposed CSDG MOSFET will be better than CSG MOSFET at quantum level even though it has smaller quantum natural length than CSG MOSFET.\u0000\u0000\u0000\u0000 In this research work, quantum scaling length model and quantum scaling factor have been proposed using the quantum confinement approach. The performance assessment of the CSDG MOSFETs provided an opportunity of determining the scaling limit of CSDG MOSFETs by evaluating the trade-off between the quantum natural length and the classical natural length of CSDG MOSFETs. Results obtained were compared with CSG MOSFETs to show that CSDG MOSFETs offer better device characteristics.\u0000\u0000","PeriodicalId":18543,"journal":{"name":"Micro and Nanosystems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42186073","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: 3
Deformation Behavior, Fatigue and Fracture Surface Microstructure of Porous Titanium Nickelid 多孔镍钛合金的变形行为、疲劳及断口组织
Micro and Nanosystems Pub Date : 2021-02-22 DOI: 10.2174/1876402913666210222142150
E. Marchenko, Y. Yasenchuk, D. Avdeeva, G. Baigonakova, S. Gunther, M. Iuzhakova
{"title":"Deformation Behavior, Fatigue and Fracture Surface Microstructure of Porous Titanium Nickelid","authors":"E. Marchenko, Y. Yasenchuk, D. Avdeeva, G. Baigonakova, S. Gunther, M. Iuzhakova","doi":"10.2174/1876402913666210222142150","DOIUrl":"https://doi.org/10.2174/1876402913666210222142150","url":null,"abstract":"\u0000\u0000 The porous SHS–TiNi alloy is a widely used material for repairing defects in bone\u0000tissues.\u0000\u0000\u0000\u0000The objective of the study is to comprehensively investigate porous SHS–TiNi alloy\u0000samples for fatigue strength under cyclic bending, to study deformation characteristics under\u0000quasistatic tension and bending, and to carry out the fractographic analysis of fracture features.\u0000\u0000\u0000\u0000 The study employed the electrospark method for cutting plates from a porous isotropic\u0000SHS–TiNi rod 30 mm in diameter and 300 mm in length.\u0000\u0000\u0000\u0000 Deformation behaviour under tension and three-point bending of porous plates showed that\u0000porous samples undergo viscoelastic deformation due to the austenite–martensite (A→M) phase\u0000transformation. The fracture surfaces of elastic porous samples were studied by SEM. Microscopic\u0000studies of fracture surfaces revealed zones of quasi-brittle fracture of martensite and viscous fracture\u0000of austenite. The porous framework of intermetallic alloy exhibits a continuous brittle layer and\u0000numerous brittle non-metallic inclusions. However, successful fatigue tests showed that brittle phases\u0000and inclusions do not significantly affect deformation and fatigue characteristics of porous titanium\u0000nickelide. It was found that 70% of porous samples sustain 106\u0000cycles of deformation without fracture\u0000due to reversible A→M→A phase transformations in the TiNi phase, which is one of the components\u0000of multiphase porous alloy.\u0000\u0000\u0000\u0000Viscoelastic behavior of the porous sample and its high fatigue strength under cyclic\u0000loading is due to reversible deformation of the TiNi phase. The corrosion-resistant layer of the porous\u0000framework allows an effective use of SHS–TiNi.\u0000\u0000","PeriodicalId":18543,"journal":{"name":"Micro and Nanosystems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43597319","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
Dye-sensitized solar cells based a new type of nonvolatile Co(II)/Co(III) electrolyte delivering higher power conversion efficiency for indoor applications. 染料敏化太阳能电池是一种新型非挥发性Co(II)/Co(III)电解质,可为室内应用提供更高的功率转换效率。
Micro and Nanosystems Pub Date : 2021-02-19 DOI: 10.2174/1876402913666210219153948
Soorya Sasi, Arya Sajeev, Sunish K. Sugunan, P. Nair, S. Mathew
{"title":"Dye-sensitized solar cells based a new type of nonvolatile Co(II)/Co(III) electrolyte delivering higher power conversion efficiency for indoor applications.","authors":"Soorya Sasi, Arya Sajeev, Sunish K. Sugunan, P. Nair, S. Mathew","doi":"10.2174/1876402913666210219153948","DOIUrl":"https://doi.org/10.2174/1876402913666210219153948","url":null,"abstract":"\u0000\u0000 Electrolyte is an essential constituent of a dye-sensitized solar cell (DSSC) as it\u0000mediates charge transport and regeneration of the oxidized dye. Iodide/triiodide (I-\u0000/I3-) based\u0000electrolytes are the ones widely being used in DSSCs. These types of electrolytes are usually made\u0000by dissolving high concentrations of triiodide and polyiodide species in solvents such as acetonitrile\u0000or methoxypropionitrile. These solvents face evaporation issues and lead to stability problems, thus\u0000reduce the life span of the DSSC. For solving these issues, various types of electrolytes such as ionic\u0000liquids, and gelated liquid electrolytes have been used to replace the conventional volatile\u0000electrolytes.\u0000\u0000\u0000\u0000 To solve the solvent evaporation issue and increase in electric resistance, we aim to\u0000synthesis a nonvolatile electrolyte with excellent open-circuit voltage and stability.\u0000\u0000\u0000\u0000 A new genre of nonvolatile Co(II)/Co(III) redox electrolyte was synthesized by the reaction\u0000of tris(2-(1H-pyrazol-1-yl)pyridine)cobalt(II) and tris(2-(1H-pyrazol-1-yl)pyridine) cobalt(III) with\u00002,4,6-tris(dodecyloxy)benzaldehyde. As a proof-of-principle experiment, a DSSC was fabricated\u0000using the as-synthesized electrolyte, N-719 dye as the light harvester, and TiO2 as the photoanode and\u0000their performances were analyzed in room light conditions.\u0000\u0000\u0000\u0000 The DSSCs deliver a remarkable power conversion efficiency of 22.1%, an open circuit\u0000voltage of 1 V and a power output of 88.5 μW cm–2\u0000at 1000 lux, under illumination from a deltron\u0000LED light.\u0000\u0000\u0000\u0000 Cobalt based non-volatile electrolytes are efficient candidates that can replace the\u0000conventional volatile electrolytes in DSSCs. Further research into this new type of electrolyte could\u0000pave ways to deliver high open circuit voltage as well as good current density with high stability. \u0000","PeriodicalId":18543,"journal":{"name":"Micro and Nanosystems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42019908","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
Investigating Fill Factor Effect on Brillouin Zone of Metamaterial-based 2D Photonic Crystal 填充因子对超材料基二维光子晶体布里渊区影响的研究
Micro and Nanosystems Pub Date : 2021-02-10 DOI: 10.2174/1876402913666210210155312
A. Deyasi, Ratul Ghosh, P. Chakraborty, Anwesha Adhikary, A. Sarkar
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