Current Nanoscience最新文献_第6页

NBTI Effect Survey for Low Power Systems in Ultra-nanoregime 超低功率系统的NBTI效应研究

4区材料科学

Current Nanoscience Pub Date : 2023-10-12 DOI: 10.2174/0115734137252023230919054547

None Kajal, Vijay Kumar Sharma

{"title":"NBTI Effect Survey for Low Power Systems in Ultra-nanoregime","authors":"None Kajal, Vijay Kumar Sharma","doi":"10.2174/0115734137252023230919054547","DOIUrl":"https://doi.org/10.2174/0115734137252023230919054547","url":null,"abstract":"Background: Electronic device scaling with the advancement of technology nodes maintains the performance of the logic circuits with area benefit. Metal oxide semiconductor (MOS) devices are the fundamental blocks for building logic circuits. Area minimization with higher efficiency of the circuits motivates the researchers of very large-scale integration (VLSI) design. Moreover, the reliability of digital circuits is one of the biggest challenges in VLSI technology. A major issue in reliability is negative bias temperature instability (NBTI) degradation. NBTI affects the efficiency and reliability of electronic devices. Method: This paper presents a review of NBTI physical-based mechanisms. NBTI's impact on VLSI circuits and techniques has been studied to mitigate and compensate for the effect of NBTI. Result: This review paper presents an idea to relate the NBTI and leakage mitigation techniques. This study gives an overview of the efficiency, complexity, and overhead of NBTI mitigation techniques and methodologies. Conclusion: This survey provides a brief idea about NBTI degradation by using reliability simulation. Moreover, the extensive aging effect is discussed in the paper.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136015610","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

Recent Progress in the Composites of Perovskite Nanocrystals and II-VI Quantum Dots: Their Synthesis, Applications, and Prospects 钙钛矿纳米晶体与II-VI量子点复合材料的研究进展:合成、应用与展望

4区材料科学

Current Nanoscience Pub Date : 2023-10-10 DOI: 10.2174/0115734137269553230919171016

Qiaoyun Wu, Rongrong Hu, Bobo Yang, Wenfang Peng, Mingming Shi, Yuefeng Li, Lin Cheng, Pan Liang, Jun Zou

{"title":"Recent Progress in the Composites of Perovskite Nanocrystals and II-VI Quantum Dots: Their Synthesis, Applications, and Prospects","authors":"Qiaoyun Wu, Rongrong Hu, Bobo Yang, Wenfang Peng, Mingming Shi, Yuefeng Li, Lin Cheng, Pan Liang, Jun Zou","doi":"10.2174/0115734137269553230919171016","DOIUrl":"https://doi.org/10.2174/0115734137269553230919171016","url":null,"abstract":"The remarkable photoelectric characteristics of perovskite nanocrystals (NCs), including high fault tolerance, tunable photoluminescence (PL) emission, and high carrier mobility, contribute to making them especially attractive for photonic and optoelectronic applications. Unfortunately, the poor environmental thermal and light stability set obstacles to their industrial applications. Over the past 40 years, II-VI semiconductor quantum dots (QDs) have achieved many important photophysics findings and optoelectronic applications. Compared with perovskite NCs, II-VI semiconductor QDs still have a relatively weaker molar absorbance coefficient. Whereas, significant enhancement of both the stability and the optical performance of the composites of perovskite NCs and II-VI QDs are of interest for photovoltaic and optoelectronic devices. The composites of perovskite NCs and II-VI QDs come in two primary types: core/shell structures and heterojunction structures. To better understand the composites of perovskite NCs and II-VI QDs, the approaches of synthesis methods, their optoelectronic properties, carrier dynamics and potential applications in solar cells, light emitting diodes (LEDs) and photodetectors are summarized. Furthermore, the unmet problems and the potential applications are also presented.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136361063","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

A Critical Review on Various Buffer Layers used to Enhance the Photovoltaic Performance of Organic Solar Cells 提高有机太阳能电池光电性能的缓冲层研究进展

4区材料科学

Current Nanoscience Pub Date : 2023-10-04 DOI: 10.2174/0115734137268768230919170012

S. Sreejith, J. Ajayan, N.V. Uma Reddy, Manikandan M., Radhika J.M

{"title":"A Critical Review on Various Buffer Layers used to Enhance the Photovoltaic Performance of Organic Solar Cells","authors":"S. Sreejith, J. Ajayan, N.V. Uma Reddy, Manikandan M., Radhika J.M","doi":"10.2174/0115734137268768230919170012","DOIUrl":"https://doi.org/10.2174/0115734137268768230919170012","url":null,"abstract":"Abstract: Due to the high need for sustainable energy sources, there has been a tremendous increase in SC (solar cell) production and research in recent years. Despite the fact that inorganic SC has led the SC consumer market due to its exceptional efficiency, its expensive and difficult manufacture method makes it unaffordable. Hence alternative technology for SC has been explored by researchers to overcome the draw backs of inorganic SC fabrication. OSC (organic solar cell) alternatively known as polymer SC has the advantage of having lightweight, low production cost, and simple device structure. During the last few years, significant attention has been given in order to overcome the material and technological barriers in OSC devices to make them commercially viable. Buffer layers play a significant part in improving the power conversion efficiencies in OSCs, thus it is necessary to comprehend the underlying microscopic mechanisms that underlie the advancements in order to support the current qualitative knowledge. In this review article, we have studied extensively the impact of different BLs (buffer-layer) in enhancing the PCE (power conversion efficiency) and absorption capabilities of OSCs.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"199 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135647355","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

Hydrothermally Synthesized Boletus Brucella-derived Carbon Quantum Dots as a Fluorescent Probe for the Detection of Vitamin B2 水热合成布鲁氏菌衍生碳量子点作为荧光探针检测维生素B2

4区材料科学

Current Nanoscience Pub Date : 2023-10-03 DOI: 10.2174/0115734137259719230921065320

Qiang Wan, Rong Li, Meiping Ren, Gang Ke

引用次数: 0

Surface-Enhanced Raman Scattering: A Promising Nanotechnology for Anti-Counterfeiting and Tracking Systems 表面增强拉曼散射:用于防伪和跟踪系统的有前途的纳米技术

4区材料科学

Current Nanoscience Pub Date : 2023-09-01 DOI: 10.2174/1573413718666220607164053

Khaled Alkhuder

{"title":"Surface-Enhanced Raman Scattering: A Promising Nanotechnology for Anti-Counterfeiting and Tracking Systems","authors":"Khaled Alkhuder","doi":"10.2174/1573413718666220607164053","DOIUrl":"https://doi.org/10.2174/1573413718666220607164053","url":null,"abstract":"Abstract: Surface-enhanced Raman Scattering (SERS) is a sensing method based on inelastic scattering of a laser beam by a reporter molecule absorbed on a plasmonic substrate. The incident laser beam induces a localized-surface plasmon resonance in the substrate, which generates an oscillating electromagnetic field on the substrate dielectric surface. Under the influence of this field, the reporter molecule absorbed on the plasmonic substrate starts to vibrate, causing inelastic scattering of the laser beam. The laser-induced electromagnetic field is also the main contributor to the enhancement observed in the intensity of the scattered light. Plasmonic substrates are nanostructured surfaces often made of noble metals. The surface enhancement of a plasmonic substrate is determined primarily by factors related to the substrate’s nano-architecture and its composition. SERS-based labeling has emerged as a reliable and sophisticated anti-counterfeiting technology with potential applications in a wide range of industries. This technology is based on detecting the SERS signals produced by SERS tags using Raman spectroscopy. SERS tags are generally made of a plasmonic substrate, a Raman reporter, and a protective coating shell. They can be engineered using a wide variety of materials and methods. Several SERS-based anticounterfeiting labels have been developed in the past two decades. Some of these labels have been successfully combined with identification systems based on artificial intelligence. The purpose of this review is to shed light on the SERS technology and the progress that has been achieved in the SERS-based tracking systems.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685709","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: 1

Synthesis and antibacterial activity of ultrasmall silver nanoparticles by pulsed laser ablation in deionized water 在去离子水中脉冲激光烧蚀制备超小银纳米颗粒及其抗菌活性

4区材料科学

Current Nanoscience Pub Date : 2023-08-31 DOI: 10.2174/1573413719666230831152658

Sarwin Yaseen Hussein, Tariq Abdul Hameed Abbas

{"title":"Synthesis and antibacterial activity of ultrasmall silver nanoparticles by pulsed laser ablation in deionized water","authors":"Sarwin Yaseen Hussein, Tariq Abdul Hameed Abbas","doi":"10.2174/1573413719666230831152658","DOIUrl":"https://doi.org/10.2174/1573413719666230831152658","url":null,"abstract":"Background: The main objective of this work is the synthesis and evaluation of silver nanoparticles (Ag NPs) by using pulsed laser ablation of a silver (Ag) target in deionized water and examining their antibacterial activity. Methods: Colloidal solutions of silver nanoparticles were prepared with different pulsed laser energies (620, 880, and 1000) mJ of wavelength 1064 nm and frequency 10 Hz. To determine their structure, optical, morphology, elemental composition, and infrared spectra, the synthesized Ag NPs were characterized using various high-throughput analytical techniques such as (UV-Vis) spectroscopy, transmission electron microgram (TEM), electron dispersive X-ray spectroscopy (EDX), Fourier transform infrared (FTIR) spectra, and Zeta potential. Results: The results show that the properties of synthesized Ag NPs depend much more on the laser energy. The laser energy can be used to control the properties of the prepared nanoparticles. Uniform distributions of spherical ultrasmall Ag NPs with an average size of (3) nm were obtained suspended in deionized water, which is the most effective size for antibacterial activity. However, the result indicated that the ablated Ag NPs were stable for 4 months in deionized water. The antibacterial activity of the colloidal solution of synthesized Ag NPs against Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus) bacteria was then examined using the agar-well diffusion method. Conclusion: It was found that the prepared nanoparticles exhibited strong activity against E. coli and S. aureus bacteria growth. The average zones of inhibition of Ag NPs were found to be about (26) m¬¬¬¬¬¬m for E. coli and (32) mm for S. aureus bacteria.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135890524","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 Characterization of Carbon Nano Sphere-doped Gd: Alpha Sb2O4Nanostructure for High-Performance Energy Storage Applications 碳纳米球掺杂Gd: Alpha sb2o4纳米结构的合成与表征

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-07-20 DOI: 10.2174/1573413719666230720161905

W. Nabgan, V. Adimule, Parashuram Laxminarayana, Kalpana Sharma, Nidhi Manhas

{"title":"Synthesis and Characterization of Carbon Nano Sphere-doped Gd: Alpha Sb2O4Nanostructure for High-Performance Energy Storage Applications","authors":"W. Nabgan, V. Adimule, Parashuram Laxminarayana, Kalpana Sharma, Nidhi Manhas","doi":"10.2174/1573413719666230720161905","DOIUrl":"https://doi.org/10.2174/1573413719666230720161905","url":null,"abstract":"\u0000\u0000To enhance the super capacitive properties of nanocomposites, the effective method is to combine carbon nanospheres with mesoporous structures with Gd3+:α-Sb2O4 inorganic nanocomposites (NC) to form hybrid electrodes. An as-prepared hybrid electrode material possesses increased energy density, high rate of reversibility and cyclic stability when incorporated in electrochemical cyclic voltammetric studies.\u0000\u0000\u0000\u0000In the present investigation, various wt % of C-nanospheres (Cx) (5 %, 10% and 20%) were decorated over Gd3+: α-Sb2O4 nanocomposites and were synthesized by coprecipitation method. XRD, SEM, EDX, UV-visible, and XPS are only a few of the analytical techniques used to describe the as-prepared hybrid nanocomposites. Electrochemical cyclic voltammetry was carried out in a 6M KOH solution, three-electrode system.\u0000\u0000\u0000\u0000The crystal structure and morphology of Cx: Gd3+@ α-Sb2O4 NC showed a mixed hexagonal phase and agglomerated tiny irregularly shaped morphology that appeared as the Cx concentration increased. Redshift in optical absorption peak appeared (near UV-edge), and the optical band gap (Eg) value increased from 3.53 eV to 3.65 eV. The electrochemical supercapacitor showed the highest specific capacitance of 989 F/g at the current density of 1 A/g for C20%:Gd3+@α-Sb2O4 NC compared with Cx:Gd3+@α-Sb2O4 (x = 5 % and 10 %) and undoped Gd3+:α-Sb2O4 NC. The change in phase angle and Rs value of 1.98 was attributed to the ideal supercapacitor properties. The cyclic stability after 5000 cycles with 79.71 % capacitive retention was exhibited by C20%:Gd3+@α-Sb2O4 NC.\u0000\u0000\u0000\u0000The present research introduces ease of synthesis of hybrid electrode materials possessing high active surface area, increased energy density, high cyclic stability, and reversibility in an aqueous solution.\u0000","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43375860","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

The Role Of Biosensors In Detection Of SARS-Cov-2: State-Of-The-Art And Future Prospects 生物传感器在SARS-Cov-2检测中的作用:现状和未来展望

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-07-14 DOI: 10.2174/1573413719666230714121859

A. Prabhakar, Deepti Verma, Nimisha Roy, Abhipsha Khadanga, Amar Dhwaj

{"title":"The Role Of Biosensors In Detection Of SARS-Cov-2: State-Of-The-Art And Future Prospects","authors":"A. Prabhakar, Deepti Verma, Nimisha Roy, Abhipsha Khadanga, Amar Dhwaj","doi":"10.2174/1573413719666230714121859","DOIUrl":"https://doi.org/10.2174/1573413719666230714121859","url":null,"abstract":"\u0000\u0000The world is fighting a pandemic so grave that perhaps it has never been witnessed before; COVID-19 is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). As of August 31st, 2022, the WHO declared the total number of confirmed cases was 599,825,400, with 6,469,458 confirmed deaths from 223 countries under the scourge of this deadly virus. The SARS-CoV-2 is a β-coronavirus, which is an enveloped non-segmented positive-sense RNA virus. It is a close relative of the SARS and MERS viruses and has probably entered humans through bats. Human-to-human transmission is very rapid. People in contact with the patient or even the carriers became infected, leading to a widespread chain of contamination. We are presenting a mini-review on the role of biosensors in detecting SARS-CoV-2. Biosensors have been used for a very long time for viral detection and can be utilized for the prompt detection of the novel coronavirus. This article aims to provide a mini-review on the application of biosensors for the detection of the novel coronavirus with a focus on cost-effective paper-based sensors, nanobiosensors, Field effect transistors (FETs), and lab-on-chip integrated platforms.\u0000","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47780617","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

Dermal Nanomedicines: Recent Progress and Advances 皮肤纳米药物:最新进展和进展

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-07-01 DOI: 10.2174/157341371904230330113735

Sunil Kumar, R. Rao

引用次数: 0

Metal and Metal Oxide Nanoparticles as Agents Against Human Infectious Viruses 金属和金属氧化物纳米颗粒作为抗人类传染性病毒的药剂

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-06-08 DOI: 10.2174/1573413719666230608112014

A. Tavakoli, Malihe Hamidzade, Saeed Motlaghzadeh, P. Khales, Danesh Aminpanah, S. Minaeian, S. M. Hosseini-Hosseinabad

引用次数: 0