The European Physical Journal Applied Physics最新文献_第4页

Investigation of the relationship between porosity and luminescent properties of porous silicon 多孔硅的孔隙率与发光性能关系的研究

The European Physical Journal Applied Physics Pub Date : 2023-04-27 DOI: 10.1051/epjap/2023230001

A. Lenshin, Yaroslav A. Peshkov, O. V. Chernousova, S. Kannykin, D. Minakov

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Transition Metal doping and co-doping effect on electronic and magnetic properties of zb-ScN. 过渡金属掺杂及共掺杂对zb-ScN电子和磁性能的影响。

The European Physical Journal Applied Physics Pub Date : 2023-04-25 DOI: 10.1051/epjap/2023220290

Mohamed Amine Réda, Redouane Rami, Lalla Btissam Drissi, I. Aberdane, R. Ahl Laamara

{"title":"Transition Metal doping and co-doping effect on electronic and magnetic properties of zb-ScN.","authors":"Mohamed Amine Réda, Redouane Rami, Lalla Btissam Drissi, I. Aberdane, R. Ahl Laamara","doi":"10.1051/epjap/2023220290","DOIUrl":"https://doi.org/10.1051/epjap/2023220290","url":null,"abstract":"The ab-initio study of electronic and magnetic properties and Curie temperature of Transition Metal (TM) doped ScN diluted magnetic semiconductor (DMS) are calculated using LDA method implemented in (KKR-CPA). The totl and partial density of states (DOS) of pure zinc blend ScN as well as TM doped compounds are plotted for different concentrations of dopants. It is shown that the Sc substituted by TM materials induces a half metallic character in the system for different concentrations except for Sc1−xCoxN (x > 14%) and Sc1−xNixN (x > 6%). Also, the Sc1−xVxN, Sc1−xCrxN , Sc1−xMnxN compounds are stable in ferromagnetic states, while Sc1−xCoxN and Sc1−xNixN compounds prefer anti-ferromagnetic phase. To improve this latest result, doping ScN with double impurities (Co, Ni) is also investiageted. As a result, Sc1−x−yCoxNiyN is more stable in ferromagnetic state for different values of concentration (except for x = y = 10%). The mechanism of exchange interaction is also discussed for all doped systems. High curie temperature are found for most concentrations. The present results suggest TM doped Sc nitride as potential candidate for spintronic devices.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122977456","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

First steps of silicene growth on an insulating thin-film: effect of the substrate temperature 绝缘薄膜上硅烯生长的第一步:衬底温度的影响

The European Physical Journal Applied Physics Pub Date : 2023-04-13 DOI: 10.1051/epjap/2023230004

Khalid Quertite, H. Enriquez, N. Trcera, P. Lagarde, A. Bendounan, A. Mayne, G. Dujardin, A. El kenz, A. Benyoussef, A. Kara, H. Oughaddou

{"title":"First steps of silicene growth on an insulating thin-film: effect of the substrate temperature","authors":"Khalid Quertite, H. Enriquez, N. Trcera, P. Lagarde, A. Bendounan, A. Mayne, G. Dujardin, A. El kenz, A. Benyoussef, A. Kara, H. Oughaddou","doi":"10.1051/epjap/2023230004","DOIUrl":"https://doi.org/10.1051/epjap/2023230004","url":null,"abstract":"Silicene is a two-dimensional (2D) material with very promising electronic properties for applications in silicon modern technology. However, the first experimental synthesis of silicene on metallic surfaces shows strong interactions between the silicene and its substrate, which can alter its electronic properties. Here, we report on the first steps of silicene growth on an insulating surface (NaCl) using scanning tunneling microscopy (STM), low energy electron diffraction (LEED), Auger electron spectroscopy (AES), and angle-resolved photoemission spectroscopy (ARPES). We demonstrate the importance of temperature annealing in the growth of silicene on NaCl. Indeed, after deposition of silicon on the NaCl/Ag(110) surface, we observe the following stages: i) at room temperature, the silicon atoms accumulate on top of the NaCl layer without any given order. ii) At 60°C, silicon dimers start to grow on the NaCl. iii) At 140°C, these dimers form a 2D silicon chains on the surface. iv) After a post-annealing at 200°C, evident 2D silicon nanoribbons with a honeycomb-like structure were observed. Our results of the first silicene growth stages on an insulating surface are a necessary step for exploring its growth mechanism further.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123543941","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

In situ TEM study of crystals growth in amorphous Ti-Zr-Ni films at electron beam irradiation 电子束辐照下非晶Ti-Zr-Ni薄膜晶体生长的原位透射电镜研究

The European Physical Journal Applied Physics Pub Date : 2023-04-13 DOI: 10.1051/epjap/2023220293

A. Bagmut, I. Bagmut, A. Devizenko

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The discharged characteristics of capacitively coupled Ar/N2 plasma driven by the dual frequency 8 / 100 MHz 研究了8 / 100 MHz双频驱动电容耦合Ar/N2等离子体放电特性

The European Physical Journal Applied Physics Pub Date : 2023-04-07 DOI: 10.1051/epjap/2023220332

Yin Guiqin; Zhou Youyou; Yuan Qianghua

{"title":"The discharged characteristics of capacitively coupled Ar/N2 plasma driven by the dual frequency 8 / 100 MHz","authors":"Yin Guiqin; Zhou Youyou; Yuan Qianghua","doi":"10.1051/epjap/2023220332","DOIUrl":"https://doi.org/10.1051/epjap/2023220332","url":null,"abstract":"The discharged characteristics of capacitively coupled Ar/N2 plasma driven by 8 MHz and 100 MHz are investigated at low pressure. The mean electron temperatures at central plasma area are discussed by the corona model with the high frequency (HF) power increase (low frequency (LF) power is fixed) and argon increase. The second positive system (SPS) of nitrogen molecular (C3Πu→B3Πg) from 370 nm to 410 nm in the N2 optical emission spectrum is used to calculate the rotational and vibrational temperature of nitrogen molecular. These results show that the mean electron temperatures both decrease with the argon increase and the HF power increase. The rotational temperature increase with argon increase and decrease with the HF power increase. The particle-in-cell/Monte Carlo (PIC/MC) method is used to calculate the ion density, electron temperature and electron energy probability function (EEPF) according to experimental conditions. These results show that the electron temperatures both decrease with HF power increase and argon content increase, which are agreed with the spectral results. The EEPF show that the low and high energy electrons both increase with the HF power increase and argon increase. The energy exchange by these higher energy electrons is large, which result in the decrease of electron temperatures.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121906053","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

Effect of the physical aging on the secondary β relaxation process in a La-based metallic glass 物理时效对la基金属玻璃β二次弛豫过程的影响

The European Physical Journal Applied Physics Pub Date : 2023-04-07 DOI: 10.1051/epjap/2023230031

Xiyang Ma, Jingqi Zhang, G. Lyu, J. Qiao

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Perovskite Materials for Photovoltaics: A Review 钙钛矿光伏材料研究进展

The European Physical Journal Applied Physics Pub Date : 2023-04-05 DOI: 10.1051/epjap/2023230023

K. Beepat, Susheel Kumar, Ankush Sharma, D. Sharma, D. Pathak, Jean Michel Nunzi

{"title":"Perovskite Materials for Photovoltaics: A Review","authors":"K. Beepat, Susheel Kumar, Ankush Sharma, D. Sharma, D. Pathak, Jean Michel Nunzi","doi":"10.1051/epjap/2023230023","DOIUrl":"https://doi.org/10.1051/epjap/2023230023","url":null,"abstract":"Photovoltaic is among the most propitious renewable energy sources for meeting global energy demands. Owing to their simple solution synthesis procedure, lightweight wearable, power conversion efficiency, flyable, ready to deploy for extremist lightweight space, and reduced cost of constituent materials, perovskite solar cells have gotten huge interest in the past years. Because of high-quality perovskite film attained by low-temperature fabrication methods, as well as the development of appropriate interface and electrode materials, the effectiveness of perovskite solar cells (PSCs) has topped 25% efficiency in recent years. Furthermore, perovskite solar cells' stabilization has gotten a lot of well-deserved recognition. The future of various carbon, tin, and polymer materials-based perovskite solar cells has even been explored, as well as their industrial expansion possibility are also discussed. This review paper summarizes important accomplishments to date, highlights the unique properties of these perovskites that have led to their fast upsurge, and highlights the problems that must be overcome for perovskite solar cells to be developed and commercialized successfully.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114077843","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

Eco-friendly synthesized few layered graphene: Main physico-chemical nanocharacterizations for optical quenching applications 环保合成的层状石墨烯:光学淬火应用的主要物理化学纳米表征

The European Physical Journal Applied Physics Pub Date : 2023-04-04 DOI: 10.1051/epjap/2023220285

M. Khenfouch, R. Ndimba, E. Ismail, M. Hamzah, P. Mbule, S. Sarma, R. Erasmus, B. Mothudi, M. Dhlamini, M. Maaza

引用次数: 0

Effect of Rashba spin-orbit coupling interaction on energy states of Silicon disk-shaped quantum dot Rashba自旋轨道耦合相互作用对硅盘状量子点能态的影响

The European Physical Journal Applied Physics Pub Date : 2023-03-21 DOI: 10.1051/epjap/2023230014

Moulay Said El Kazdir, M. Rzaizi, K. El Assali, D. Abouelaoualim

{"title":"Effect of Rashba spin-orbit coupling interaction on energy states of Silicon disk-shaped quantum dot","authors":"Moulay Said El Kazdir, M. Rzaizi, K. El Assali, D. Abouelaoualim","doi":"10.1051/epjap/2023230014","DOIUrl":"https://doi.org/10.1051/epjap/2023230014","url":null,"abstract":"Silicon quantum dots (QDs) are considered an excellent platform for spin qubits due to their weak spin-orbit interaction (SOI). Indeed, due to quantum confinement, novel spin properties arise from the SOI. In this work, we have studied the influence of the Rashba SOI and the confinement potential on the energy spectrum of an electron confined in a Silicon disk-shaped quantum dot, in the presence of an external magnetic field. The effects of the QD size, the confinement potential and the Rashba alpha coefficient on the energy levels are also studied. We used the effective mass approximation to determine the energy levels and their wave functions for different states. The results are presented as a function of the magnetic field in the presence and absence of SOI. We find that the energy levels of the electrons behave very differently depending on the magnetic field. The energy of all states changes with increasing magnetic field and each energy level splits into two and the energy difference between these two levels also increases with magnetic field, in the presence and absence of SOI. The energy levels are proportional to the Rashba alpha coefficient and inversely proportional to the radius of the QD.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"1996 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128630736","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

Investigation of the electronic and thermoelectric properties of nitrogen chains doping SWCNT: Ab initio study 氮链掺杂swcnts的电子和热电性质研究:从头算研究

The European Physical Journal Applied Physics Pub Date : 2023-03-21 DOI: 10.1051/epjap/2023230013

R. Takassa, A. E. Mouncharih, O. Farkad, F. Elfatouaki, S. Hassine, A. Ouahdani, E. Ibnouelghazi, D. Abouelaoualim

{"title":"Investigation of the electronic and thermoelectric properties of nitrogen chains doping SWCNT: Ab initio study","authors":"R. Takassa, A. E. Mouncharih, O. Farkad, F. Elfatouaki, S. Hassine, A. Ouahdani, E. Ibnouelghazi, D. Abouelaoualim","doi":"10.1051/epjap/2023230013","DOIUrl":"https://doi.org/10.1051/epjap/2023230013","url":null,"abstract":"In this work, we investigate the electronic and thermoelectric properties of CN, C 2 N 2 and C 4 N 2 nanotubes resulting from doping of Nitrogen atoms, three and two N-zigzag chains on small (3,3) single walled carbon nanotube (SWCNT) respectivelly. All calculations were performed via DFT theory using WIEN2K code. For the calculations of electronic structure, we perform GGA with TB-mBJ exchange potential and for the thermoelectric calculations were performed in semi-classical Boltzmann transport theory. Our results show that all structures are energetically stable. The electronic behaviour of (3,3) SWCNT transforms from semiconductor to metal in CN nanotube and to topological Weyl semimetal (WSM) state for C2N2 and C4N2 nanotubes. The thermoelectric properties such as electrical conductivity, Seebeck coefficient and power factor are calculated, the results show that the N-doping enhancing the thermoelectric properties of pristine nanotube. The electronic and thermoelectric properties of nitrogen doping SWCNT show promising candidate toward electronic and thermoelectric devices.","PeriodicalId":301303,"journal":{"name":"The European Physical Journal Applied Physics","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116863758","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