2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV)最新文献

SIMS and auger investigation of thin a-SiC and a-SiC:H films by Up-Down sputtering DC magnetron, impact on optical properties 采用上下溅射直流磁控管对a-SiC和a-SiC:H薄膜进行了SIMS和螺旋钻的研究，对其光学性能的影响

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997619

M. Ouadfel, A. Keffous, A. Cheriet, C. Yaddaden, N. Gabouze, Y. Belkacem, A. Khelloufi, H. Menari, M. Siad

引用次数: 3

Preparation and intercalation reactions of nano-structural materials, Mn-Al LDH 纳米结构材料Mn-Al LDH的制备及其插层反应

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997598

S. Hamouda, Salima Bouteraa, M. Sellami, N. Bettahar

{"title":"Preparation and intercalation reactions of nano-structural materials, Mn-Al LDH","authors":"S. Hamouda, Salima Bouteraa, M. Sellami, N. Bettahar","doi":"10.1109/NAWDMPV.2014.6997598","DOIUrl":"https://doi.org/10.1109/NAWDMPV.2014.6997598","url":null,"abstract":"Hydrotalcite (HT) or hydrotalcite-like compounds (HTlc) are layered double hydroxides belonging to the class of anionic clays. The structure of these compounds are very similar to that of brucite, Mg(OH)2, where some of Mg2+ represented as [M(II)] are isomorphously replaced by Al3+ represented as [M(III)] and the net positive charge is compensated by the inter-layered exchangeable anion (An-). LDH has been receiving increasing attention in recent years, owing to its potential technological applications such as catalysis, electrode, optical memory, separator, adsorbent, precursor for composite materials, and ion exchange. The general formula of these compounds can be represented as: [M(II)1-xM(III)x(OH)2]·Anx/n·mH2O with M(II) and M(III) as metal cations and An- as exchangeable anion. LDHs also possess relatively large surface areas and high anion-exchange capacities. Because of these properties, LDHs have been studied for removing toxic anionic species from aqueous systems. Thermal decomposition of these materials by calcination above 420°C results in the formation of high surface area basic mixed oxides which are reported to be potential candidates in catalyzing various reactions involved in the synthesis of a variety of fine chemicals. Indeed at this temperature, the as formed mixed oxides solid solution can regenerate upon rehydratation the HT structure with the suitable anions present in solution. Therefore, this so-called reconstruction process may be used to improve the sorption of anionic species. The LDH has been synthesized by the coprecipitation method at pH constant. The material has been obtained with [Mn/Al] molar ratio of 2.0. The product is characterized by X-ray diffraction (XRD), spectroscopy infra red (FTIR), and differential thermal analysis / thermo gravimetric analysis (DTA/TG). Dosages of polluted solutions have been realized by spectrometry UV visible.","PeriodicalId":149945,"journal":{"name":"2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116468848","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: 4

Effect of molecular weight of monomer on the processes of phase separation during the elaboration of composite materials type PDLC 复合材料型PDLC制备过程中单体分子量对相分离过程的影响

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997613

Z. H. Belaid, A. Berrayah, F. Abdoune, L. Méchernène, L. Zair, Ulrich Maschke

引用次数: 1

Improvement of the photovoltaic conversion efficiency using nanostructuring in intermediate-band photovoltaic solar cells 利用纳米结构提高中波段光伏太阳能电池的光电转换效率

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997594

H. Mammar, A. Benmansour, M. Bouzaki

{"title":"Improvement of the photovoltaic conversion efficiency using nanostructuring in intermediate-band photovoltaic solar cells","authors":"H. Mammar, A. Benmansour, M. Bouzaki","doi":"10.1109/NAWDMPV.2014.6997594","DOIUrl":"https://doi.org/10.1109/NAWDMPV.2014.6997594","url":null,"abstract":"Nanostructuring is one of the most developed technologies that are able to improve considerably the photovoltaic conversion for low cost. This approach removes certain limitations of current technology; the photons that have low energy and do not participate in the photovoltaic conversion. Also, the photons that have a high energy that sell their excess energy in phonons' form. This work focuses on intermediate band solar cells introduced by material with a high-energy gap, an intermediate energy level, by quantum dots or quantum wells of some nanometers. This study attempts to show the great interest of this approach by calculating first, the efficiency limits of solar cell Shockley and interests in the intermediate-band photovoltaic solar cells approach by studying the parameters affecting their performances as well as the choice of materials and energy level of the nanostructure. All this, is achieved through the simulation software Matlab. The mathematical model developing stretches of photon emission by sun until the photovoltaic conversion in the semiconductor material.","PeriodicalId":149945,"journal":{"name":"2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133319128","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

Study of a photovoltaic system connected to the network and simulated by the code PVSYST 光伏并网系统的研究，并通过代码PVSYST进行仿真

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997605

Chadel Meriem, Benyoucef Boumdiene, Chadel Asma, Bouzaki Mustapha Mohamed, Soufi Aicha

引用次数: 11

Dielectric and electrical properties of PANI composite films 聚苯胺复合薄膜的介电性能和电学性能

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997612

D. Mezdour, M. Tabellout, J. Bardeau, S. Sahli

引用次数: 1

Effect of ecological treatment on adhesion of woven flax fibers in epoxy matrix 生态处理对亚麻织物在环氧基体中附着力的影响

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997596

A. Triki, M. Karray, C. Poilâne, P. Picart, M. Gargouri

{"title":"Effect of ecological treatment on adhesion of woven flax fibers in epoxy matrix","authors":"A. Triki, M. Karray, C. Poilâne, P. Picart, M. Gargouri","doi":"10.1109/NAWDMPV.2014.6997596","DOIUrl":"https://doi.org/10.1109/NAWDMPV.2014.6997596","url":null,"abstract":"Surface treatment of woven flax fibers was investigated as means of improving their adhesion in epoxy matrix. Flax fibers were treated in two ways : (i) with enzymatic treatments using pectinase enzymes and (ii) with pectinase enzymes/detergent, respectively. For this reason, dielectric measurements were performed in the frequency range from 10-1 Hz to 106 Hz and temperature interval from 40 °C to 200 °C. Studies of dielectric relaxations in these composites revealed the presence of three relaxation processes namely the orientation polarization imputed to the presence of polar water molecules in flax fibers, the relaxation process associated with conductivity occurring as a result of the carriers charges diffusion noted for high temperature above glass transition and low frequencies, and interfacial polarization effect or Maxwell-Wagner-Sillars (MWS) relaxation that is attributable to the accumulation of charges at the flax fibers/epoxy resin interfaces. Analysis of this latter using the Havriliak-Negami model revealed that the adhesion fibers/matrix was improved by the addition of the detergent treatment to the enzymatic one.","PeriodicalId":149945,"journal":{"name":"2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121362135","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

Innovative emitter design for low-cost silicon based heterostructure solar cells 低成本硅基异质结构太阳能电池的创新发射极设计

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997604

M. Boumaour, A. Bahfir, S. Sali, S. Kermadi, L. Zougar, N. Ouarab

引用次数: 3

Electrostatic actuation of a silicon membrane to control the injected fluid volume by a micro pump 静电驱动硅膜，通过微泵控制注入流体的体积

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997607

N. Benmoussa, A. Guen, B. Bouazza, R. Otmani

{"title":"Electrostatic actuation of a silicon membrane to control the injected fluid volume by a micro pump","authors":"N. Benmoussa, A. Guen, B. Bouazza, R. Otmani","doi":"10.1109/NAWDMPV.2014.6997607","DOIUrl":"https://doi.org/10.1109/NAWDMPV.2014.6997607","url":null,"abstract":"This paper is to study the phenomenon of electrostatic actuation of a silicon membrane for injecting a sufficient quantity of fluid and in particular medication with a micro pump. The latter becomes a void of first choice for the treatment of diseases such as diabetes that requires the use of a syringe for insulin injection. With the development of MEMS technology, the injection of insulin is transmitted through a micro pump located outside the human body and connected to a subcutaneous cannula to control the dosage depending on the need body. The idea is to take the patient's blood glucose and compared with a reference value. Based on the obtained difference, an electronic system calculates the volume of insulin and the number of units required to be injected to stabilize blood glucose levels. The micropump is constituted by a silicon membrane electrostatically actuated by a DC voltage V. This actuation causes deformation of the membrane leading to the opening of the first micro valve and the introduction of a unit volume in the chamber internal micro pump through the first pipe. The annulment of the voltage V leads to the return of the membrane at equilibrium. This causes the closure of the first valve and the opening of the second micro valve which will inject the fluid into the second pipe.","PeriodicalId":149945,"journal":{"name":"2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132128356","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

Evidence of lateral coupling phenomenon in self-assembled InAs/InP(001) quantum dots characterized by photoluminescence spectroscopy (PLS) 光致发光光谱(PLS)表征自组装InAs/InP(001)量子点中横向耦合现象的证据

2014 North African Workshop on Dielectic Materials for Photovoltaic Systems (NAWDMPV) Pub Date : 2014-12-29 DOI: 10.1109/NAWDMPV.2014.6997602

F. Besahraoui, M. Bouslama, M. Ghafour, Z. Lounis, K. Hamaida

引用次数: 0