结晶过程及技术期刊(英文)最新文献_第9页

Preparation and Performance Research of CuInSe 2 Materials Applied in Solar Cell 太阳能电池用cuinse2材料的制备及性能研究

结晶过程及技术期刊(英文) Pub Date : 2012-10-17 DOI: 10.4236/JCPT.2012.24020

Xuewen Wang, Y. Zhang, Z. Deng, Yujue Wang, Zidong Wang, I. Shih

{"title":"Preparation and Performance Research of CuInSe 2 Materials Applied in Solar Cell","authors":"Xuewen Wang, Y. Zhang, Z. Deng, Yujue Wang, Zidong Wang, I. Shih","doi":"10.4236/JCPT.2012.24020","DOIUrl":"https://doi.org/10.4236/JCPT.2012.24020","url":null,"abstract":"At present, CuInSe2 (referred to as CIS) semiconductor has become one of the hot points in solar cell field at home and abroad for its excellent performances, such as direct bandgap, high light absorption coefficient, high photoelectric conversion efficiency and long-term stability. In this paper, the CIS bulk materials are prepared by the horizontal Bridgman method with double-heat sources, the crystal structure, microstructure morphology and composition of the samples are analyzed in X-ray diffraction instrument (XRD) and scanning electronic microscope (SEM) with Energy Dispersive X-ray Spectrum (EDX), and surface electrical state and electrical properties of the samples are characterized in X-ray photoelectron spectroscopy (XPS) and four point resistivity test system. The results show that the CIS crystal was grown, and that the conductive performance of the samples is good which display the characteristics of p-type semiconductor. Furthermore, a thin film CIS sample was obtained by argon ion-beam scanning bombardment, and it has high solar energy absorptivity and the bandgap of 0.99 eV analyzed in Ultraviolet-visible Spectrum that is suitable for solar cell. Keywords: Solar","PeriodicalId":64440,"journal":{"name":"结晶过程及技术期刊(英文)","volume":"18 1","pages":"142-145"},"PeriodicalIF":0.0,"publicationDate":"2012-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70941058","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

On Diffusive Confining a Galvanic Crystallization out of Molten Salts 熔盐中电偶结晶的扩散约束

结晶过程及技术期刊(英文) Pub Date : 2012-10-17 DOI: 10.4236/JCPT.2012.24021

A. Shimkevich

{"title":"On Diffusive Confining a Galvanic Crystallization out of Molten Salts","authors":"A. Shimkevich","doi":"10.4236/JCPT.2012.24021","DOIUrl":"https://doi.org/10.4236/JCPT.2012.24021","url":null,"abstract":"The electron-energy band structure of electric Double Layer (DL) between a molten salt and metal electrode (an anode or cathode) is studied for the electrodepositing crystallization process when the width of DL metal part is less than the one in the molten salt. It is shown that just the molten-salt part of the double layer confines a rate of electrodepositing process. The reason of this is a neutralization of depositing ions into the molten-salt near the electrode and hence their diffusively confined motion in a density gradient field. It is important to minimize the electrodepositing potential for effective component crystallization out of the molten salt and its exchange process including selective extracting of salt components by their crystallization on electrodes of galvanic circuit. It is shown that this can be carried out by means of fine and controllable variation of reduction-oxidation (RedOx) potential of the non-stoichiometric salts. A possible application of a potentiometer for monitoring and managing the salt composition is considered. For this, one uses precise methods of electric-motion-force and coulometer titration by solid electrolyte(for example, M+–β ”–Al2O3) of the basic salt metal (M。) as a reduction agent in the molten-salt solution.","PeriodicalId":64440,"journal":{"name":"结晶过程及技术期刊(英文)","volume":"2 1","pages":"146-151"},"PeriodicalIF":0.0,"publicationDate":"2012-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70941074","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

Growth and Characterization of Holmium Oxalate Heptahydrate Crystals 七水合草酸钬晶体的生长与表征

结晶过程及技术期刊(英文) Pub Date : 2012-10-17 DOI: 10.4236/JCPT.2012.24019

B. Want, F. Dar

引用次数: 4

Growth, Crystal Structure and Characterization of a New Single Crystal: Lithium Sodium Acid Phthalate (LiNaP), for Third Order Nonlinear Optical Applications 用于三阶非线性光学应用的新型单晶:邻苯二甲酸锂钠(LiNaP)的生长、晶体结构和表征

结晶过程及技术期刊(英文) Pub Date : 2012-10-17 DOI: 10.4236/JCPT.2012.24018

B. Sivakumar, S. G. Raj, G. R. Kumar, R. Mohan

{"title":"Growth, Crystal Structure and Characterization of a New Single Crystal: Lithium Sodium Acid Phthalate (LiNaP), for Third Order Nonlinear Optical Applications","authors":"B. Sivakumar, S. G. Raj, G. R. Kumar, R. Mohan","doi":"10.4236/JCPT.2012.24018","DOIUrl":"https://doi.org/10.4236/JCPT.2012.24018","url":null,"abstract":"A new alkali metallo-organic single crystal of Lithium Sodium Acid Phthlate (LiNaP) complex has been synthesized from aqueous solution in the equimolar ratio 3:1:2. Transparent and bulk single crystals of dimension 9 × 4 ×2 mm3 have been grown from the conventional slow-cooling technique. The crystal structure of the compound has been solved from single crystal X-ray diffraction. The compound 2[C8H4O3]4-Li3+Na+ crystallizes in triclinic system with a space group of Pī having cell dimensions a = 7.5451(2) ? b = 9.8422(3) ? c = 25.2209(7) ? α = 80.299(2); β = 89.204(2); γ = 82.7770(10). FTIR measurement was carried out fo? LiNaP to study the vibrational structure of the compound. The various functional groups present in the molecule and the role of H-bonds in stabilizing the crystal structure of the compound have been explained. Optical absorption properties were studied for the grown crystal using UV-Vis-NIR spectrum. Thermal measurements were carried out for LiNaP to determine the thermal strength as well as to ascertain the hydrated nature of the crystal. Third order nonliner optical studies have also studied by Z-scan techniques. Nonlinear absorption and nonlinear refractive index were found out and the third order bulk susceptibility of compound was also estimated. The results of all studies have been discussed in detail.","PeriodicalId":64440,"journal":{"name":"结晶过程及技术期刊(英文)","volume":"2 1","pages":"130-136"},"PeriodicalIF":0.0,"publicationDate":"2012-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70940999","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: 9

Investigation of Crystallization Kinetics in Glassy Se and Binary Se98M2 (M=Ag, Cd, Zn) Alloys Using DSC Technique in Non-Isothermal Mode 非等温模式DSC技术研究玻态Se和二元Se98M2 (M=Ag, Cd, Zn)合金结晶动力学

结晶过程及技术期刊(英文) Pub Date : 2012-10-17 DOI: 10.4236/JCPT.2012.24025

C. Dohare, N. Mehta

引用次数: 7

Pyro and Kinetic Studies of Barium Oxalate Crystals Grown in Agar Gel 琼脂凝胶生长草酸钡晶体的热动力学研究

结晶过程及技术期刊(英文) Pub Date : 2012-10-17 DOI: 10.4236/JCPT.2012.24023

P. Dalal, K. B. Saraf, N. Shimpi, N. R. Shah

引用次数: 19

Fourier Transforms of Tubular Objects with Spiral Structures 螺旋结构管状物体的傅里叶变换

结晶过程及技术期刊(英文) Pub Date : 2012-10-17 DOI: 10.4236/JCPT.2012.24024

G. B. Mitra

{"title":"Fourier Transforms of Tubular Objects with Spiral Structures","authors":"G. B. Mitra","doi":"10.4236/JCPT.2012.24024","DOIUrl":"https://doi.org/10.4236/JCPT.2012.24024","url":null,"abstract":"Crystal structures of several naturally occurring minerals are known to contain various deformities such as cones, cylinders, and tapered hollow cylinders with different apex angles, which have been described as solid and hollow cones, “cups”, “lampshades” as well as rolled cylindrical planes. The present study was undertaken to determine how these different shapes within a crystal structure can be explained. Since the usual method of observing them is by either X-ray and electron diffraction or electron microscopy, we investigated Fourier transforms of these forms, which were considered in terms of spirals with varying radii. Three types of spirals were considered, namely: 1) Archimedean spiral; 2) Involute of a circle or power spiral and 3) Logarithmic spiral. Spiraling caused the radius r to be modified by a factor f(θ), so that r becomes rf(θ), where f(θ) = θ for Archimedean helix, θn for power helices like θ1/2 for Fermat’s helix, θ-1 for hyperbolic helix and eθ or e-θ for logarithmic helix, r and θ being co-ordinates of the map on which the helix has to be drawn, f(θ) is unaffected by the magnitude of r. Expressions have been derived that explain the diffraction of structures containing the distortions described above, and bring all of these phenomena under one “umbrella” of a comprehensive theory.","PeriodicalId":64440,"journal":{"name":"结晶过程及技术期刊(英文)","volume":"2 1","pages":"161-166"},"PeriodicalIF":0.0,"publicationDate":"2012-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70941248","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

Continuous Melt Suspension Crystallization of Phosphoric Acid 磷酸的连续熔体悬浮结晶

结晶过程及技术期刊(英文) Pub Date : 2012-07-26 DOI: 10.4236/JCPT.2012.23014

A. Chen, Jia-wen Zhu, Bin Wu, Kui Chen, Lijun Ji

引用次数: 4

Crystallization, Transport and Magnetic Properties of the Amorphous (Fe 1-x Mn x ) 75 P 15 C 10 Alloys 非晶态(Fe 1-x Mn x) 75p15c10合金的结晶、输运和磁性能

结晶过程及技术期刊(英文) Pub Date : 2012-07-26 DOI: 10.4236/JCPT.2012.23013

M. Kamruzzaman, M. Karal, D. Saha, F. A. Khan

{"title":"Crystallization, Transport and Magnetic Properties of the Amorphous (Fe 1-x Mn x ) 75 P 15 C 10 Alloys","authors":"M. Kamruzzaman, M. Karal, D. Saha, F. A. Khan","doi":"10.4236/JCPT.2012.23013","DOIUrl":"https://doi.org/10.4236/JCPT.2012.23013","url":null,"abstract":"The amorphous (Fe1-xMnx)75P15C10 (0 ≤ x ≥ 0.30) alloys were prepared by the standard melt spinning technique and investigated their crystallization, thermal, transport and magnetic properties. Crystallization was observed from 400℃ to 650℃ with an interval 50℃within 30 minutes annealing time by XRD. The as-cast samples were amorphous in nature. Annealing 400℃ to 450℃ samples showed the mixed bcc Fe and amorphous structures. The lattice parameter ‘a’ was varied from 2.855 to 2.859 ? but above 450℃, samples contained hexagonal, FeP and FeC structures. The lattice parameters ‘a’ and ‘c’ were varied from (5.016-5.036) ? and (13.575-13.820) ? , respectively. Average crystallite size was found to vary from 8 to 48 nm. Crystallization temperature and weight change were observed by differential thermal analysis and thermogravimetric analysis, respectively. Crystallization temperature was increased with increasing Mn content. Resistivity was increased above and bellows the Curie temperature. Real permeability remained almost constant upto around 106 Hz for of all samples after that it was decreased with increasing frequency and it was also decreased with Mn, whereas imaginary permeability was increased sharply above frequency 107 Hz. The value of saturation magnetization was found to decrease with increment Mn.","PeriodicalId":64440,"journal":{"name":"结晶过程及技术期刊(英文)","volume":"02 1","pages":"105-110"},"PeriodicalIF":0.0,"publicationDate":"2012-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70940757","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: 2

Continuous Reaction Crystallization of Struvite in a DTM Type Crystallizer With Jet Pump of Ascending Suspension Flow in a Mixing Chamber–Kinetic Approach of the Process 混合室上升悬浮流喷射泵在DTM型结晶器中鸟粪石连续反应结晶——过程动力学研究

结晶过程及技术期刊(英文) Pub Date : 2012-07-26 DOI: 10.4236/JCPT.2012.23012

Mazienczuk Agata, M. Andrzej, Piotr Krzysztof, Wierzbowska Boguslawa

引用次数: 2