21 research outputs found

    表面活性剂金属酞菁的合成及其光电性能研究

    No full text
    本文合成了八种新型的表面活性剂金属酞菁化合物(SMPc),并通过紫外可光谱、红外光谱及元素分析大呢感方法进行了表征。采用电沉积的方法将其沉积到GaAs、InP单晶电极表面,形成异质结型的有机一无机复合电极,初步探讨了其沉积作用机理,观察了SMPc一GaAs的光谱响应特性及扫描电镜,研究了这种复合电极在液结光电化学电池中的光伏行为,并尝试制作了固结夹心型的GaAs/SMPc/SnO2、InP/SMPc/SnO2复合型光伏电池,对其光电性能作了初步考察。Eight novel surfactant metallophalocyanine complexes (SMPc) were first synthesized and characterized by Unvisible spectroscopy, Infrared spectroscopy and element analysis, SMPc were deposited onto the surface of semiconductor GaAs, InP single crystal eclectrode through the electrodeposition method, forming organic-inorganic heterojunctions. The electrodeposition mechanism of SMPc was simply discus...学位:理学硕士院系专业:化学化工学院化学系_无机化学学号:YL00008

    碳环管的发现与生长机理初探

    No full text
    Ring tubes (tori) have been observed from the carbon soot. The sample was prepared in the pure nitrogen atmosphere by axcing the graphite electrodes, which was covered with aluminum film. Based on their TEM images, structural model and possible formation mechanism of the species were described

    液相化学腐蚀法用于碳纳米管的纯化及顶端开口研究

    No full text
    液相化学腐蚀法用于碳纳米管的纯化及顶端开口研究余荣清,程大典,詹梦熊,王育煌,郑兰荪(厦门大学化学系361005)碳纳米管作为纳米材料家族中一个新的成员,其潜在的重大应用前景引起了广泛重视。人们在合成制备及理论研究等方面进行了许多有益的探索[1~3]...国家自然科学基金;优秀中青年人才专项基

    多形态大尺寸碳纳米管的制备及电镜图像

    Get PDF
    多形态大尺寸碳纳米管的制备及电镜图像余荣清,詹梦熊,程大典,翟和生,杨士姚,黄荣彬,郑兰荪(厦门大学化学系、分析测试中心,厦门,361005)关键词碳纳米管,制备,电镜图像自Iijima[1]观察到由碳原子组成的纳米级管状物后,由于这种碳纳米管(ca..

    碳纳米管的制备与研究──STM图像

    No full text
    碳纳米管的制备与研究──STM图像余荣清,谢兆雄,詹梦熊,程大典,郑兰荪(厦门大学化学系厦门361005)碳纳米管作为单质碳的又一种结构形态,具有特殊的物化性能,并在N电子学、材料科S等领域有着广阔的应用前景I‘-‘1.而扫描隧道显微镜(STM)技术..

    黄鳝二价体的一种“类刷形染色体”现象

    No full text

    碳纳米管的激光溅射产生

    No full text
    碳纳米管的激光溅射产生程大典,余荣清,刘朝阳,张强,王育煌,黄荣彬,詹梦熊,郑兰荪(固体表面物理化学国家重点实验室,厦门大学化学系,厦门,361005)关键词碳纳米管,激光溅射,碳球Smalley等[1]曾以脉冲激光束在超声分子束喷口的喉道处蒸发石墨..

    Photoelectric Property For C_(70) on GaAs Electrode

    Get PDF
    在光电化学电池中测定C_(70)球烯在gAAS电极上所形成异质结的光伏效应,并研究不同介质电对和C_(70)薄膜厚度对光伏效应的影响。结果表明,1)I_2/是较佳的介质电对;2)C_(70)薄膜厚度约为1μM时光伏效应较大;3)C_(70)在gAAS电极上的光电性能是优良的。The photovoltaic eFFect(PVE ) Forheterojunction Formed by C_(70)on GaAs electrode inthe photoelectrochemical cell was investigated.In Fluences of various redox couples and of thicknessof C_(70)on the photovoltaic eFFect were observed.Theresults showed that:1)I_2/was the best redoxcouple in the photoelectrochemical cell.2)Thephotovoltaic property of C_(70)-GaAs electrode at 1μmFor thickness of C_(70) was best.3 ) The photoelectricproperty of C_(70) on GaAs electrode was excellent.国家自然科学基

    Synthesis of Nitrogen-Doped Fullercnes, Carbon Nanotubes and Nanocrystals in Nitrogen Atmosphere

    No full text
    氮气氛中合成杂氮球烯、碳纳米管及纳米晶体的研究詹梦熊,余荣清,王育煌,杨士姚,程大典,刘朝阳,郑兰荪(厦门大学化学系,厦门,361005)关键词杂氮球烯,碳纳米管,纳米晶体,氮气氛自球烯及碳纳米管常规制备方法问世以来[1,2],制备方法的改进一直成为...Nitrogen-doped Fullerenes,carbon nanotubes and nanocrystals have been synthesized simultaneously For the First time through the arc-discharge of graphite electrodes in a pure nitrogen atmosphere.They were prepared in a reaction chamber Filled with pure nitrogen gas at the pressures of 10664 53320 Pa.A potential of 20 30 V and a current of 100 140 A ac were applied between two pure graphite rods in the chamber.Nitrogen-doped Fullerenes were discovered in soot and characterized by laser desorption mass spectrometry and X-ray photoelectron spectroscopy.Both and C59N-can be observed on laser desorption mass spectrometry.In addition, a series of nitrogen-substituted carbon cluster anions appear on low-mass section of the mass spectrum.The XPS result also conFirms the existence of nitrogen-doped Fullerenes.Spectral peaks of C(1s)and N(1s) with binding energies of 288.1 eV and 402.8 eV can be distinguished.The latter has a single sharp Feature, diFFering signiFicantly From N2 adsorbed on a C60 Film,which produces a spectral peak near 400.2eV.Carbon nanotubes were observed in deposit.The deposit Formed in a nitrogen atmosphere is much richer in carbon nanotubes than that Formed in a heliumor argon atmosphere.The carbon nanotubes were investigated by transmission electron microscopy(TEM ).Some unusual structural patterns of carbon nanotubes have been observed From the TEM images.In addition, nanocrystals were observed by TEM aFter the deposit was treated in the corrosive solution.The nanocrystals may be C3N4.国家自然科学基金;优秀中青年人才专项基
    corecore