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Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials最新文献

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Mechano‐chemical functionalization of carbon nanotubes 碳纳米管的机械化学功能化
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514079
K. Niesz, Z. Kónya, I. Vesselényi, A. Fonseca, J. Nagy, I. Kiricsi
{"title":"Mechano‐chemical functionalization of carbon nanotubes","authors":"K. Niesz, Z. Kónya, I. Vesselényi, A. Fonseca, J. Nagy, I. Kiricsi","doi":"10.1063/1.1514079","DOIUrl":"https://doi.org/10.1063/1.1514079","url":null,"abstract":"Short, functionalized multiwall carbon nanotubes were prepared by a simple mechano‐chemical way. The fundamental idea of our method is breaking of the nanotubes under reactive gas atmosphere such as CO, COCl2, Cl2, NH3, CH3SH in a ball mill. During this ball milling procedure the tube length decreased to 200–300 nm, while the specific surface area increased by about 20% and the inner pore of the nanotubes became accessible.","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123966732","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
Electrical and Thermal Properties of C60‐filled Single Wall Carbon Nanotubes C60填充单壁碳纳米管的电学和热学性能
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514089
J. Vavro, M. Llaguno, B. Satishkumar, R. Haggenmueller, K. Winey, D. Luzzi, J. Fischer, G. Sumanasekera, P. Eklund
{"title":"Electrical and Thermal Properties of C60‐filled Single Wall Carbon Nanotubes","authors":"J. Vavro, M. Llaguno, B. Satishkumar, R. Haggenmueller, K. Winey, D. Luzzi, J. Fischer, G. Sumanasekera, P. Eklund","doi":"10.1063/1.1514089","DOIUrl":"https://doi.org/10.1063/1.1514089","url":null,"abstract":"We measured temperature‐dependent resistivity ρ, thermal conductivity κ and thermopower S of C60@SWNT (“peapods”). C60 filling reduces ρ much less than alkali metal doping at all T, indicating weak charge transfer. κ is enhanced by filling, the enhancement showing interesting structure vs. T for which we give a tentative explanation. S is reduced at all T by C60 filling, which we explain by a) C60@SWNT blocking some of the oxygen doping sites, and b) weak disorder on the 1‐D chain which reduces the mean free path of tube phonons and thus the phonon drag contribution.","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128920395","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
Purification and Characterization of Cerium Endohedral fullerenes 铈内嵌富勒烯的纯化与表征
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514068
M. Kanai, T. Dennis, H. Shinohara
{"title":"Purification and Characterization of Cerium Endohedral fullerenes","authors":"M. Kanai, T. Dennis, H. Shinohara","doi":"10.1063/1.1514068","DOIUrl":"https://doi.org/10.1063/1.1514068","url":null,"abstract":"Cerium is the most common lanthanide element with its valence state +3 or +4. Cerium endohedral fullerenes, including Ce@C82 and Ce2@C80, were purified and characterized by MALDI‐TOF mass spectrometry, UV‐Vis and 13C NMR spectroscopy.","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132480054","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
Electron Transport in Single‐Wall Carbon Nanotube Mats 单壁碳纳米管垫中的电子传递
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514116
M. Shiraishi, M. Ata
{"title":"Electron Transport in Single‐Wall Carbon Nanotube Mats","authors":"M. Shiraishi, M. Ata","doi":"10.1063/1.1514116","DOIUrl":"https://doi.org/10.1063/1.1514116","url":null,"abstract":"Electron transport mechanisms in single‐walled carbon nanotube (SWNT) mats were investigated by measuring the temperature dependence of the resistance. The behavior of the resistance changed as the thickness of samples was changed. By comparing previous various models, it was clarified that the contact tunneling model is the most plausible to explain this phenomena.","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"59 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132984337","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
Interaction of O2 and C60 with Single‐Wall Carbon Nanotube Bundles from Thermal Desorption Spectroscopy 热解吸光谱研究O2和C60与单壁碳纳米管束的相互作用
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514135
H. Ulbricht, G. Moos, T. Hertel
{"title":"Interaction of O2 and C60 with Single‐Wall Carbon Nanotube Bundles from Thermal Desorption Spectroscopy","authors":"H. Ulbricht, G. Moos, T. Hertel","doi":"10.1063/1.1514135","DOIUrl":"https://doi.org/10.1063/1.1514135","url":null,"abstract":"We have studied the kinetics of oxygen desorption from single‐wall carbon nanotube (SWNT) bundles and highly oriented pyrolytic graphite (HOPG) using thermal desorption spectroscopy (TDS). The binding energies for adsorption on SWNT bundles and HOPG at low coverages are 18.5 kJ/mol and 12.0 kJ/mol, respectively. Molecular mechanics calculations using van der Waals pair‐potentials show that the higher binding energy found for adsorption on SWNT bundles can be attributed to van der Waals interactions and is due to higher coordinated sites available for adsorption on the tube bundles. We find no evidence for a stronger bound, chemisorbed oxygen species or for dissociative adsorption. We also present preliminary results on the kinetics of desorption of C60 from nanotube bundles and from HOPG.","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132274235","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
Electronic structure of intercalated single‐wall carbon nanotubes 插层单壁碳纳米管的电子结构
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514120
Xianjie Liu, T. Pichler, M. Knupfer, M. Golden, J. Fink, H. Kataura
{"title":"Electronic structure of intercalated single‐wall carbon nanotubes","authors":"Xianjie Liu, T. Pichler, M. Knupfer, M. Golden, J. Fink, H. Kataura","doi":"10.1063/1.1514120","DOIUrl":"https://doi.org/10.1063/1.1514120","url":null,"abstract":"We present recent studies of the electronic structure and optical properties of intercalated single‐wall carbon nanotubes using high resolution electron energy‐loss spectroscopy (EELS) in transmission and optical absorption spectroscopy. Results on nanotubes intercalated with potassium and iron (III) chloride are presented. Changes in the nanotube electronic structure were monitored in‐situ by optical absorption and EELS. The modulation of the filling of van Hove singularities is reflected by the intensity variations of the optical excitations. The intensity of the interband transitions is dramatically affected, demonstrating the possibility of tuning the Fermi level to specific bands upon doping.","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131340501","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
Organic Functionalized Carbon Nanotubes 有机功能化碳纳米管
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514077
V. Georgakilas, N. Tagmatarchis, D. Voulgaris, M. Prato, Á. Kukovecz, H. Kuzmany, A. Hirsch, F. Zerbetto, M. Melle‐Franco
{"title":"Organic Functionalized Carbon Nanotubes","authors":"V. Georgakilas, N. Tagmatarchis, D. Voulgaris, M. Prato, Á. Kukovecz, H. Kuzmany, A. Hirsch, F. Zerbetto, M. Melle‐Franco","doi":"10.1063/1.1514077","DOIUrl":"https://doi.org/10.1063/1.1514077","url":null,"abstract":"A well documented methodology based on the 1,3 dipolar cycloaddition of azomethine ylides for solubilizing carbon nanotubes is reported. The products, organic functionalized carbon nanotubes, were characterized by analytical techniques as well as transmission electron microscopy.","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122977391","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
Electronics from Organic and Molecular Systems: A Roundtable Discussion 来自有机和分子系统的电子学:圆桌讨论
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514170
J. Fischer
{"title":"Electronics from Organic and Molecular Systems: A Roundtable Discussion","authors":"J. Fischer","doi":"10.1063/1.1514170","DOIUrl":"https://doi.org/10.1063/1.1514170","url":null,"abstract":"","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122677470","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
Self‐assembly and Optical Limiting Properties of Au Nanoparticles 金纳米粒子的自组装和光限制特性
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514165
Shengxiong Xiao, Yuliang Li, Yinglin Song, Hongjuan Fang, Hongmei Li, Shengqiang Xiao, Huibiao Liu, Daoben Zhu
{"title":"Self‐assembly and Optical Limiting Properties of Au Nanoparticles","authors":"Shengxiong Xiao, Yuliang Li, Yinglin Song, Hongjuan Fang, Hongmei Li, Shengqiang Xiao, Huibiao Liu, Daoben Zhu","doi":"10.1063/1.1514165","DOIUrl":"https://doi.org/10.1063/1.1514165","url":null,"abstract":"The cycloaddition reaction of azide of oligopyridine with [60]fullerene was used to synthesize two novel [60]fullerene derivatives containing bi/tri‐pyridyl group, which were employed to self‐assemble on the surface of gold nanoparticles. Optical limiting of the gold nanoparticles in chloroform were determined","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127660160","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
Jahn‐Teller Effect in Ferromagnetic TDAE‐C60 铁磁TDAE - C60中的Jahn - Teller效应
Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI: 10.1063/1.1514074
R. Blinc, P. Jeglič, T. Apih, J. Seliger, D. Arčon, A. Omerzu
{"title":"Jahn‐Teller Effect in Ferromagnetic TDAE‐C60","authors":"R. Blinc, P. Jeglič, T. Apih, J. Seliger, D. Arčon, A. Omerzu","doi":"10.1063/1.1514074","DOIUrl":"https://doi.org/10.1063/1.1514074","url":null,"abstract":"The frequency swept wide line 13C NMR spectra of well annealed 13C enriched TDAE‐C60 demonstrate below 10 K a sudden increase in the inhomogeneous linewidth indicating a Jahn‐Teller distortion. The distortion is dynamic above 10 K and becomes static on the 13C NMR time scale below this temperature. From the 13C NMR lineshape a belt‐like unpaired electron spin density distribution on the C60 ion can be extracted.","PeriodicalId":196292,"journal":{"name":"Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133720533","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
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