| Study on the Electrical Conductivity of Au Nanoparticle／Chloroform and Toluene Suspensions |
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| 引用本文： | 方芳,张亚非.Study on the Electrical Conductivity of Au Nanoparticle／Chloroform and Toluene Suspensions[J].上海交通大学学报(英文版),2005,10(1):95-98. |
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| 作者姓名： | 方芳 张亚非 |
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| 作者单位： | Bio-X DNA Computer Consortium，Shanghai Jiaotong Univ.，Shanghai 200030，China，Key Lab. for Thin Film and Microfabrication Technology of Ministry of Education，Inst. of Micro/Nanometer Science and Technology，Shanghai Jiaotong Univ.，Shanghai 200030，Bio-X DNA Computer Consortium，Shanghai Jiaotong Univ.，Shanghai 200030，China，Key Lab. for Thin Film and Microfabrication Technology of Ministry of Education，Inst. of Micro/Nanometer Science and Technology，Shanghai Jiaotong Univ.，Shanghai 200030 |
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| 基金项目： | Youth Research F oundation fromShanghai Jiaotong U niv. and the Special Foundation for Cross-field Innovation Research Group from Shanghai Science Council |
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| 摘 要： | Au nanoparticles capped by hexadecanethiol and dodecanethiol were chemically synthesized. The characteristics of electrical conductivity for the capped nanoparticles dissolved in chloroform and toluene solvents were investigated. The electrical conductivity of the samples is conspicuously Au nanoparticle concentration dependent.The results show that a rapid conductivity increases when the nanoparticle concentration increases from low value to a moderate value of 5.47 g/L and 11.22 g/L, which is capped by hexadecanethiol and dodecanethiol in chloroform solvent, and 2. 77 g/L and 7. 88 g/L in toluene solvent. The room-temperature dc conductivity σdc of Au na noparticle capped by hexadecanethiol is smaller than that capped by dodecanethiol in the whole range of Au nanoparticle concentrations. The conductivity of Au nanoparticle suspensions increases almost linearly in the temperature range in above two solvents.
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| 关 键 词： | 电导率 金纳米粒子 隧洞 化学合成 |
Study on the Electrical Conductivity of Au Nanoparticle/ Chloroform and Toluene Suspensions |
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| FANG Fang,ZHANG Ya-fei.Study on the Electrical Conductivity of Au Nanoparticle/ Chloroform and Toluene Suspensions[J].Journal of Shanghai Jiaotong university,2005,10(1):95-98. |
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| Authors: | FANG Fang ZHANG Ya-fei |
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| Institution: | Bio-X DNA Computer Consortium,Shanghai Jiaotong Univ.,Shanghai 200030,China;Key Lab.for Thin Film and Microfabrication Technology of Ministry of Education,Inst.of Micro/Nanometer Science and Technology,Shanghai Jiaotong Univ.,Shanghai 200030 |
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| Abstract: | Au nanoparticles capped by hexadecanethiol and dodecanethiol were chemically synthesized. The characteristics of electrical conductivity for the capped nanoparticles dissolved in chloroform and toluene solvents were investigated. The electrical conductivity of the samples is conspicuously Au nanoparticle concentration dependent.The results show that a rapid conductivity increases when the nanoparticle concentration increases from low value to a moderate value of 5.47 g/L and 11.22 g/L, which is capped by hexadecanethiol and dodecanethiol in chloroform solvent, and 2.77 g/L and 7.88 g/L in toluene solvent. The room-temperature dc conductivity σdc of Au nanoparticle capped by hexadecanethiol is smaller than that capped by dodecanethiol in the whole range of Au nanoparticle concentrations. The conductivity of Au nanoparticle suspensions increases almost linearly in the temperature range in above two solvents. |
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| Keywords: | electrical conductivity Au nanoparticle tunnel moderate value |
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