Ion-modulated nonlinear electronic transport in carbon nanotube bundle/RbAg4I5 thin film composite nanostructures

Ion-modulated nonlinear electronic transport in carbon nanotube bundle/RbAg4I5 thin film composite nanostructures
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碳纳米管束/RbAg4I5薄膜复合纳米结构中离子调制非线性电子传输

DOI:
10.1063/1.4861728
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发表时间:
2014-01
影响因子:
3.2
通讯作者:
Gu Bingfu
Gu Bingfu
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Sun Jia-Lin;Zhang Wei;Wei Jinquan;Gu Bingfu

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我们探索了由超离子导体RbAg 4 I5薄膜和碳纳米管(CNT)束蛛网构成的混合离子电子导体(MIEC)复合纳米结构的离子调制电子输运性质。我们的实验和理论研究表明,离子-电子束缚态(IEBS)的形成导致了CNT的强离子-电子干涉效应和有趣的电子输运,如非线性电流-电压(I-V)特性和电流的温度依赖性。随着温度的升高,混合纳米结构呈现出丰富的相,电流对温度的依赖性不同,这与RbAg 4 I5的结构相变和IEBS的解离转变有关。在这种MIEC复合纳米结构的电导率具有很大的可调谐性的离子调制已被用来设计新的离子-电子复合纳米器件的功能,如场效应晶体管。
We have explored the ion-modulated electronic transport properties of mixed ionic-electronic conductor (MIEC) composite nanostructures made of superionic conductor RbAg4I5 films and carbon nanotube (CNT) bundle spiderwebs. Our experimental and theoretical studies indicate that the formation of ion-electron bound states (IEBSs) leads to strong ion-electron interference effect and interesting electronic transport of CNT, such as nonlinear current-voltage (I–V) characteristics and novel temperature dependence of the current. With increasing temperature, the hybrid nanostructures show rich phases with different dependence of current on temperature, which is related to the structural phase transition of RbAg4I5 and the transition of dissociation of IEBSs. The ion-modulation of the electric conductivity in such MIEC composite nanostructures with great tunability has been used to design new ionic-electronic composite nano-devices with function like field effect transistor.
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