首页> 外文期刊>Journal of nano research >Electrochemical Synthesis of Conducting Polypyrrole Film on Tin Substrate: Structural, Chemical and Field Emission Investigations
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Electrochemical Synthesis of Conducting Polypyrrole Film on Tin Substrate: Structural, Chemical and Field Emission Investigations

机译:锡基底上导电聚吡咯膜的电化学合成:结构,化学和场发射研究

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摘要

Electrochemical synthesis of Polypyrrole (PPy) thin films on Sn substrates has been carried out under cyclic voltammetry (CV) mode. The structural, morphological and chemical properties of the as-synthesized PPy films were investigated using various characterization techniques like SEM, UV-Visible and FTIR. Furthermore, field emission (FE) behaviour of the PPy thin film emitter were carried out at base pressure of similar to 1x10(-8) mbar and found to be interesting. The threshold field, required to draw emission current density of 1 mu A/cm(2) , is observed to be 0.90 V/mu m and very high emission current density of 12.87 mA/cm(2) has been drawn at applied field of similar to 2.8 V/mu m. The emission current stability investigated at preset values of 1, 10 and 100 mu A/cm(2) is observed to be fairly good over duration of more than three hours. The simplicity of the synthesis route coupled with the capability to deliver very high emission current density at relatively lower applied field make the PPy thin field emitter as a potential candidate for practical applications in field emission based devices
机译:Sn衬底上的聚吡咯(PPy)薄膜的电化学合成已在循环伏安法(CV)模式下进行。使用各种表征技术(如SEM,UV-Visible和FTIR)研究了合成后的PPy膜的结构,形态和化学性质。此外,PPy薄膜发射器的场发射(FE)行为是在类似于1x10(-8)mbar的基本压力下进行的,发现很有趣。观察到绘制1μA/ cm(2)的发射电流密度所需的阈值场为0.90V /μm,并且在施加电场下绘制了12.87mA / cm(2)的非常高的发射电流密度。类似于2.8 V /μm。在超过三个小时的持续时间内,观察到以1、10和100μA / cm(2)的预设值研究的发射电流稳定性相当好。合成路线的简单性以及在相对较低的应用场中提供非常高的发射电流密度的能力使得PPy薄场发射器成为基于场发射的器件实际应用的潜在候选者

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