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首頁> 美國衛(wèi)生研究院文獻(xiàn)>Nanoscale Research Letters >Preparing of Highly Conductive Patterns on Flexible Substrates by Screen Printing of Silver Nanoparticles with Different Size Distribution
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Preparing of Highly Conductive Patterns on Flexible Substrates by Screen Printing of Silver Nanoparticles with Different Size Distribution

機(jī)譯：通過絲網(wǎng)印刷不同尺寸分布的銀納米粒子在柔性基板上制備高導(dǎo)電性圖形

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A facile one-step polyol method is employed to synthesize the Ag nanoparticles (NPs) in large scale. The Ag NPs with different average diameter (from 52 to 120 nm) and particle size distribution are prepared by changing the mass ratio of AgNO3 and PVP. Furthermore, the as-obtained Ag NPs are prepared as conductive inks, which could be screen printed on various flexible substrates and formed as conductive patterns after sintering treatment. During the reaction process, PVP is used as the capping reagent for preventing the agglomeration of Ag NPs, and the influence of the mass ratio of AgNO3 and PVP to the size distribution of Ag NPs is investigated. The results of electronic properties reveal that the conductivity of printed patterns is highly dependent on the size distribution of as-obtained Ag NPs. Among all the samples, the optimal conductivity is obtained when the mass ratio of AgNO3 and PVP is 1:0.4. Subsequently, the sintering time and temperature are further investigated for obtaining the best conductivity; the optimal electrical resistivity value of 3.83 μΩ · cm is achieved at 160 °C for 75 min, which is close to the resistivity value of the bulk silver (1.58 μΩ · cm). Significantly, there are many potential advantages in printed electronics applications because of the as-synthesized Ag NPs with a low sintering temperature and low electrical resistivity.Electronic supplementary materialThe online version of this article (doi:10.1186/s11671-016-1640-1) contains supplementary material, which is available to authorized users.
機(jī)譯：一種簡便的一步多元醇方法可用于大規(guī)模合成Ag納米顆粒（NPs）。通過改變AgNO3和PVP的質(zhì)量比來制備具有不同平均直徑（從52到120nm）和粒徑分布的AgNPs。此外，將所獲得的Ag NPs制備為導(dǎo)電油墨，可以將其絲網(wǎng)印刷在各種柔性基板上，并且在燒結(jié)處理之后形成為導(dǎo)電圖案。在反應(yīng)過程中，以PVP為封端劑，防止Ag NPs團(tuán)聚，研究了AgNO3和PVP的質(zhì)量比對(duì)Ag NPs尺寸分布的影響。電子性質(zhì)的結(jié)果表明，印刷圖案的電導(dǎo)率高度取決于所獲得的Ag NP的尺寸分布。在所有樣品中，當(dāng)AgNO3與PVP的質(zhì)量比為1：0.4時(shí)，可獲得最佳電導(dǎo)率。隨后，進(jìn)一步研究燒結(jié)時(shí)間和溫度以獲得最佳導(dǎo)電率。在160°C下75分鐘的最佳電阻率值為3.83μΩ·cm，接近于散裝銀的電阻率值（1.58μΩ·cm）。值得注意的是，由于合成后的Ag NP具有較低的燒結(jié)溫度和低電阻率，因此在印刷電子應(yīng)用中具有許多潛在優(yōu)勢。電子補(bǔ)充材料本文的在線版本（doi：10.1186 / s11671-016-1640-1）包含補(bǔ)充材料，授權(quán)用戶可以使用。

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