Synthesis of Silver Nanowires with Reduced Diameters Using Benzoin-Derived Radicals to Make Transparent Conductors with High Transparency and Low Haze,Nano Letters

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Synthesis of Silver Nanowires with Reduced Diameters Using Benzoin-Derived Radicals to Make Transparent Conductors with High Transparency and Low Haze
Nano Letters ( IF 9.6 ) Pub Date : 2018-07-16 00:00:00 , DOI: 10.1021/acs.nanolett.8b02479
Zhiqiang Niu _{1,

2} , Fan Cui _{1,

2} , Elisabeth Kuttner ₃ , Chenlu Xie ₁ , Hong Chen ₁ , Yuchun Sun ₁ , Ahmad Dehestani ₂ , Kerstin Schierle-Arndt ₂ , Peidong Yang _{1,

2,

4,

5,

6}

Affiliation

Reducing the diameter of silver nanowires has been proven to be an effective way to improve their optoelectronic performance by lessening light attenuation. The state-of-the-art silver nanowires are typically around 20 nm in diameter. Herein we report a modified polyol synthesis of silver nanowires with average diameters as thin as 13 nm and aspect ratios up to 3000. The success of this synthesis is based on the employment of benzoin-derived radicals in the polyol approach and does not require high-pressure conditions. The strong reducing power of radicals allows the reduction of silver precursors to occur at relatively low temperatures, wherein the lateral growth of silver nanowires is restrained because of efficient surface passivation. The optoelectronic performance of as-prepared 13 nm silver nanowires presents a sheet resistance of 28 Ω sq^–1 at a transmittance of 95% with a haze factor of ∼1.2%, comparable to that of commercial indium tin oxide (ITO).

中文翻译：

使用苯偶姻衍生的自由基合成直径减小的银纳米线，以制备具有高透明度和低雾度的透明导体

事实证明，减小银纳米线的直径是通过减少光衰减来改善其光电性能的有效方法。最先进的银纳米线的直径通常约为20 nm。本文中，我们报道了一种改性的多元醇合成的银纳米线，其平均直径可薄至13 nm，长宽比高达3000。这种合成的成功是基于在多元醇方法中采用了安息香衍生的基团，并且不需要高压力条件。自由基的强还原能力使银前体的还原在相对较低的温度下发生，其中银纳米线的横向生长由于有效的表面钝化而受到限制。制备的13 nm银纳米线的光电性能表现为28Ωsq的薄层电阻^–1，透射率为95％，雾度为〜1.2％，可与商用氧化铟锡（ITO）相比。

更新日期：2018-07-16

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