Lopez-Diaz D, Merino C, Velázquez M M
Departamento de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca, Salamanca 37008, Spain.
GRAnPH Nanotech, Grupo Antolín Ingeniería SA, Burgos 09007, Spain.
Materials (Basel). 2015 Nov 11;8(11):7622-7633. doi: 10.3390/ma8115405.
Silver nanowires 90 nm in diameter and 9 µm in length have been synthesized using different capping agents: polyvinyl pyrrolidone (PVP) and alkyl thiol of different chain lengths. The nanowire structure is not influenced by the displacement of PVP by alkyl thiols, although alkyl thiols modify the lateral aggregation of nanowires. We examined the effect of the capping agent and the deposition method on the optical and electrical properties of films prepared by Spray and the Langmuir-Schaefer methodologies. Our results revealed that nanowires capped with PVP and C8-thiol present the best optoelectronic properties. By using different deposition techniques and by modifying the nanowire surface density, we can modulate the optoelectronic properties of films. This strategy allows obtaining films with the optoelectronic properties required to manufacture touch screens and electromagnetic shielding.
聚乙烯吡咯烷酮（PVP）和不同链长的烷基硫醇，合成了直径为90纳米、长度为9微米的银纳米线。尽管烷基硫醇会改变纳米线的横向聚集，但纳米线结构不受PVP被烷基硫醇取代的影响。我们研究了封端剂和沉积方法对通过喷雾法和朗缪尔-谢弗法制备的薄膜的光学和电学性质的影响。我们的结果表明，用PVP和C8-硫醇封端的纳米线具有最佳的光电性能。通过使用不同的沉积技术并改变纳米线的表面密度，我们可以调节薄膜的光电性能。这种策略能够获得具有制造触摸屏和电磁屏蔽所需光电性能的薄膜。
