Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin, Taiwan.
J Colloid Interface Sci. 2011 Jul 15;359(2):423-7. doi: 10.1016/j.jcis.2011.04.026. Epub 2011 Apr 17.
Transparent conductive films of single-walled carbon nanotubes (SWCNTs) were fabricated by a simple method to significantly enhance anti-scratch and transparency properties by the incorporation of polyethoxysiloxane (PES). The reasons for changes in the mechanical properties and transmittance were investigated through the reflection property and morphology of thin films. With the incorporation of PES, the sheet resistance of the SWCNT thin film remained unchanged after the anti-scratch test. It was found that the transmittance of the thin films suddenly increased when the thickness of the PES layer was ca 100 nm. Although the PES incorporation resulted in a slight increase in the sheet resistance, the experimental results revealed that the sheet resistance of the SWCNT thin films with PES was lower than that of films without PES for the same transmittance due to the increase of the transmittance caused by the PES incorporation. We have demonstrated that the sheet resistance was halved at a transmittance of ∼86% due to PES incorporation. SWCNT thin films with PES showed better electrical properties than those without PES after a bend test.
通过简单的方法制备了单壁碳纳米管 (SWCNT) 的透明导电薄膜，通过掺入聚乙氧基硅氧烷 (PES) 显著提高了抗划伤和透明度性能。通过薄膜的反射特性和形貌研究了机械性能和透光率变化的原因。随着 PES 的掺入，SWCNT 薄膜的方阻在抗划伤测试后保持不变。研究发现，当 PES 层的厚度约为 100nm 时，薄膜的透光率突然增加。尽管 PES 的掺入导致方阻略有增加，但实验结果表明，由于 PES 掺入引起的透光率增加，PES 掺入的 SWCNT 薄膜的方阻低于具有相同透光率的无 PES 薄膜的方阻。我们已经证明，由于 PES 的掺入，透光率约为 86%时，方阻降低了一半。经过弯曲测试后，具有 PES 的 SWCNT 薄膜表现出比没有 PES 的 SWCNT 薄膜更好的电性能。
