Poly(lactic acid)/poly(3-hexylthiophene) composite nanofiber fabrication for electronic applications

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• 作者：William Serrano ; Anamaris Melé ; ndez ; Idalia Ramos and Nicholas J Pinto
• 关键词：fibers ; diode ; sensor ; electrospinning ; biopolymer
• 刊名：Polymer International
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：65
• 期：5
• 页码：503-507
• 全文大小：968K
• ISSN：1097-0126

文摘

Fibers of the biopolymer poly(lactic acid) (PLA) and the p-type semiconducting polymer poly(3-hexylthiophene) (P3HT) were fabricated using the electrospinning technique at low PLA concentration (5 wt%) in CHCl₃. The fibers were several millimeters long and had diameters in the range 100 nm–4 µm. Nanofibers containing 63%/37% of PLA/P3HT were electroactive, and therefore were used to construct p–n diodes whose ideality parameter was 2.4 and rectification (on/off) ratio was 400 at ±1 V. These diodes were also able to sense UV radiation and remain operable with an increase in the on/off ratio and a lowering of the turn-on voltage. By fabricating reusable and low-cost multifunctional diodes from PLA/P3HT, the applications of PLA as a biocompatible and biodegradable polyester are expanded to include electronic device fabrication with low environmental impact.