Enhanced thermal and pyroelectric properties in 0–3 TGS:PVDF composites doped with graphene for infrared application

• Main Authors: Xiaodong Feng, Minqiang Wang, Le Li, Zhi Yang, Minghui Cao, Z.-Y. Cheng
• Format: Article
• Language: English
• Published: World Scientific Publishing 2017-02-01
• Series: Journal of Advanced Dielectrics
• Subjects: Composites; polling; thermal; pyroelectric; graphene doping
• Online Access: http://www.worldscientific.com/doi/pdf/10.1142/S2010135X17500060

Pyroelectric composites of triglycine sulfate (TGS)-polyvinylidene difluoride (PVDF) doped with graphene are studied. It is found that the graphene can effectively improve the polling efficiency and thermal property of the composites so that the infrared detective performance can be significantly improved. For example, by adding about 0.83 wt.% of graphene, the infrared detective property can be improved by more than 30%. It is also found that the size of the graphene plays a critical role on the property improvement. For example, the small-sized graphene prepared by ultrasonic exfoliation (UE) method is more effective than the big-sized graphene prepared by electrochemical exfoliation (EE) method.