Piezoelectric poly(vinylidene fluoride trifluoroethylene) thin film-based power generators using paper substrates for wearable device applications

Autor:	Mackenzie Sheldon, Jiyeon Kwak, Sung Sik Won, Bong-Suk Chang, Ill Won Kim, Angus I. Kingon, Nicholas Mostovych, Seung-Hyun Kim, Chang Won Ahn
Rok vydání:	2015
Předmět:	Electricity generation Materials science Physics and Astronomy (miscellaneous) business.industry Annealing (metallurgy) Optoelectronics Wearable computer Thin film business Microstructure Piezoelectricity Wearable technology Voltage
Zdroj:	Applied Physics Letters. 107:202901
ISSN:	1077-3118 0003-6951
Popis:	Solution-derived poly(vinylidene fluoride trifluoroethylene) (P(VDF-TrFE)) piezoelectric thin films on cellulose paper substrates were prepared as flexible power generators for wearable device applications. Optimization of appropriate annealing and cooling sequences of the co-polymer films resulted in the formation of dense and uniform microstructures exhibiting a well-developed β-phase. A maximum open-circuit voltage of 1.5 V was generated from the periodic bending and releasing of the paper power generator at approximately 1 Hz. To demonstrate the wearable applications, P(VDF-TrFE) piezoelectric film-based paper power generators were directly attached on the back of a human hand, and they generated a maximum output open-circuit voltage of 0.4 V at low bending frequencies of 0.25 Hz. Good open-circuit voltage performance at low frequencies makes P(VDF-TrFE) piezoelectric thin films on paper substrates a strong candidate for future self-powered wearable devices.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a923f549882f4ce63a6b09ae90d61068 https://doi.org/10.1063/1.4935557 Zobrazit plný text záznamu