title: Fluoroalkylsilane-Modified Textile-Based Personal Energy Management Device for Multifunctional Wearable Applications.
abstract: The rapid development of wearable electronics in recent years has brought increasing energy consumption, making it an urgent need to focus on personal energy harvesting, storage and management. Herein, a textile-based personal energy management device with multilayer-coating structure was fabricated by encapsulating commercial nylon cloth coated with silver nanowires into polydimethylsiloxane using continuous and facile dip-coating method. This multilayer-coating structure can not only harvest mechanical energy from human body motion to power wearable electronics but also save energy by keeping people warm without losing heat to surroundings and wasting energy to heat empty space and inanimate objects. Fluoroalkylsilanes (FAS) were grafted onto the surface of the film through one single dip-coating process to improve its energy harvesting performance, which has hardly adverse effect to heat insulation and Joule heating property. In the presence of FAS modification, the prepared film harvested mechanical energy to reach a maximum output power density of 2.8 W/m(2), charged commercial capacitors and lighted LEDs, showing its potential in powering wearable electronics. Furthermore, the film provided 8% more thermal insulation than normal cloth at 37 °C and efficiently heated to 40 °C within 4 min when applied the voltage of only 1.5 V due to Joule heating effect. The high flexibility and stability of the film ensures its wide and promising application in the wearable field.
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China.
authors.forename: Yinben
authors.initials: Y
authors.lastname: Guo
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China.
authors.forename: Kerui
authors.initials: K
authors.lastname: Li
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China.
authors.forename: Chengyi
authors.initials: C
authors.lastname: Hou
authors.affiliation: Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University , Shanghai 201620, People's Republic of China.
authors.forename: Yaogang
authors.initials: Y
authors.lastname: Li
authors.affiliation: Engineering Research Center of Advanced Glasses Manufacturing Technology, Ministry of Education, Donghua University , Shanghai 201620, People's Republic of China.
authors.forename: Qinghong
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University , Shanghai 201620, People's Republic of China.
authors.forename: Hongzhi
authors.initials: H
authors.lastname: Wang
mesh_terms: D011211:Electric Power Supplies; D004581:Electronics; D006801:Humans; D053770:Nanowires / Q000737:chemistry*; D009757:Nylons / Q000737:chemistry; D012821:Silanes / Q000138:chemical synthesis / Q000737:chemistry*; D012834:Silver / Q000737:chemistry; D013784:Textiles
chemical_list: D009757:Nylons; D012821:Silanes; D012834:Silver
keywords: FAS; heat insulation; personal energy management; triboelectric nanogenetator; wearable heater