writer：Lei Zhang,Long Jin,Binbin Zhang,Weili Deng,Hong Pan, Junfeng Tang,Minhao Zhu,Weiqing Yang
keywords：Triboelectric nanogenerator, Porous micro-nickel foam, Vibration energy, Footfall; Self-powered
source：期刊
Issue time：2015年

Tostrengthentheeffectivecontactareaoftwomaterialswiththeoppositetriboelectric

polarities wasprovedtobeaneffectivesolutiontoenhancetheelectronicoutputof

triboelectric nanogenerator(TENG).Presently,thatmainlyfocusedonthesurfacemodification

of negativematerialsbymicro/nanostructure,however,rarelyforthepositivematerials.

Here, wepresentedasimple,low-costandmultifunctionalTENGbasedontheporousmicro-

nickel foam(PMNF)forharvestingthenaturalvibrationenergy.Withthesurfacemodification of

PMNF withthepositivepolarity,thenewlydesignedTENGproducedanopen-circuitvoltageup

to 187.8Vandashort-circuitcurrentof71.9 μΑ with thepeakpowerdensityof3.7W/m2 at

the resonancefrequencyof13.9Hzbyharvestingvibrationenergy.ThisTENGcould

simultaneously andcontinuouslylightup100commerciallight-emittingdiodebulbs.Addition-

ally,bythefootfallsforceofabout500N,thecorrespondingopen-circuitvoltageandshort-

circuit currentwereashighas403Vand336 μA, respectively.ThenewlydesignedTENGcanbe

used fortheself-powdered floor byfootfallsandalsoforpoweringsomewirelesselectronicsby

harvesting thevibrationenergyfromhighways,railways,andtunnelsinremotemountainareas.