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Ultrastretchable, transparent triboelectric nanogenerator as electronic skin for
biomechanical energy harvesting and tactile sensing
#MMPMID28580425
Pu X
; Liu M
; Chen X
; Sun J
; Du C
; Zhang Y
; Zhai J
; Hu W
; Wang ZL
Sci Adv
2017[May]; 3
(5
): e1700015
PMID28580425
show ga
Rapid advancements in stretchable and multifunctional electronics impose the
challenge on corresponding power devices that they should have comparable
stretchability and functionality. We report a soft skin-like triboelectric
nanogenerator (STENG) that enables both biomechanical energy harvesting and
tactile sensing by hybridizing elastomer and ionic hydrogel as the
electrification layer and electrode, respectively. For the first time, ultrahigh
stretchability (uniaxial strain, 1160%) and transparency (average transmittance,
96.2% for visible light) are achieved simultaneously for an energy-harvesting
device. The soft TENG is capable of outputting alternative electricity with an
instantaneous peak power density of 35 mW m(-2) and driving wearable electronics
(for example, an electronic watch) with energy converted from human motions,
whereas the STENG is pressure-sensitive, enabling its application as artificial
electronic skin for touch/pressure perception. Our work provides new
opportunities for multifunctional power sources and potential applications in
soft/wearable electronics.