Stretchable, Transparent, and Thermally Stable Triboelectric Nanogenerators Based on Solvent‐Free Ion‐Conducting Elastomer Electrodes

The development of stretchable/soft electronics requires power sources that can match their stretchability. In this study, a highly stretchable, transparent, and environmentally stable triboelectric nanogenerator with ionic conductor electrodes (iTENG) is reported. The ion‐conducting elastomer (ICE)...

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Bibliographic Details
Published in:Advanced functional materials 2020-04, Vol.30 (15), p.n/a
Main Authors: Zhang, Panpan, Chen, Yanghui, Guo, Zi Hao, Guo, Wenbin, Pu, Xiong, Wang, Zhong Lin
Format: Article
Language:English
Subjects:
Biomechanics
Conduction
Conductors
Dehydration
Elastomers
Electric conductors
Electrification
Electrodes
Electronics
Hydrogels
ion‐conducting elastomers
Materials science
Nanogenerators
Performance degradation
Power sources
pressure sensor
Pressure sensors
Solvents
Stretchability
stretchable
Thermal stability
transparent
triboelectric nanogenerators
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Summary:The development of stretchable/soft electronics requires power sources that can match their stretchability. In this study, a highly stretchable, transparent, and environmentally stable triboelectric nanogenerator with ionic conductor electrodes (iTENG) is reported. The ion‐conducting elastomer (ICE) electrode, together with a dielectric elastomer electrification layer, allows the ICE‐iTENG to achieve a stretchability of 1036% and transmittance of 91.5%. Most importantly, the ICE is liquid solvent‐free and thermally stable up to 335 °C, avoiding the dehydration‐induced performance degradation of commonly used hydrogels. The ICE‐iTENG shows no decrease in electrical output even after storing at 100 °C for 15 h. Biomechanical motion energies are demonstrated to be harvested by the ICE‐iTENG for powering wearable electronics intermittently without extra power sources. An ICE‐iTENG‐based pressure sensor is also developed with sensitivity up to 2.87 kPa−1. The stretchable ICE‐iTENG overcomes the strain‐induced performance degradation using percolated electrical conductors and liquid evaporation‐induced degradation using ion‐conducting hydrogels/ionogels, suggesting great promising applications in soft/stretchable electronics under a relatively wider temperature range. Stretchable, transparent, and thermally stable triboelectric nanogenerators are reported based on solvent‐free ion‐conducting elastomer electrodes, achieving excellent environmental stability and overcoming the dehydration issue of commonly used hydrogel electrodes
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201909252