fig3

Figure 3. Overview of substrate materials of pressure and temperature sensors towards e-skin. Figure “Polymers” reproduced with permission^[30]. Copyright 2015, Elsevier. B.V. PET, PEN, and PI represent polyethylene glycol terephthalate, polyethylene naphthalate two formic acid glycol ester, and polyimide, respectively. Figure “Chain modification” reproduced with permission^[32]. Copyright 2014, American Chemical Society. Figure “Dissipative networks” reproduced with permission^[36]. Copyright 2017, The Royal Society of Chemistry. The upper of Figure “Silicone rubbers” reproduced with permission^[33]. Copyright 2018, American Chemical Society. The lower of Figure “Silicone rubbers” reproduced with permission^[34]. Copyright 2014, John Wiley & Sons, Inc. Figure “Hydrogel” reproduced with permission^[37]. Copyright 2012, Elsevier B.V. Figure “Aerogel” reproduced with permission^[38]. Copyright 2012, Springer Nature. Figure “Other materials” from top to bottom reproduced with permission^[39-43]. Copyright 2017, American Chemical Society^[39]. Copyright 2017, John Wiley & Sons, Inc^[40]. Copyright 2018, American Chemical Society^[41]. Copyright 2011, John Wiley & Sons, Inc^[42]. Copyright 2019, John Wiley & Sons, Inc^[43].