Supramolecule-based topological network enabled highly stretchable, conducting, and photo-patternable PEDOT:PSS
View Patent ↗A conducting composition includes a topological polymer (e.g., a polyrotaxane polymer) and poly(3,4-ethylene-dioxy thiophene):polystyrene sulfonate (PEDOT:PSS). Devices may include a conducting layer including the conducting compositions, e.g., a device comprising a conducting layer, wherein the conducting layer includes a polyrotaxane polymer and a PEDOT:PSS array. The devices are useful in bioelectronics, including high-resolution electrophysiological monitoring of deformable tissues and localized neuromodulation for high-precision control of individual muscle activities.
1 . A conducting composition comprising a topological polymer and a PEDOT:PSS, wherein:
the topological polymer comprises a polyrotaxane polymer comprising cyclodextrin rings; and
the conducting composition has a stretchability greater than 10% crack onset strain and a conductivity of more than 100 S/cm.
2 . The conducting composition of claim 1 , wherein the polyrotaxane polymer further comprises a PEG backbone having a molecular weight of 5 kDa to 15 kDa.
3 . The conducting composition of claim 1 , wherein the cyclodextrin rings comprise cyclodextrin rings substituted by a PEG side chain, cyclodextrin rings not substituted by a PEG side chain, or both cyclodextrin rings substituted by a PEG side chain and cyclodextrin rings not substituted by a PEG side chain.
4 . The conducting composition of claim 3 , wherein the PEG side chain is a PEG diacrylate or PEG di (meth) acrylate.
5 . The conducting composition of claim 1 , wherein the topological polymer is crosslinked, non-ionic, and transparent.
6 . The conducting composition of claim 1 , wherein the conducting composition exhibits at least 50% transmittance.
7 . The conducting composition of claim 1 , wherein the composition is in the form of a film.
8 . A device comprising a conducting layer comprising the conducting composition of claim 1 .
9 . The device of claim 8 , further comprising a substrate layer comprising an elastomer, wherein the elastomer is a fluoropolymer.
10 . The device of claim 8 further comprising a backing layer, comprising an elastomer.
11 . The device of claim 8 , wherein the PEDOT: PSS in the conducting layer is patterned as conductive strips within the conducting layer.
12 . The device of claim 8 , wherein the device is a transparent conducting polymer electrode, stretchable solar cell, stretchable photodiode, stretchable light emitting diode, an electrical stimulation electrode, or an electrophysiology electrode.
13 . The conducting composition of claim 1 , wherein the conducting composition has a stretchability greater than 50% crack onset strain and a conductivity of more than 1000 S/cm.
14 . The conducting composition of claim 1 , wherein the conducting composition is photopatterned.
15 . A device comprising a conducting layer comprising a topological polymer and a photo-patterned PEDOT: PSS array, wherein the conducting layer has a stretchability greater than 10% crack onset strain and a conductivity of more than 1 S/cm.
16 . The device of claim 15 , further comprising a substrate layer comprising poly (vinylidene fluoride)-co-hexafluoropropylene.
17 . The device of claim 15 further comprising a backing layer comprising a polydimethylsiloxane.
18 . The device of claim 15 , wherein the conductivity is more than 100 S/cm.
19 . The device of claim 15 further comprising a substrate layer comprising an elastomer, wherein the elastomer is a fluoropolymer.
20 . The device of claim 15 , wherein the PEDOT: PSS in the conducting layer is patterned as conductive strips within the conducting layer.