Fig. 9.

Stretchable CNT TFTs enabled by wrinkled Al₂O₃ gate dielectrics. a Deposition and transfer of Al₂O₃, which is randomly wrinkled during the transfer process. The SEM image shows the surface morphology of the wrinkled Al₂O₃. b, c Schematics, optical micrographs, and transfer characteristics of the fully fabricated CNT TFTs when stretched along the channel length direction up to a strain of 16 % (b) or along the channel width direction up to a strain of 20 % (c). Reproduced from ref. [27]