Journal Article 2D tellurium Published Erratum anisotropy bandgap engineering biomimicry black phosphorus direct writing graphene/ceramic metamaterials in situ observations laser processing laser shock multi-nanolayers nanoantennas nanogaps nanoimprinting optomechanical 3D straining post-fabrication tuning single-layer graphene size effect strain engineering superelasticity superplastic surface enhanced Raman scattering thin films triboelectric generators “bottom-up” processes