In case of silicon and germanium Thin and Flexible v Transferable V Processable Stackable(Homo /Hetero-junction) F. Cavallo M.G. Lagally, Soft Matter, 6, 439(2010) v Strain engineered into 3D structures v Shaped into wires or Ge ribbons polyimide 5mm w.S. Ho et al., Appl. Phys. Lett., 94, 261107(2009)Si F. Cavallo & M. G. Lagally, Soft Matter, 6, 439 (2010) W. S. Ho et al., Appl. Phys. Lett., 94, 261107 (2009)  Thin and Flexible  Transferable  Processable  Stackable (Homo- /Hetero-junction)  Strain engineered into 3D structures  Shaped into wires or ribbons In case of silicon and germanium 3