EPITAXIAL INTEGRATION OF SINGLE-CRYSTAL C-60

Single crystal thin films of (111) oriented C60 are grown on epitaxial layers of single crystal antimony. The C60/Sb epitaxy is confirmed by low-energy electron diffraction which indicates that the [110BAR] in- plane directions are parallel in the two layers. X-ray diffraction sho ws that the C60 film is entirely (111) oriented and of high quality wi th sharp Bragg peaks and narrow mosaic spread. In this study the Sb fi lms were grown on GaSb, to which they are lattice matched; however, si nce Sb can be epitaxially grown on surfaces with a large lattice misma tch this technique may be applied to integrate C60 single crystals ont o many substrates or devices with a surface having sixfold symmetry.