Mass migration on a polymer surface caused by photoinduced molecular rotation

摘要

We demonstrated the formation of a photoinduced surface relief grating using thin films comprising a photochromic molecular motor, 9-(2-phenyl-2,3-dihydro-cyclopenta[alnaphthalen-1-ylidene)-9/7-fluorene. Results show that mass migration occurred by patterned light irradiation prepared from interfered laser beams and a photomask.