TY - JOUR
T1 - Coverage-dependent study of nickel tetraphenyl-porphyrin on Au(332) and Au(788)
AU - Fatayer, Shadi
AU - Prieto, Mauricio Javier
AU - Landers, Richard
AU - de Siervo, Abner
N1 - KAUST Repository Item: Exported on 2022-05-16
Acknowledgements: Supported by FAPESP (grant numbers 2007/54829-5, 2007/08244-5), CNPq (grant numbers 482390/2012-3 and 308717/2012-0), and CAPES from Brazil. S.F. gratefully acknowledges FAPESP studentship 2012/16860-8. MJP is thankful for the funding provided by the FAPESP grant 2011/12566-3.
PY - 2022/5/3
Y1 - 2022/5/3
N2 - The coverage-dependent self-assembly of Nickel-tetraphenyl porphyins on Gold vicinal surfaces was studied by scanning tunneling microscopy. On Au(788) the molecular self-assembly is square-shaped, following the molecular symmetry. On Au(332) the molecules nucleate in a parallelogram lattice for monolayer coverage and in a squared lattice for multilayer coverage. Depending on the vicinal surface the molecules adopt either a saddle shaped or a more planar conformation. The experiments demonstrate that crystallographic direction, terrace sizes and coverage are important in establishing different assembly geometries.
AB - The coverage-dependent self-assembly of Nickel-tetraphenyl porphyins on Gold vicinal surfaces was studied by scanning tunneling microscopy. On Au(788) the molecular self-assembly is square-shaped, following the molecular symmetry. On Au(332) the molecules nucleate in a parallelogram lattice for monolayer coverage and in a squared lattice for multilayer coverage. Depending on the vicinal surface the molecules adopt either a saddle shaped or a more planar conformation. The experiments demonstrate that crystallographic direction, terrace sizes and coverage are important in establishing different assembly geometries.
UR - http://hdl.handle.net/10754/677868
UR - https://linkinghub.elsevier.com/retrieve/pii/S0039602822000905
UR - http://www.scopus.com/inward/record.url?scp=85129418455&partnerID=8YFLogxK
U2 - 10.1016/j.susc.2022.122105
DO - 10.1016/j.susc.2022.122105
M3 - Article
SN - 0039-6028
VL - 723
SP - 122105
JO - Surface Science
JF - Surface Science
ER -