Coverage-dependent study of nickel tetraphenyl-porphyrin on Au(332) and Au(788)
Type
ArticleKAUST Department
Applied PhysicsApplied Physics Program, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
Material Science and Engineering Program
Physical Science and Engineering (PSE) Division
Date
2022-05-03Embargo End Date
2024-05-03Permanent link to this record
http://hdl.handle.net/10754/677868
Metadata
Show full item recordAbstract
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.Citation
Fatayer, S., Prieto, M. J., Landers, R., & de Siervo, A. (2022). Coverage-dependent study of nickel tetraphenyl-porphyrin on Au(332) and Au(788). Surface Science, 723, 122105. https://doi.org/10.1016/j.susc.2022.122105Sponsors
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.Publisher
Elsevier BVJournal
Surface ScienceAdditional Links
https://linkinghub.elsevier.com/retrieve/pii/S0039602822000905ae974a485f413a2113503eed53cd6c53
10.1016/j.susc.2022.122105