title: Triangular gold nanoplate growth by oriented attachment of Au seeds generated by strong field laser reduction.
abstract: The synthesis of surfactant-free Au nanoplates is desirable for the development of biocompatible therapeutics/diagnostics. Rapid Δ-function energy deposition by irradiation of aqueous KAuCl4 solution with a 5 s burst of intense shaped laser pulses, followed by slow addition of H2O2, results in selective formation of nanoplates with no additional reagents. The primary mechanism of nanoplate formation is found to be oriented attachment of the spherical seeds, which self-recrystallize to form crystalline Au nanoplates.
authors.affiliation: †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States.
authors.forename: Behzad
authors.initials: B
authors.lastname: Tangeysh
authors.affiliation: †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States.
authors.forename: Katharine
authors.initials: K
authors.lastname: Moore Tibbetts
authors.affiliation: †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States.
authors.forename: Johanan H
authors.initials: JH
authors.lastname: Odhner
authors.affiliation: †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States.
authors.forename: Bradford B
authors.initials: BB
authors.lastname: Wayland
authors.affiliation: †Department of Chemistry and ‡Center for Advanced Photonics Research, Temple University, Philadelphia, Pennsylvania 19122, United States.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Levis
mesh_terms: D006046:Gold / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000494:pharmacology; D007834:Lasers; D053768:Metal Nanoparticles / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D006046:Gold; D006861:Hydrogen Peroxide
keywords: Oriented attachment; femtosecond laser processing; rapid energy deposition; triangular Au nanoplate