An Unconventional Role of Ligand in Continuously Tuning of Metal–Metal Interfacial Strain

Abstract

We show that embedding of a surface ligand can dramatically affect the metal-metal interfacial energy, making it possible to create nanostructures in defiance of traditional wisdom. Despite matching Au-Ag lattices, Au-Ag hybrid NPs can be continuously tuned from concentric core-shell, eccentric core-shell, acorn, to dimer structures. This method can be extended to tune even Au-Au and Ag-Ag interfaces.

DNA-modulated photo-transformation of AgCl to silver nanoparticles: visiting the formation mechanism

“…Once silver nucleus evolves on AgCl, the growth of silver nanostructures can be controlled through its interaction with an appropriate ligand [12][13][14]. Owing to DNA's programmable nature and rich chemical functionality [45][46][47][48][49], a tremendous research efforts have been devoted to utilizing DNA as a template for and a controller of nanoparticle growth [50][51][52][53].…”

“…The mechanism of nanoparticle formation has been widely explored using many analytical techniques [6][7][8][9][10][11][12]. The shape-controlled synthesis of metal nanoparticles toward tailored optical properties has been well established by chemists and material scientists [4,13,14]. Currently, the industrial production and applications of metal nanoparticles are undergoing an increasingly fast growth owing to the success of the relevant studies on surface science, plasmonics, catalysis and so on [15][16][17][18][19][20].…”

Streng zweiphasige weiche und harte Janus‐Strukturen – Synthese, Eigenschaften und Anwendungen

“…[11] Für die Herstellung von Janus-Strukturen wurden viele Syntheseverfahren entwickelt, wie Selbstorganisation, [12][13][14][15][16][17] Mikrofluidik, [18][19][20] zweiphasiges Jetting, [21][22][23] Alkenmetathese, [24] Protonierungs-Deprotonierungs-Zyklen [25] und andere mehr. [26][27][28][29] Es existieren mehrere Übersichtsartikel, in denen Syntheseverfahren, Eigenschaften und Anwendungen von Janus-Strukturen aus unterschiedlichen Blickwinkeln beschrieben werden. [8,26,[30][31][32][33][34][35][36] Die Schwerpunkte liegen auf der Diskussion von Herstellungsverfahren und der Selbstorganisation von polymeren Janus-Partikeln, [35,37,38] auf Synthesestrategien und der Selbstorganisation von sowohl polymeren als auch anorganischen Janus-Partikeln [2,8,26,30] oder auf der Entwicklung und Herstellung von Janus-Strukturen mit unterschiedlicher Morphologie (z.…”

Engineering Structural Diversity in Gold Nanocrystals by Ligand-Mediated Interface Control

“…17 However, the underlying mechanisms and the diverse functionalities of ligands are yet to be fully explored. [12][13][14][15][16][17][18][19][20] Few insights of ligand´s role in the plasmonic nanocrystal growth with solid experimental evidence have been revealed. Mechanistic understanding the role of ligand in metal crystal growth engineering and multi-functionality are thus highly desirable.…”