Growth of well-ordered silicon dioxide films on Mo(112)

Preparation of silica films on Ru(0001): A LEEM/PEEM study

“…[1] The discovery of the details of the vitreous-crystal transition is still to come, and we and collaborators have recently made a step towards unraveling the structure of both, the crystalline as well as the vitreous phase in real space by scanning tunneling (STM) and atomic force microscopy (AFM) of a bilayer silica film grown on Ru(0001) as shown in Fig.1. [2][3][4][5][6][7][8][9][10][11][12][13] One can clearly identify the silica ring structure composed of SiO 4 -tetraedra connected into a hexagonal network of rings in the crystalline phase, while in the vitreous phase the connectivity changes and allows for larger and smaller ring systems, as predicted 80 years ago by Zachariasen. [14] After our discovery similar films have been prepared and characterized on graphene [15,16], Pd (100) [17] and Pt(111) [18] using STM and transmission electron microscopy.…”

The nucleation, growth, and stability of oxide-supported metal clusters

“…The recipe for the synthesis of the SiO 2 thin films used in these studies has been described in detail [27][28][29][30][31]. In order to achieve a high quality, ordered thin film, a Mo(112) single crystal was first oxidized in 1 · 10 )7 Torr O 2 at $800 K for 5 min to produce a p(2 · 3)-O structure.…”

Density functional theory studies of submonolayer oxidized silicon structures on Pd(111) and Pt(111)

“…Well-ordered silica layers have been grown for the purposes of model catalyst studies [4,[23][24][25][32][33][34][35][36][37][38][39][40][41][42][43][44][45]. Schroeder et al successfully grew thin well ordered layers of silica on Mo(1 1 2) [39,40]. Several DFT studies have been performed suggesting a structure anchored to the Mo substrate via O atoms [32,[36][37][38].…”