Effect of Substrate Surface Reconstruction on Interaction with Adsorbates: Pt on 6H-SiC(0001)

	Effect of Substrate Surface Reconstruction on Interaction with Adsorbates: Pt on 6H-SiC(0001)
	Wang, Zhen; Fu, Qiang; Bao, Xinhe
刊名	langmuir
	2010-05-18
卷号	26 期号:10 页码:7227-7232
英文摘要	three reconstructed 6h-sic(0001) surfaces, including a si-rich 3 x 3 surface, a c-rich 6 root 3 x 6 root 3 surface, and a graphitized sic surface, were used as substrates for the deposition of pt overlayers. the interaction between pt and the sic(0001) surfaces was studied by x-ray photoelectron spectroscopy (xps) and scanning tunneling microscopy (stm). pt reacts readily with the 3 x 3 surface to form platinum suicide even at room temperature. on the graphitized sic surface, metal particles with low lateral dispersion form and keep on aggregating upon annealing. in contrast, homogeneously distributed small pt nanoclusters were grown on the c-rich 6 root 3 x 6 root 3 surface. the unique nanomesh surface structure helps to stabilize the pt nanoclusters until 500 c. above 1000 c, pt tends to diffuse into the subsurface region, forming the c/pt silicide/sic(0001) interface structure. the different surface electronic structures of the three pt/sic(0001) systems were discussed as well. the present data show that surface reconstruction provides;in effective route to control the growth of metal overlayers and the formation of metal/substrate interfaces.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, multidisciplinary ; chemistry, physical ; materials science, multidisciplinary
研究领域[WOS]	chemistry ; materials science
关键词[WOS]	silicon-carbide ; electron-diffraction ; epitaxial graphene ; atomic-structure ; core-level ; stm ; morphology ; sic(0001) ; semiconductor ; spectroscopy
收录类别	SCI
语种	英语
WOS记录号	WOS:000277398600050
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/141902]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhen,Fu, Qiang,Bao, Xinhe. Effect of Substrate Surface Reconstruction on Interaction with Adsorbates: Pt on 6H-SiC(0001)[J]. langmuir,2010,26(10):7227-7232.
APA	Wang, Zhen,Fu, Qiang,&Bao, Xinhe.(2010).Effect of Substrate Surface Reconstruction on Interaction with Adsorbates: Pt on 6H-SiC(0001).langmuir,26(10),7227-7232.
MLA	Wang, Zhen,et al."Effect of Substrate Surface Reconstruction on Interaction with Adsorbates: Pt on 6H-SiC(0001)".langmuir 26.10(2010):7227-7232.