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1篇 您的检索式：作者名="Guichen Song"

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		题名	作者	年代	出处	被引量
	1	Unprecedented differences in the diamond nucleation density between carbon-and silicon-faces of 4H-silicon carbides显示文摘4H-silicon carbides deposited by diamond films have wide applications in many fields such as semiconductor heterojunction,heat sink and mechanical sealing.Nucleation plays a critical role in the deposition of the diamond film on 4H-silicon carbides.Nevertheless,as a typical polar material,the fundamental mechanism of diamond nucleation on different faces of 4H-silicon carbides has not been fully understood yet.In this contribution,nucleation of diamond was performed on the carbon-and silicon-faces of 4H-silicon carbides in a direct current chemical vapor deposition device.The nucleation density on the carbon-face is higher by 2-3 orders of magnitude compared to the silicon-face.Transmission electron microscopy verifies that there are high density diamond nuclei on the interface between the carbon-face and the diamond film,which is different from columnar diamond growth structure on the silicon-face.Transition state theory calculation reveals that the unprecedented distinction of the nucleation density between the carbon-face and the silicon-face is attributed to different desorption rates of the absorbed hydrocarbon radicals.In addition,kinetic model simulations demonstrate that it is more difficult to form CH2(s)-CH2(s)dimers on silicon-faces than carbon-faces,resulting in much lower nucleation densities on silicon-faces.	Bo Wang Pitsiri Sukkaew Guichen Song Andreas Rosenkranz Yunxiang Lu Kazhihito Nishimura Jia Wang Jilei Lyu Yang Cao Jian Yi Lars Ojamae He Li Nanjiang	2020	Chinese Chemical Letters2020，31，7：	0

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