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5篇 您的检索式:作者名="H.D.Li"
    题名 作者 年代 出处 被引量
1Fabrication and characteristics of nitrogen-doped nanocrystalline diamond/p-type silicon heterojunction显示文摘Nitrogen-doped nanocrystalline diamond films(N-NDFs)have been deposited on p-type silicon(Si)by microwave plasma chemical vapor deposition.The reaction gases are methane,hydrogen,and nitrogen without the conventional argon(Ar).The N-NDFs were characterized by X-ray diffraction,Raman spectroscopy,and scanning electron microscopy.The grain sizes are of 8~10 nm in dimension.The N-NDF shows n-type behavior and the corresponding N-NDF/p-Si heterojunction diodes are realized with a high rectification ratio of 102 at^7.8 V,and the current density reaches to1.35 A/cm2 at forward voltage of 8.5 V.The findings suggest that fabricated by CH_4/H_2/N_2 without Ar,the N-NDFs and the related rectifying diodes are favorable for achieving high performance diamond-based optoelectronic devices.D.Lu H.D.Li S.H.Cheng J.J.Yuan X.Y.Lv 2010Nano-Micro Letters2010,2,1:2
2查看详情显示文摘H.D.Li Z.Y.Wang X.Kan X.Guo H.T.He Z.Wang J.N.Wang T.L.Wong N.Wang and M.H.Xie 0,,10:1
3Effect of nitrogen on deposition and field emission properties of boron-doped micro-and nano-crystalline diamond films显示文摘In this paper,we report the effect of nitrogen on the deposition and properties of boron doped diamond films synthesized by hot filament chemical vapor deposition.The diamond films consisting of micro-grains(nano-grains) were realized with low(high) boron source flow rate during the growth processes.The transition of micro-grains to nano-grains is speculated to be strongly(weekly) related with the boron(nitrogen) flow rate.The grain size and Raman spectral feature vary insignificantly as a function of the nitrogen introduction at a certain boron flow rate.The variation of electron field emission characteristics dependent on nitrogen is different between microcrystalline and nanocrystalline boron doped diamond samples,which are related to the combined phase composition,boron doping level and texture structure.There is an optimum nitrogen proportion to improve the field emission properties of the boron-doped films.L.A.Li S.H.Cheng H.D.Li Q.Yu J.W.Liu X.Y.Lv 2010Nano-Micro Letters2010,2,3:1
4method for simultaneous determination of venlafaxine and its three metabolites in human plasma显示文摘W.Liu H.L.Cai H.D.Li 0,,1:1
5查看详情显示文摘H.D.Li Z.Y.Wang X.Kan X.Guo H.T.He Z.Wang J.N.Wang T.L.Wong N.Wang and M.H.Xie 0,,:1
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