全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:... Chi-Hsien Huang , Seiji Samukawa , Akihiro Murayama
来源:[J].Nanoscale Research Letters(IF 2.524), 2013, Vol.8 (1), pp.1-7Springer
摘要:Abstract(#br)We study the temperature dependence of time-resolved photoluminescence (PL) in closely packed alignment of Si nanodisks (NDs) with SiC barriers, fabricated by neutral beam etching using bio-nano-templates. The PL time profile indicates three decaying components with ...
作者:... Mohammad Maksudur Rahman , Noritaka Usami , Seiji Samukawa
来源:[J].Nanoscale Research Letters(IF 2.524), 2013, Vol.8 (1), pp.1-7Springer
摘要:Abstract(#br)We fabricated a three-dimensional (3D) stacked Si nanodisk (Si-ND) array with a high aspect ratio and uniform size by using our advanced top-down technology consisting of bio-template and neutral beam etching processes. We found from conductive atomic microscope meas...
作者:... Makoto Igarashi , Seiji Samukawa , Akihiro Murayama
来源:[J].Nanoscale Research Letters(IF 2.524), 2012, Vol.7 (1), pp.1-5Springer
摘要:Abstract(#br)The authors study plasmonic enhancements of photoluminescence (PL) in Si nanodisk (ND) arrays hybridized with nanostructures such as nanoplates of Au, where these hybrid nanostructures are fabricated by fully top-down lithography: neutral-beam etching using bio-nano-...
作者:... Makoto Igarashi , Seiji Samukawa , Akihiro Murayama
来源:[J].Nanoscale Research Letters(IF 2.524), 2012, Vol.7 (1), pp.1-5Springer
摘要:Abstract(#br)The picosecond carrier dynamics in a closely packed Si-nanodisk (Si-ND) array with ultrathin potential barrier fabricated by neutral beam etching using bio-nano-templates was investigated by time-resolved photoluminescence (PL). The PL decay curves were analyzed...
作者:... Yiming Li , Seiji Samukawa , Edward Yi Chang
来源:[J].Vacuum(IF 1.53), 2019Elsevier
摘要:Abstract(#br)Indium gallium nitride (InGaN) samples were grown on sapphire substrate with low temperature GaN buffer by metalorganic chemical vapor deposition (MOCVD) under varying growth conditions, such as temperature, pressure and ammonia flow. Although high indium compos...
作者:Seiji Samukawa
来源:[J].Microelectronic Engineering(IF 1.224), 2000, Vol.53 (1), pp.69-76Elsevier
摘要:Abstract(#br)Novel etching techniques, such as the use of pulse-time-modulated plasma and a selective radical generation method (“radical injection method”), have been developed. The pulse-time-modulated plasma makes possible highly selective, high-rate, and charge-up-damage...
作者:... Tomokazu Matsue , Toshihisa Nozawa , Seiji Samukawa
来源:[J].Carbon(IF 5.868), 2014, Vol.67, pp.635-642Elsevier
摘要:Abstract(#br)Amorphous hydrocarbon (aCH) material is receiving plenty of attention due to its possible wide application. However, one hurdle facing this application is that high temperature is required to express conductivity of aCH, e.g., post annealing or deposition at hig...
作者:... Chao-Sung Lai , Yen-Cheng Li , Seiji Samukawa
来源:[J].Carbon(IF 5.868), 2014, Vol.73, pp.244-251Elsevier
摘要:Abstract(#br)We have used low-damage oxygen radical treatment (O-LDRT)—with chemically reactive radicals generated in a plasma system equipped with a complementary filter—to prepare large-scale graphene oxide sheets with highly controllable levels of oxidation. Raman spectro...
作者:... Yosuke Tamura , Seiji Samukawa , Akihiro Murayama
来源:[J].Journal of Crystal Growth(IF 1.552), 2015, Vol.425, pp.295-298Elsevier
摘要:Abstract(#br)GaAs nanodisks (NDs), with a thickness of 8 nm and a diameter of 15 nm, were directly fabricated from GaAs quantum wells (QW) by damage-free neutral-beam etching using bio-nanotemplates. We observed the electron g -factor and spin dephasing in NDs with different barr...
作者:... Tomokazu Matsue , M. Meyyappan , Seiji Samukawa
来源:[J].Chemical Physics Letters(IF 2.145), 2016, Vol.665, pp.117-120Elsevier
摘要:Abstract(#br)Nitrogen-doped graphene is favored as a catalyst for oxygen reduction reaction (ORR) over rare metals. However, the effects of bonding state, nitrogen doped site and defects on catalytic conversion are still unclear. Here, we investigate oxygen reduction reaction usi...

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