نتایج جستجو برای: carbon nanocone

تعداد نتایج: 281346  

Journal: :Langmuir : the ACS journal of surfaces and colloids 2014
Shibing Tian Weijie Sun Zhaosheng Hu Baogang Quan Xiaoxiang Xia Yunlong Li Dong Han Junjie Li Changzhi Gu

Control of the wetting property of diamond surface has been a challenge because of its maximal hardness and good chemical inertness. In this work, the micro/nanoarray structures etched into diamond film surfaces by a maskless plasma method are shown to fix a surface's wettability characteristics, and this means that the change in morphology is able to modulate the wettability of a diamond film ...

Journal: :ACS nano 2011
Monika Fleischer Alexander Weber-Bargioni M Virginia P Altoe Adam M Schwartzberg P James Schuck Stefano Cabrini Dieter P Kern

Near-field scanning optical microscopy enables the simultaneous topographical and subdiffraction limited optical imaging of surfaces. A process is presented for the implementation of single individually engineered gold cones at the tips of atomic force microscopy cantilevers. These cantilevers act as novel high-performance optical near-field probes. In the fabrication, thin-film metallization, ...

2012
I-Ju Teng Hui-Lin Hsu Sheng-Rui Jian Cheng-Tzu Kuo Jenh-Yih Juang

Novel cone-shaped carbon nanofiber (CNF)/silicon carbide (SiC)coated Si-nanocone (Si-NC) composite structures with excellent field emission (FE) performance have been fabricated by a simple microwave plasma chemical vapour deposition process. Transmission electron microscopy analyses reveal that the newly developed cone-shaped composite structures are composed of bamboolike herringbone CNFs gro...

2015
Eunah Kim Yunae Cho Kwang-Tae Park Jun-Hyuk Choi Seung-Hyuk Lim Yong-Hoon Cho Yoon-Ho Nam Jung-Ho Lee Dong-Wook Kim

UNLABELLED We fabricated 8-in. Si nanocone (NC) arrays using a nanoimprint technique and investigated their optical characteristics. The NC arrays exhibited remarkable antireflection effects; the optical reflectance was less than 10% in the visible wavelength range. The photoluminescence intensity of the NC arrays was an order of magnitude larger than that of a planar wafer. Optical simulations...

Journal: :international journal of nano dimension 0
s. rahimnejad 1department of chemistry, islamic azad university-shahre rey branch, tehran, iran. m. mirzaei department of chemistry, islamic azad university-lahijan branch, lahijan, iran.

density functional theory (dft) calculations were performed to investigate the properties of planar, tubular and conical forms of silicon nanostructures. the evaluated parameters including averaged bond lengths, binding energies, gap energies and dipole moments were then evaluated for the optimized models of study. the results indicated that the bond lengths between silicon atoms are different ...

Journal: :Small 2013
Andreas Horrer Christian Schäfer Katharina Broch Dominik A Gollmer Jan Rogalski Julia Fulmes Dai Zhang Alfred J Meixner Frank Schreiber Dieter P Kern Monika Fleischer

A fully parallel approach for the fabrication of arrays of metallic nanocones and triangular nanopyramids is presented. Different processes utilizing nanosphere lithography for the creation of etch masks are developed. Monolayers of spheres are reduced in size and directly used as masks, or mono- and double layers are employed as templates for the deposition of aluminum oxide masks. The masks a...

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