نتایج جستجو برای: nano crystalline

تعداد نتایج: 89039  

Journal: :Chemical communications 2006
Aqif A Chaudhry Saba Haque Suela Kellici Paul Boldrin Ihtesham Rehman Fazal A Khalid Jawwad A Darr

Nano-particle hydroxyapatite (HA) rods, were rapidly synthesised using a three pump continuous hydrothermal process (using a water feed at up to 400 degrees C and at 24 MPa): the product was obtained as a highly crystalline and phase pure material, without the need for an ageing step or subsequent heat treatment.

Journal: :Chemical communications 2013
Pichaya Pattanasattayavong Guy Olivier Ngongang Ndjawa Kui Zhao Kang Wei Chou Nir Yaacobi-Gross Brian C O'Regan Aram Amassian Thomas D Anthopoulos

The optical, structural and charge transport properties of solution-processed films of copper(I) thiocyanate (CuSCN) are investigated in this work. As-processed CuSCN films of ~20 nm in thickness are found to be nano-crystalline, highly transparent and exhibit intrinsic hole transporting characteristics with a maximum field-effect mobility in the range of 0.01-0.1 cm(2) V(-1) s(-1).

Journal: :Chemical communications 2006
Shao-Lu Li Ke-Jian Jiang Ke-Feng Shao Lian-Ming Yang

Two novel metal-free organic dyes containing thienothiophene and thiophene segments have been synthesized. Nano-crystalline TiO2 dye-sensitized solar cells were fabricated using these dyes as light-harvesting sensitizers, and a high solar energy-to-electricity conversion efficiency of 6.23% was achieved.

2004
Laurence C. Chow Limin Sun Bernard Hockey

In previous studies nano sized hydroxyapatite (HA) particles were prepared by solgel or precipitation methods, in which the products were washed by aqueous or non-aqueous liquids to remove impurities or undesired components. The washing is know to modify the surfaces of the cystalline particles. This study evaluated properties of nano HA materials prepared by a spray drying method in which the ...

2011
Mi-Hee Jung Hyoyoung Lee

In this research, nanoimprint lithography (NIL) was used for patterning crystalline zinc oxide (ZnO) nanorods on the silicon substrate. To fabricate nano-patterned ZnO nanorods, patterning of an n-octadecyltrichlorosilane (OTS) self-assembled monolayers (SAMs) on SiO2 substrate was prepared by the polymer mask using NI. The ZnO seed layer was selectively coated only on the hydrophilic SiO2 surf...

2015
Francesca Risplendi Marco Bernardi Giancarlo Cicero Jeffrey C. Grossman

Articles you may be interested in Progressive structural and electronic properties of nano-structured carbon atomic chains Nanostructural interpretation for elastic softening of amorphous carbon induced by the incorporation of silicon and hydrogen atoms Comparative analysis of electronic structure and optical properties of crystalline and amorphous silicon nitrides Electron cyclotron resonance ...

2010
Gerald Lucovsky James C Phillips

This paper distinguishes between two different scales of medium range order, MRO, in non-crystalline SiO(2): (1) the first is ~0.4 to 0.5 nm and is obtained from the position of the first sharp diffraction peak, FSDP, in the X-ray diffraction structure factor, S(Q), and (2) the second is ~1 nm and is calculated from the FSDP full-width-at-half-maximum FWHM. Many-electron calculations yield Si-O...

Due to its biocompatibility, bioactivity and high durability properties, hydroxyapatite (HA) has a wide range of applications in medical cases such as bone defect treatment and bone tissue regeneration. Biological apatite as the most important integrity of the mineral part of hard tissues consists of tiny hydroxyapatite crystals in nanoregime. It seems that using the artificial hydroxyapatite...

In this research, novel functionally graded Ni-P coating was deposited with electroless process. The content of phosphorus was controlled to change gradual through the thickness of the coating. During the plating, bath temperature and pH were changed at specified intervals to obtain functionally graded structure. To compare the properties of functionally graded coating with Ni-P single-layer co...

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