نتایج جستجو برای: crystalline growth

تعداد نتایج: 854386  

2014
Gaoxue Wang D. Z. Yang Z. Y. Zhang M. S. Si Desheng Xue Haiying He Ravindra Pandey

Articles you may be interested in Single crystalline Sc 2 O 3 / Y 2 O 3 heterostructures as novel engineered buffer approach for GaN integration on Si (111) Growth of high crystalline quality semi-insulating GaN layers for high electron mobility transistor applications Growth stresses and cracking in GaN films on (111) Si grown by metal-organic chemical-vapor deposition. I. AlN buffer layers

Transition metal dichalcogenide (TMDC) materials are very important inelectronic and optical integrated circuits and their growth is of great importance in thisfield. In this paper we present growth and fabrication of MoS2 (Molibdan DiSulfide)thin films by chemical bath method (CBD). The CBD method of growth makes itpossible to simply grow large area scale of the thin la...

Journal: :The journal of physical chemistry. B 2010
Se-Woong Park Jeong-Min Choi Kwang Hyun Lee Han Woong Yeom Seongil Im Young Kook Lee

We report on the amorphous-to-crystalline phase transformation of rubrene thin films. The crystallization of the organic thin films displays disk-like domains whose nucleation and growth follow phase transformation kinetics well-established for inorganic materials under certain time and temperature conditions. We understood that the crystallization of amorphous rubrene thin film shows site-satu...

2006
Christine Esber Richardson Young-Bae Park Harry A. Atwater Thomas J. Watson

We investigate the low-temperature growth of crystalline thin silicon films: epitaxial, twinned, and polycrystalline, by hot-wire chemical vapor deposition HWCVD . Using Raman spectroscopy, spectroscopic ellipsometry, and atomic force microscopy, we find the relationship between surface roughness evolution and i the substrate temperature 230–350 °C and ii the hydrogen dilution ratio H2/SiH4=0–4...

2007
Y. A. XI K. X. CHEN F. MONT J. K. KIM E. F. SCHUBERT C. WETZEL W. LIU X. LI

A systematic study is performed to optimize aluminum nitride (AlN) epilayers grown on (0001) sapphire by metal-organic vapor-phase epitaxy. Specifically, the impact of the AlN nucleation conditions on the crystalline quality and surface morphology of AlN epilayers is studied. Atomic force microscopy (AFM) and x-ray diffraction (XRD) results reveal that the nucleation layer plays a critical role...

Journal: :Nanotechnology 2009
I Zardo L Yu S Conesa-Boj S Estradé Pierre Jean Alet J Rössler M Frimmer P Roca I Cabarrocas F Peiró J Arbiol J R Morante A Fontcuberta I Morral

Silicon nanowires have been grown with gallium as catalyst by plasma enhanced chemical vapor deposition. The morphology and crystalline structure has been studied by electron microscopy and Raman spectroscopy as a function of growth temperature and catalyst thickness. We observe that the crystalline quality of the wires increases with the temperature at which they have been synthesized. The cry...

Journal: :international journal of bio-inorganic hybrid nanomaterials 2015
m. kargar m. ghashang m.r. mohammad shafiee

in this study, a feasible green method for the synthesis of copper oxide nanocrystalline is described by using sour cherry juice which has a significant effect on crystalline size, and morphology. the benefits of the green method, not only nanometer scale are formed but also low-cost method are obtained in a normal atmosphere which it has been used (ch3coo)2cu.h2o individually as cu sources. al...

2007
Richard R. Lunt Jay B. Benziger Stephen R. Forrest

Organic semiconductors have gained tremendous attention over the last two decades due to their potential for use in thin film transistors (TFTs), sensors, solar cells and organic light emitting diodes The best device performances (particularly for TFTs) have often been achieved using free standing single crystals. However, in general the size, thickness, and shape of such crystals are not easil...

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