نتایج جستجو برای: amorphous film

تعداد نتایج: 114036  

2003
R. Cerc Korošec P. Bukovec B. Pihlar J. Padežnik Gomilšek

Nickel oxide thin films have been widely studied as an optical active layer in electrochromic devices. It is well known for these films that thermal treatment is the key factor which determines the electrochromic effect during potential cycling. Therefore, it is extremely important to perform thermal analysis on the thin films rather than on the corresponding xerogels. In this article, the ther...

Journal: :Chemical communications 2007
Jung Hoon Kim Nuri Oh Chang Kyung Kim Chong Seung Yoon

A dense layer of amorphous carbon nanofibers was fabricated by pyrolyzing a thin film of polyimide using a monolayer of gold nanoparticles as a catalyst.

2017
H. Q. Tu B. Liu D. W. Huang X. Z. Ruan B. You Z. C. Huang Y. Zhai Y. Gao J. Wang L. J. Wei Y. Yuan Y. B. Xu J. Du

A 3.5 nm amorphous CoFeB film was sputtered on GaAs (001) wafer substrate without applying magnetic field during deposition, and a significant in-plane uniaxial magnetic anisotropy (UMA) field (Hu) of about 300 Oe could be achieved. To precisely determine the intrinsic Gilbert damping constant (α) of this film, both ferromagnetic resonance (FMR) and time-resolved magneto-optical Kerr effect (TR...

2007
C. Monokroussos A. Al Tarabsheh R. Gottschalg A. N. Tiwari

The purpose of this paper is to model the performance of thin film amorphous silicon (a-Si:H) solar cells under AM1.5G spectral conditions. In this work, a numerical model for the investigation of thin film amorphous silicon p-i-n cells has been developed. The light absorption is treated as a non-uniform, exponentially decaying function, which also allows to use spectral ensembles to be investi...

2014
D. Bruce Buchholz Qing Ma Diego Alducin Arturo Ponce Miguel Jose-Yacaman Rabi Khanal Julia E. Medvedeva Robert P. H. Chang

A series of In2O3 thin films, ranging from X-ray diffraction amorphous to highly crystalline, were grown on amorphous silica substrates using pulsed laser deposition by varying the film growth temperature. The amorphous-to-crystalline transition and the structure of amorphous In2O3 were investigated by grazing angle X-ray diffraction (GIXRD), Hall transport measurement, high resolution transmis...

2013
David M. Tanenbaum Arnaldo Laracuente Alan C. Gallagher Alan Gallagher

Surface roughening during plasma enhanced chemical vapor deposition of hydrogenated amorphous silicon on crystal silicon substrates" Physical Review B. The morphology of a series of thin films of hydrogenated amorphous silicon ͑a-Si:H͒ grown by plasma-enhanced chemical-vapor deposition ͑PECVD͒ is studied using scanning tunneling microscopy. The substrates were atomically flat, oxide-free, single-cr...

2002
B. G. Demczyk

The growth characteristics of magnetron sputtered Co-22%Cr thin films on amorphous glass or carbon substrates have been investigated utilizing transmission electron microscopy, X-ray diffraction and electrical resistivity measurements. Results indicate that the initial deposit is “amorphous”. but that small crystallites form before the film reaches 5 nm film thickness. By 10 nm, well oriented g...

2012
Jonathan Grandidier Michael G. Deceglie Dennis M. Callahan Harry A. Atwater

We propose an approach for enhancing the absorption of thin-film amorphous silicon solar cells using periodic arrangements of resonant dielectric nanospheres deposited as a continuous film on top of a thin planar cell. We numerically demonstrate this enhancement using 3D full field finite difference time domain simulations and 3D finite element device physics simulations of a nanosphere array a...

2015
Wei-Qi Huang Shi-Rong Liu Zhong-Mei Huang Ti-Ger Dong Gang Wang Cao-Jian Qin

It is very interesting that magic electron affection promotes growth of nanocrystals due to nanoscale characteristics of electronic de Broglie wave which produces resonance to transfer energy to atoms. In our experiment, it was observed that silicon nanocrystals rapidly grow with irradiation of electron beam on amorphous silicon film prepared by pulsed laser deposition (PLD), and silicon nanocr...

2009
Jason Trask Lin Cui Andrew Wagner Uwe Kortshagen

Microcrystalline silicon thin films have attracted much attention in recent years in active matrix-liquid-crystal displays and photo-voltaic solar cells. This is due primarily to their superior transport over amorphous alternatives while maintaining a significantly lower manufacturing cost over conventional wafer-grown silicon. The general goal of current microcrystalline development efforts is...

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