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50 Newest Publications about the topic vacuum evaporators


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Localized surface plasmon of Ag nanoparticles affected by annealing and its coupling with the excitons of Rhodamine 6G

20-Jun-2013 | Ying-cui Fang, Liu Hong, Lei Wan, Kuan-xiang Zhang, Xin Lu et al., Journal of Vacuum Science & Technology B, 2013

Clean and uniformly distributed silver nanoparticles (AgNPs) are deposited on glass substrates using a vacuum evaporation process. The localized surface plasmon resonance (LSPR) of these AgNPs is successfully tuned from 420 to 780 nm by changing the evaporation time from 20 to 180 s. Further, it ...


Metal-vapor deposition modulation on polymer surfaces prepared by the coffee-ring effect

22-May-2013 | Tsuyoshi Tsujioka, Soft Matter, 2013

We report a novel function of a polymer coffee-ring surface called metal-vapor deposition modulation where metal-vapor atoms are deposited on the center of the polymer coffee-ring surface using vacuum evaporation but not on the ring-shaped areas at the edge. The essential factor of the ...


Corrosion resistance and cytotoxicity of a MgF2 coating on biomedical Mg–1Ca alloy via vacuum evaporation deposition method

02-Apr-2013 | N. Li, Y. D. Li, Y. B. Wang, M. Li, Y. Cheng, Y. H. Wu, Y. F. Zheng, Surface and Interface Analysis, 2013

To reduce the biocorrosion rate and enhance the biocompatibility by surface modification, MgF2 coatings were prepared on Mg–1Ca alloy using vacuum evaporation deposition method. The average thickness of the coating was about 0.95 µm. The results of immersion test and electrochemical test ...


Xylitol Fermentation Using Hemicellulose Hydrolysate Prepared by Acid Pre‐impregnated Steam Explosion of Corncob

04-Mar-2013 | Le Wang, Xiaoguang Fan, Pingwah Tang, Qipeng Yuan, Journal of Chemical Technology & Biotechnology, 2013

Abstract Background Steam explosion is widely used in a variety of plant biomass for the hydrolysis of hemicellulose. However, the hydrolysis of steam explosion suffers from low xylose yield, long hydrolysis time and highly energy consumptions, which impede the xylitol fermentation step. ...


High Hole Mobility in Triindole-Based Columnar phases: Removing the Bottleneck of Homogeneous Macroscopic Orientation

10-Jan-2013 | Angela Benito-Hernández; Upendra K. Pandey; Emma Cavero; Roberto Termine; Eva M. García-Frutos; José L. Serrano; Att ..., Chemistry of Materials, 2013

We report the synthesis, mesomorphic behavior, and mobility values of a series of highly ordered N-substituted triindole-based columnar liquid crystals. Shortening the length of N-alkylic substituents from N-dodecyl to N-methyl chains results in a drastic approach of the disks within the columns ...


Improved thermal stability of antimony‐doped amorphous selenium film for X‐ray flat‐panel detectors

27-Dec-2012 | Zexiang Chen, Miao Dong, Chun Li, Shengzi Shao, Tianyong Hu, Dequn Kang, physica status solidi (a), 2012

Abstract Amorphous selenium (a‐Se) film is a promising photoconductive material for X‐ray flat‐panel detectors (FPD) application. However, a‐Se tends to be crystalline Se at near room temperature. This remarkable temperature sensitivity limits its practical application. To prevent the ...


GISAXS study of Si nanostructures in SiO2 matrix for solar cell applications

29-Nov-2012 | Branko Pivac, Pavo Dubček, Ivana Capan, Hrvoje Zorc, Jasna Dasović, Sigrid Bernstorff, Marvin Wu, Branislav Vlahovic, physica status solidi (a), 2012

Abstract We explore the process of Si nanoparticles formation in SiO2 matrix suitable for advanced solar cells application. To this purpose a superstructure consisting of alternating 5 nm thick SiOx and SiO2 layers was deposited by high vacuum evaporation from solid sources. After high ...


Electromodulation of photoluminescence in vacuum-evaporated films of bathocuproine

19-Nov-2012 | Maciej Miśnik, Karol Falkowski, Wojciech Mróz, Waldemar Stampor, Chemical Physics, 2012

Electric field-modulated photoluminescence (EML) was measured in vacuum-evaporated films of bathocuproine (BCP), electron-transporting material commonly used in organic light-emitting diodes (OLEDs). The external electric field of 106 V/cm strength decreases long-wavelength photoluminescence (PL) ...


High Quantum Efficiency in Solution and Vacuum Processed Blue Phosphorescent Organic Light Emitting Diodes Using a Novel Benzofuropyridine‐Based Bipolar Host Material

08-Nov-2012 | Chil Won Lee, Jun Yeob Lee, Advanced Materials, 2012

High quantum efficiency in solution and vacuum processed blue phosphorescent organic light emitting diodes were achieved using a new benzofuropyridine based bipolar host material. High quantum efficiencies of 18.0% and 23.0% were obtained in soluble and vacuum evaporable blue devices.


Vacuum Evaporation of Pure Metals

16-Oct-2012 | Jafar Safarian, Thorvald A. Engh, Metallurgical and Materials Transactions A, 2012

Theories on the evaporation of pure substances are reviewed and applied to study vacuum evaporation of pure metals. It is shown that there is good agreement between different theories for weak evaporation, whereas there are differences under intensive evaporation conditions. For weak evaporation, ...


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