Highly reliable planar GaInAs/InP photodiodes with high yield made by atmospheric pressure MOVPE

1988 ◽  
Vol 24 (5) ◽  
pp. 252 ◽  
Author(s):  
M.J. Robertson ◽  
S. Ritchie ◽  
S.K. Sargood ◽  
A.W. Nelson ◽  
L. Davis ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
High Yield

scholarly journals Catalytic Efficacy of 2,2′-Bipyridine Cobalt(II) Complex: Hydrothermal Synthesis, X-Ray Structure and Aerobic Epoxidation of Alkenes

2020 ◽  
Vol 33 (1) ◽  
pp. 10-14
Author(s):  
RAJESH BERA
Keyword(s):  
Crystal Structure ◽  
Hydrothermal Synthesis ◽  
Atmospheric Pressure ◽  
Active Catalyst ◽  
High Yield ◽  
X Ray ◽  
X Ray Crystallography ◽  
Mononuclear Cobalt ◽  
Epoxidation Of Alkenes ◽  
Acetonitrile Medium

A mononuclear cobalt(II) complex, [Co(bpy)2(NO3)](NO3)·3H2O (1) (bpy = 2,2′-bipyridine) has been synthesized hydrothermally and the crystal structure was characterized by X-ray crystallography. Complex 1 is capable of activating aerobic oxygen at atmospheric pressure. [Co(bpy)2(NO3)](NO3)·3H2O (1) was used as an active catalyst for the aerobic epoxidaion of various alkenes with isobutyraldehyde as co-reductant in acetonitrile medium. Complex 1 catalyzes the epoxidaion reaction efficiently, which reflected in high yield of products with desired selectivity.

High Reliability Planar InGaAs/InP Photodiodes Made With High Yield by Atmospheric Pressure MOVPE

1988 ◽  
Author(s):  
M. J. Robertson ◽  
C. P. Skrimshire ◽  
S. Ritchie ◽  
S. K. Sargood ◽  
A. W. Nelson ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
High Reliability ◽  
High Yield

Molten salt assisted synthesis of black titania hexagonal nanosheets with tuneable phase composition and morphology

RSC Advances ◽  
2015 ◽  
Vol 5 (104) ◽  
pp. 85928-85932 ◽  
Author(s):  
Jijian Xu ◽  
Guilian Zhu ◽  
Tianquan Lin ◽  
Zhanglian Hong ◽  
Juan Wang ◽  
...  
Keyword(s):  
Phase Composition ◽  
Low Temperature ◽  
Molten Salt ◽  
Atmospheric Pressure ◽  
High Yield

A facile high yield molten salt route to fabricate black titania hexagonal nanosheets under atmospheric pressure and low temperature.

Thinning of SiC Wafer by Plasma Chemical Vaporization Machining

2010 ◽  
Vol 645-648 ◽  
pp. 857-860 ◽  
Author(s):  
Yasuhisa Sano ◽  
Takehiro Kato ◽  
Tsutomu Hori ◽  
Kazuya Yamamura ◽  
Hidekazu Mimura ◽  
...  
Keyword(s):  
Plasma Etching ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
High Hardness ◽  
High Yield ◽  
Plasma Chemical ◽  
Power Transistors ◽  
Device Processing ◽  
Mechanical Machining ◽  
Sic Wafer

In order to reduce the on-resistance in vertical power transistors, backside thinning is required after device processing. However, it is difficult to thin an SiC wafer with a high yield rate by conventional mechanical machining because its high hardness and brittleness cause cracking and chipping during thinning. In this study, a small rectangular SiC sample was thinned by plasma chemical vaporization machining (PCVM), which is plasma etching using atmospheric-pressure plasma. As a result, the sample was successfully thinned to 40 m without any cracking or chipping. Furthermore, the surface roughness was improved after thinning, and the edge of the wafer became rounded automatically. Therefore, PCVM can be used as an effective method for thinning SiC wafers.

Oxidation of 4-nitro-o-xylene with nitric acid using N-hydroxyphthalimide under phase transfer conditions

2015 ◽  
Vol 69 (4) ◽  
Author(s):  
Song-Bo Wei ◽  
Bo Tang ◽  
Xin-Hua Peng
Keyword(s):  
Nitric Acid ◽  
Atmospheric Pressure ◽  
Phase Transfer ◽  
High Yield ◽  
Oxidizing Agent ◽  
Nitrobenzoic Acid ◽  
Radical Initiators ◽  
Cobalt Dichloride ◽  
Dilute Nitric Acid

Abstract4-Nitro-o-xylene was selectively oxidized to 2-methyl-4-nitrobenzoic acid using dilute nitric acid as the oxidizing agent under atmospheric pressure. The oxidation of 4-nitro-o-xylene was effectively promoted by an addition of radical initiators. Under reflux, 2-methyl-4-nitrobenzoic acid was afforded in high yield using nitric acid combined with N-hydroxyphthalimide, cobalt dichloride (CoCl

scholarly journals Role of Hydrogen in High-Yield Growth of Boron Nitride Nanotubes at Atmospheric Pressure by Induction Thermal Plasma

ACS Nano ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 884-893 ◽  
Author(s):  
Keun Su Kim ◽  
Martin Couillard ◽  
Homin Shin ◽  
Mark Plunkett ◽  
Dean Ruth ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Thermal Plasma ◽  
Atmospheric Pressure ◽  
Boron Nitride Nanotubes ◽  
High Yield ◽  
Induction Thermal Plasma

Experimental Research on Ion Exchange Technique to Extract Inositol from Defatted Rice Bran

2014 ◽  
Vol 962-965 ◽  
pp. 1217-1221
Author(s):  
Li Chun Zhao ◽  
Ting Liu ◽  
Di Liu
Keyword(s):  
Ion Exchange ◽  
Atmospheric Pressure ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
High Yield ◽  
Production Cycle ◽  
Microwave Assisted ◽  
Defatted Rice Bran ◽  
Hydrolysis Of ◽  
Exchange Technique

In order to solve the problem of the long production cycle and low yield of traditional inositol production process, we made several researches based on the traditional process. We experimented on the following methods to obtain a high yield qualified products: microwave-assisted phytin extraction, ion-exchange resin phytic acid absorption, elution of weak alkaline into phytate, atmospheric pressure enzymatic hydrolysis of phytate, ion exchange resin filtration, bleaching, further concentration, crystallization and refinement of hydrolysate.

Quality films from carbon fiber evaporation for thorough coverage of TEM grids

1988 ◽  
Vol 46 ◽  
pp. 418-419
Author(s):  
N. Tempel ◽  
M. C. Ledbetter
Keyword(s):  
Electron Microscopy ◽  
High Resolution Electron Microscopy ◽  
Carbon Films ◽  
Low Noise ◽  
Vacuum Evaporation ◽  
High Yield ◽  
Good Adhesion ◽  
Noise Structure ◽  
Resolution Electron ◽  
Carbon Foils

Carbon films have been a support of choice for high resolution electron microscopy since the introduction of vacuum evaporation of carbon. The desirable qualities of carbon films and methods of producing them has been extensively reviewed. It is difficult to get a high yield of grids by many of these methods, especially if virtually all of the windows must be covered with a tightly bonded, quality film of predictable thickness. We report here a method for producing carbon foils designed to maximize these attributes: 1) coverage of virtually all grid windows, 2) freedom from holes, wrinkles or folds, 3) good adhesion between film and grid, 4) uniformity of film and low noise structure, 5) predictability of film thickness, and 6) reproducibility.Our method utilizes vacuum evaporation of carbon from a fiber onto celloidin film and grid bars, adhesion of the film complex to the grid by carbon-carbon contact, and removal of the celloidin by acetone dissolution. Materials must be of high purity, and cleanliness must be rigorously maintained.

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