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2.669 Aktuelle Fachpublikationen zum Thema temperature

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Substrate Controlled Synthesis of Benzisoxazole and Benzisothiazole Derivatives via PhI(OAc)2-Mediated Oxidation Followed by Intramolecular Oxidative O–N/S–N Bond Formation

20.11.2015 | Devireddy Anand; Om P. S. Patel; Rahul K. Maurya; Ruchir Kant; Prem P. Yadav, The Journal of Organic Chemistry, 2015

A phenyliodine(III) diacetate (PIDA)-mediated, highly efficient and tandem approach for the synthesis of aryldiazenylisoxazolo(isothiazolo)arenes from simple 2-amino-N′-arylbenzohydrazides has been developed. The reaction proceeds via formation of (E)-(2-aminoaryl)(aryldiazenyl)methanone as the ...


Mechanism of oxygen sensing on β‐Ga2O3 single‐crystal sensors for high temperatures

19.11.2015 | M. Bartic, physica status solidi (a), 2015

The oxygen‐sensing mechanism on gallium oxide sensors has been analyzed in the presence of an oxygen gas flow at elevated temperatures: 700, 750, 800, 850, 900, 950, and 1000 °C. For the present study, the sensors were prepared based on a β‐Ga2O3 single crystal in a sandwich structure using ...


Metal‐organic CVD of Y2O3 Thin Films using Yttrium tris‐amidinates 

19.11.2015 | Sarah Karle, Van‐Son Dang, Marina Prenzel, Detlef Rogalla, Hans‐Werner Becker, Anjana Devi, Chemical Vapor Deposition, 2015

Thin films of Y2O3 are deposited on Si(100) and Al2O3 (0001) substrates via metal‐organic (MO)CVD for the first time using two closely related yttrium tris‐amidinate compounds as precursors in the presence of oxygen in the temperature range 400–700 °C. The structural, morphological, and ...


Hydrogen Solubility in Hydrocarbon and Oxygenated Organic Compounds

19.11.2015 | Thi-Kim-Hoang Trinh; Jean-Charles de Hemptinne; Rafael Lugo; Nicolas Ferrando; Jean-Philippe Passarello, Journal of Chemical & Engineering Data, 2015

The hydrogen solubility in 42 organic compounds including alcohols, aldehydes, carboxylic acid, esters and ethers, glycols, n-alkanes, and water is investigated. For this purpose, the Henry's constant is collected or computed from different sources. After removing incoherent data, two temperature ...


Influence of AlN nucleation layer on vertical breakdown characteristics for GaN‐on‐Si

17.11.2015 | J. J. Freedsman, A. Watanabe, Y. Yamaoka, T. Kubo, T. Egawa, physica status solidi (a), 2015

A study of metal‐organic chemical vapor deposition (MOCVD) grown AlN nucleation layer (NL) on breakdown characteristics for GaN‐on‐Si is presented. It is widely believed that AlN NL can act as an insulator because of its large band gap ∼6.2 eV. On contrary, this study of AlN NL/Si reveals ...


OMCVD Gold Nanoparticles Covalently Attached to Polystyrene for Biosensing Applications 

17.11.2015 | Sivayini Kandeepan, Joseph A. Paquette, Joe B. Gilroy, Silvia Mittler, Chemical Vapor Deposition, 2015

Remarkable developments and successes are witnessed in the fabrication and implementation of optical sensors based on localized surface plasmon resonance (LSPR) for the investigation of chemical and biological material quantities. We report on the reproducible fabrication of chemically stable ...


Possible High Efficiency Platform for Biosensors Based on Optimum Physical Chemistry of Carbon Nanotubes 

17.11.2015 | Amin Termeh Yousefi, Hirofumi Tanaka, Samira Bagheri, Nahrizul Adib Kadri, Shoichiro Ikeda, Mohamad Rusop Mahmood, M ..., Chemical Vapor Deposition, 2015

Carbon nanotube (CNT)‐based electrochemical biosensors are used to determine the concentration of analytes by measuring mass, heat, or oxygen. CNTs, as an immobilizing platform of biomaterials, play an important role in enhancing the electron transfer mechanism of a biosensor. The large surface ...


Solution‐Processed Crystalline n‐Type Organic Transistors Stable against Electrical Stress and Photooxidation

17.11.2015 | Hee Taek Yi, Zhihua Chen, Antonio Facchetti, Vitaly Podzorov, Advanced Functional Materials, 2015

The field of organic electronics is still lacking ubiquitous organic transistors with an efficient electron (n‐type) transport that are environmentally and electrically robust. Here, solution‐processed n‐type N,N′‐1H,1H‐perfluorobutyldicyanoperylene‐carboxydi‐imide organic field‐effect ...


Controlled Burning of Forest Detritus Altering Spectroscopic Characteristics and Chlorine Reactivity of Dissolved Organic Matter: Effects of Temperature and Oxygen Availability

17.11.2015 | Jun-Jian Wang; Randy A. Dahlgren; Alex T. Chow, Environmental Science & Technology, 2015

Forest fires occur with increasing frequency and severity in the western United States, potentially altering the chemistry and quantity of dissolved organic matter (DOM) and disinfection byproduct (DBP) precursors exported from forested watersheds. However, little is known concerning effects of ...


Materials, Vol. 8, Pages 7745-7756: Origin of the Electroluminescence from Annealed-ZnO/GaN Heterojunction Light-Emitting Diodes

16.11.2015 | Hsu, Kai-Chiang ; Hsiao, Wei-Hua ; Lee, Ching-Ting ; Chen, Yan-Ting ; Liu, Day-Shan, Materials, 2015

This paper addressed the effect of post-annealed treatment on the electroluminescence (EL) of an n-ZnO/p-GaN heterojunction light-emitting diode (LED). The bluish light emitted from the 450 °C-annealed LED became reddish as the LED annealed at a temperature of 800 °C under vacuum atmosphere. The ...


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