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  • 1
    Electronic Resource
    Electronic Resource
    New stable microwave plasma passivated a-Si MIS cells with high open circuit voltage (1988)
    Springer
    Applied physics 46 (1988), S. 31-34 
    Details
    ISSN: 1432-0630
    Keywords: 81.60.-j ; 72.80.Ng ; 84.60.Jt
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A new microwave plasma surface passivation technique has been applied to a-Si∶H type solar cells at various low pressure O2 and H2O atmospheres. Open circuit voltageV OC close to 900 mV and in excess of 900 mV are obtained with Ir, and with Pt, respectively, as continuous barrier metals. The corresponding unpassivated cells (Schottky type solar cells) show considerably lower values ofV OC=650 mV. In contrast to published results involving Ni, Pd, Zr, and other metals as Schottky barriers, we have observed over a period of several months a remarkably good stability of the passivated devices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00615134
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  • 2
    Electronic Resource
    Electronic Resource
    Contribution à l'étude des glucosaminides (1952)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 35 (1952), S. 807-812 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Nous avons effectué la synthèse d'α- et de β-glucosaminides à partir des N-carbalcoxy-glucosamines et des α- et β-osides correspondants. Nous montrons que ces dérivés, très stables, ne présentent aucune mutarotation dans des conditions où les glucosides analogues en présentent une. Le groupe aminé de ces glucosaminides ne possède pas les propriétés caractéristiques d'une amine primaire. Tous ces faits rendent peu plausibles une structure glucosidique classique pour les glucosaminides.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19520350317
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Synthese einiger Methylimino-diessigsäurederivate (1952)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 35 (1952), S. 451-456 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wurde eine Methode zur Herstellung von Methylimino-diessigsäure-diäthylester-chlormethylat ausgearbeitet, das sich mit Aminoverbindungen zu einer Reihe neuer Derivate der Methylimino-diessigsäure umsetzen lässt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19520350206
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  • 4
    Electronic Resource
    Electronic Resource
    Herstellung von Iminen durch Gasphasen-Pyrolyse: N-Methyl-äthylidenimin (1968)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 51 (1968), S. 1686-1691 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: N-methyl-ethylidenimine (CH3—CH=N—CH3) was obtained by pyrolysis of 2-methylaziridine in a gas phase flow system, using quartz as a catalyst. Pyrolysis of aziridine gave mainly N-methyl-methylenimine (CH2=N—CH3). Under the conditions used in this work, pyrolysis of both compounds surprisingly showed cleavage of the CC-bond in the three-membered ring. No monomeric ethylidenimine (CH3—CH=NH) could be isolated by pyrolysis of trimeric ethylidenimine (2,4,6-trimethyl-hexahydro-1,3,5-triazine), whereas N-vinyl-ethylidenimine (CH3—CH=N—CH=CH2) could be identified as one of the pyrolysis products. NMR. data for N-methyl-ethylidenimine and N-vinyl-ethylidenimine are given for identification purposes.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19680510724
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  • 5
    Electronic Resource
    Electronic Resource
    N-Dimethylglycin-hydrazid-hydrochlorid, Reagenz zur Isolierung und Charakterisierung von Carbonyl-Derivaten (1950)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 33 (1950), S. 1773-1775 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Es wird die Herstellung eines neuen Reagenzes, des N-Dimethylglycin-hydrazid-hydrochlorids beschrieben, das sich wie Girard-Reagenz zur Isolierung von Aldehyden und Ketonen eignet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19500330646
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  • 6
    Electronic Resource
    Electronic Resource
    Über Steroide und Sexualhormone. 204. Mitteilung. Zur Stereochemie der epimeren 17a-Methyl-D-homo-testosterone (1955)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 38 (1955), S. 411-420 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die aus 17 β-Oxy-pregnenolon durch Umlagerung des Gerüstes zugänglichen 17 a-Oxy-17-keto-D-homo-Steroide VI und XII wurden mit den beiden bekannten 17a-Methyl-D-homo-testosteronen I und II stereochemisch verknüpft. Damit konnte die bereits früher vorgenommene Konfigurationszuteilung an diese beiden D-Homo-androgene bestätigt werden.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19550380206
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  • 7
    Electronic Resource
    Electronic Resource
    Über Cyankomplexe des Rheniums und Darstellung von reinem Rhenium(I)-Komplex in Lösung (1955)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 38 (1955), S. 1679-1689 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die oxydimetrische Titration wässeriger Lösungen von Re2Cl6 in Alkalicyanidlösungen verschiedener Konzentration und Alkalität wurde untersucht. Es konnte gezeigt werden, dass die Oxydation bei geeignetem Überschuss an Alkalicyanid von dem zweikernigen Komplex [ReIICy4·ReIVCy4] ausgeht, in welchem die beiden Gruppen von je 4 CN- potentiometrisch mit Silbernitrat separat bestimmt werden konnten. Die Oxydation dieses Komplexes mit Ferricyanion führte nur bis zu [ReIVCy4·ReVCy4].
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19550380704
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