Martin Hostalek
Merck & Co.
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Martin Hostalek.
Japanese Journal of Applied Physics | 1993
Frank König; Georg Mörsch; M. Kamp; Hans Lüth; Martin Hostalek; Ludwig Pohl
To take advantage of the benefits of gaseous precursors for the growth of AlGaAs, a reduction of the carbon and oxygen uptake from the sources is necessary. Therefore, new precursors have been developed recently to overcome these problems. An entirely new approach is the use of an intramolecular saturated precursor, where the coordinative saturation against oxygen is realised by means of a double ring structure. 1-(3-dimethylaminopropyl)-1-ala-cyclohexan (APAH) is a representative of this class of precursors. In metalorganic molecular beam epitaxy (MOMBE) the suitability of APAH for the growth of AlxGa1-xAs layers (0≤x≤1) was investigated in combination with TEGa and arsine. For the grown layers morphology and crystallinity are found to be excellent, whereas the background carrier concentrations are in the range of p=1017 to 1019 cm-3. SIMS measurements clearly identify carbon as the main acceptor. Other than carbon, nitrogen is also incorporated from APAH. Despite this, APAH is useful for particular heterostructure applications as demonstrated by quantum well structures with excellent interfaces. Therefore, in MOMBE of AlGaAs, APAH is a suitable Al precursor for applications where p-type doping of 1017 cm-3 or above is required or acceptable (e.g., in HBT).
Chemische Berichte | 1986
Gerhard E. Herberich; Wilfried Boveleth; Bernd Heßner; Martin Hostalek; Dieter P. J. Köffer; Holger Ohst; Dietmar Söhnen
Angewandte Chemie | 1986
Gerhard E. Herberich; Bernd Heßner; Martin Hostalek
Chemische Berichte | 1990
Uwe Hartmann; Wilfried Wassermann; Andreas Dietrich; Frank H. Görlitz; Ludwig Pohl; Martin Hostalek
Chemische Berichte | 1991
Gerhard E. Herberich; Ulli Englert; Martin Hostalek; Ralf Laven
Angewandte Chemie | 1990
Gerhard E. Herberich; Martin Hostalek; Ralf Laven; Roland Boese
Chemische Berichte | 1991
Herbert Schuman; Uwe Hartman; Wilfried Wassermann; Oliver Just; Andreas Dietrich; Ludwig Pohl; Martin Hostalek; Matthias Lokai
Archive | 2000
Martin Hostalek; Werner Büttner; Rolf Hafner; Chih-Peng Lu; Ching-Jung Kan; Ekkehart Seitz; Ernst Friedel
Angewandte Chemie | 1990
Gerhard E. Herberich; Martin Hostalek; Ralf Laven; Roland Boese
Archive | 1998
Claus Dusemund; Rudolf Rhein; Manuela Schweikert; Martin Hostalek