Results 21 to 30 of about 2,395 (142)

Automated Growth of Si1−xGex Single Crystals with Constant Axial Gradient by Czochralski Technique

open access: yesCrystal Research and Technology, Volume 55, Issue 2, February 2020., 2020
This contribution proposes a method for the automated growth of silicon–germanium (SiGe) crystals. To be used as X‐ray and γ‐ray monochromators such crystals must have a constant germanium concentration gradient in their body. This can be achieved by growing them in a special shape.
Nikolay V. Abrosimov   +3 more
wiley   +1 more source

Comments on the paper by Mariusz W. Majewski published in Studia Historiae Scientiarum 17 (2018), pp. 89–117

open access: yesStudia Historiae Scientiarum, 2019
Several remarks on the text by Mariusz W. Majewski devoted to the history of the Institute of Metallurgy and Metal Science at the Technical University of Warsaw, and on the role of Prof. Jan Czochralski, are presented.
Paweł E. Tomaszewski
doaj   +1 more source

Fast and Slow Stages of Lifetime Degradation by Boron–Oxygen Centers in Crystalline Silicon

open access: yesphysica status solidi (b), Volume 257, Issue 1, January 2020., 2020
Apparently contradicting experiments on the light‐induced degradation (LID) in boron‐doped oxygen‐containing crystalline silicon are resolved by introduction of a concept of different kinds of activating impurities participating in boron–oxygen recombination centers.
Jan Schmidt   +3 more
wiley   +1 more source

Temperature Measurement Using Optical Fiber Methods: Overview and Evaluation

open access: yesJournal of Sensors, Volume 2020, Issue 1, 2020., 2020
The paper deals with the overview of fiber optic methods suitable for temperature measurement and monitoring. The aim is to evaluate the current research of temperature measurements in the interval from temperature close to 0 up to 1000°C. Since the measuring chain is a functional combination of optical methods, optical fiber properties, and other ...
Martin Mikolajek   +9 more
wiley   +1 more source

The works of the Institute of Metallurgy and Metallurgical Sciences at the Warsaw University of Technology, and the person of Jan Czochralski (in Polish)

open access: yesStudia Historiae Scientiarum, 2018
The article discusses the issues of implementation of important achievements in the field of metallurgy (including armored weapons, fortifications and the navy), under the supervision of prof.
Mariusz W. Majewski
doaj   +1 more source

Iron-boron pair dissociation in silicon under strong illumination [PDF]

open access: yes, 2013
The dissociation of iron-boron pairs (FeB) in Czochralski silicon under strong illumination was investigated. It is found that the dissociation process shows a double exponential dependence on time.
He, Jian   +6 more
core   +3 more sources

Nauka i uczeni w biografiach Anny Czerwińskiej-Rydel

open access: yesActa Universitatis Lodziensis. Folia Librorum, 2018
Publikacje poświęcone nauce stanowią ważną część współczesnego rynku książki dla dzieci. W zdecydowanej większości mają one formę dostosowanych do wieku dziecka leksykonów i miniencyklopedii, zarówno o charakterze ogólnym, jak i poświęconych określonemu ...
Rafał Kępa
doaj   +1 more source

Jan Czochralski – pionier światowej elektroniki i inżynierii materiałowej

open access: yesDzieje Najnowsze, 2020
Artykul ma na celu przedstawienie sylwetki Jana Czochralskiego, światowej slawy naukowca XX w. Jego glownym osiągnieciem bylo wynalezienie metody uzyskiwania monokrysztalow, do dziś stosowanej w produkcji ukladow scalonych wielkiej skali integracji. Po zakonczeniu II wojny światowej Czochralski calkowicie bezpostawnie zostal oskarzony o kolaboracje z ...
openaire   +2 more sources

Occupation as Social Practice and Ambiguous Space: The Lives of Ludwik Hirszfeld and Jan Czochralski in Warsaw, 1939–44

open access: yesActa Poloniae Historica, 2022
This article evaluates the situation of two renowned scientists in Poland, namely the microbiologist and serologist Ludwik Hirszfeld (1884–1954), and the metallurgist Jan Czochralski (1885–1953), during the time of the German occupation from 1939–45. Both scientists strove to continue their scientific work even under the conditions of occupation but ...
openaire   +1 more source

Two-stage permanent deactivation of the boron-oxygen-related recombination center in crystalline silicon [PDF]

open access: yes, 2017
We analyze the lifetime evolution during permanent deactivation of the boron-oxygen-related defect center (BO defect) in boron-doped, oxygen-rich Czochralski-grown silicon (Cz-Si).
Schmidt, J.   +2 more
core   +2 more sources

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