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488 Aktuelle Fachpublikationen zum Thema temperature

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The influence of HTHP treatment on the OK1 and N3 centers in natural diamond crystals

20.07.2015 | Vladimir Nadolinny, Yuri Palyanov, Olga Yuryeva, Dmitry Zedgenizov, Mariana Rakhmanova, Alexander Kalinin, Andrey Ko ..., physica status solidi (a), 2015

The structures of nitrogen‐containing paramagnetic centers OK1 and N3 have not been unambiguously determined yet. In this paper, we will present data on the influence of high temperature annealing on the paramagnetic centers OK1 and N3 in diamond. A series of natural colored diamond crystals of ...


Dislocation density reduction in multicrystalline silicon via cyclic annealing

14.07.2015 | Kwangmin Choi, Sergio Castellanos, Douglas Michael Powell, Tonio Buonassisi, Hyunjoo Choi, physica status solidi (a), 2015

Manufacturing processes to reduce dislocation densities in multicrystalline silicon (mc‐Si) solar cells could reduce the cost of photovoltaics by increasing cell efficiency with minimum additional process complexity. The present work investigates how cyclically varying temperature (stress) in ...


Investigation on evaporation and suppression of SnS during fabrication of Cu2SnS3 thin films

07.07.2015 | Zeguo Tang, Kiichi Kosaka, Hikaru Uegaki, Jakapan Chantana, Yuki Nukui, Daisuke Hironiwa, Takashi Minemoto, physica status solidi (a), 2015

Reaction processes for fabrication of Cu2SnS3 (CTS) thin films by sulfurization of Cu–Sn precursors are investigated by X‐ray diffraction (XRD) patterns and scanning electron microscope (SEM) images. The results reveal that the S atoms first react with Cu and Sn atoms to produce Cu2–xS, SnS2 ...


Thermal imaging using polymer nanocomposite temperature sensors

30.06.2015 | Elizabeth Sauerbrunn, Ying Chen, Jeffrey Didion, Miao Yu, Elisabeth Smela, Hugh A. Bruck, physica status solidi (a), 2015

Sensing temperature distributions over an area is of interest for many applications, and it is currently performed using sensors that are attached to the structure. In this work a conductive “smart paint”, made from latex and exfoliated graphite, is introduced for temperature sensing. This ...


Studies on mechanical properties of thermoelectric materials by nanoindentation

18.06.2015 | Ran He, Sonika Gahlawat, Chuanfei Guo, Shuo Chen, Tulashi Dahal, Hao Zhang, Weishu Liu, Qian Zhang, Eyob Chere, Kenn ..., physica status solidi (a), 2015

In order to fabricate durable and efficient thermoelectric generators (TEG) for applications like automobile waste heat recovery, where thermal stress is a major concern, one needs to assess the mechanical performance of the TE materials. This work reports the hardness and elastic modulus of ...


Methods comparing peculiarities of surface‐relief recording in amorphous chalcogenides

18.06.2015 | Roland Bohdan, Sandor Molnar, Sandor Kokenyesi, physica status solidi (a), 2015

Direct surface relief recording in amorphous chalcogenide semiconductors like As20Se80 and other compositions from As(Ge)–S(Se) systems essentially depends on the chemical composition, technology, and the recording conditions, resulting discrepancies in the results and interpretations. We have ...


Hopkinson effect and temperature‐dependent dielectric properties of single domain SrFe12O19 particles

17.06.2015 | M. Manikandan, K. Saravana Kumar, N. Aparnadevi, C. Venkateswaran, physica status solidi (a), 2015

Strontium hexagonal ferrite particles having single domain nature were prepared by initial ball milling followed by sintering. Effect of the synthesis method on structural, magnetic, and electrical properties were analyzed using various characterization techniques. XRD pattern reveals the ...


Thermoluminescence studies on HPHT diamond crystals exposed to β‐irradiation

11.06.2015 | M. I. Gil‐Tolano, R. Meléndrez, B. Castañeda, S. Alvarez‐Garcia, M. Pedroza‐Montero, D. Soto‐Puebla, V. Chernov, M. ..., physica status solidi (a), 2015

A study of the thermoluminescent response of commercial synthetic high pressure high temperature (HPHT) type‐Ib diamond crystals is reported. In previous works, it was found that the thermoluminescence (TL) glow curves of HPHT diamonds are non‐reproducible. In this work, we compare the TL of ...


Ge/Si core/shell nanowires with controlled low temperature grown Si shell thickness

11.06.2015 | Tomohiro Noguchi, Koudai Morita, Marolop Simanullang, Zhengyu Xu, Koichi Usami, Yukio Kawano, Tetsuo Kodera, Shunri Oda, physica status solidi (a), 2015

Ge/Si core/shell nanowires are fabricated with narrow (20 nm) Ge core and thin (2 nm) Si shell. Ge nanowires are prepared by vapor–liquid–solid (VLS) chemical vapor deposition (CVD). The low‐temperature (450 °C) process by using Si2H6 gas as a Si CVD source is essential to form ultrathin layer ...


Numerical evaluation of silicon epitaxial growth on a 450 mm diameter substrate

05.06.2015 | Misako Matsui, Hitoshi Habuka, physica status solidi (a), 2015

Silicon epitaxial growth on a 450 mm diameter silicon substrate and the related transport phenomena in a trichlorosilane‐hydrogen system were numerically evaluated. In order to minimize the gas species transport distance, the single‐wafer high‐speed rotation vertical epitaxial reactor was ...


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