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440 Aktuelle Fachpublikationen zum Thema temperature

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High rate amorphous and crystalline silicon formation by pulsed DC magnetron sputtering deposition for photovoltaics

10.12.2014 | Louise R. Bailey, Gary Proudfoot, Brodie Mackenzie, Niels Andersen, Arne Karlsson, Alexander Ulyashin, physica status solidi (a), 2014

Two methods of pulsed DC magnetron sputtering deposition have been used to form high rate, hydrogen‐free crystalline silicon layers. The first method is in situ crystalline silicon deposition. The second method is high rate amorphous silicon deposition followed by an anneal to induce ...

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Synthesis, characterization, and electronic structure of few‐layer MoSe2 granular films (Phys. Status Solidi A 12∕2014)

09.12.2014 | Zafer Mutlu, Darshana Wickramaratne, Hamed H. Bay, Zachary J. Favors, Mihrimah Ozkan, Roger Lake, Cengiz S. Ozkan, physica status solidi (a), 2014

Atomically thin two‐dimensional (2D) transition‐metal dichalcogenides (TMDs) have attracted great attention recently due to their fascinating electronic properties. MoSe2, with an indirect band gap in the bulk form and a direct band gap in the monolayer form, holds promise for the ...

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Low‐temperature transport of charge carriers in InGaN/GaN multiple quantum well light‐emitting diodes

05.12.2014 | Ilya Prudaev, Oleg Tolbanov, Stanislav Khludkov, physica status solidi (a), 2014

Abstract The results of experimental investigation of forward current‐voltage characteristics of InGaN/GaN multiple quantum well light‐emitting diodes are presented. A new model for explaining the complex current dependence on voltage is proposed. The model is based on the assumption of space ...

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Carbon nanotube–silver nanowire composite networks on flexible substrates: High reliability and application for supercapacitor electrodes

04.12.2014 | Churl Seung Lee, Joung Eun Yoo, Kwonwoo Shin, C. O. Park, Joonho Bae, physica status solidi (a), 2014

Highly transparent, flexible and conductive networks of carbon nanotubes‐silver nanowire networks were formed on polyethylene terephthalate (PET) substrates. The high temperature and humidity tests reveal that our CNT–AgNW composite networks maintain high durability and reliability in the ...

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Zn‐poor Cu2ZnSnSe4 thin films and solar cell devices

17.11.2014 | Andrew Fairbrother, Markus Neuschitzer, Edgardo Saucedo, Alejandro Pérez‐Rodríguez, physica status solidi (a), 2014

This work reports the synthesis of photovoltaic‐grade Cu2ZnSnSe4 thin films with Zn‐poor compositions (Zn/Sn 2ZnSnSe4 requires Cu‐poor and Zn‐rich compositions, which often favor the formation the ZnSe secondary phase. Synthesis of Zn‐poor or stoichiometric films opens up prospects for ...

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Electrochemically deposited ZnO nanostructured array films as antireflection coating on silicon heterojunction solar cells

12.11.2014 | M. Petrov, K. Lovchinov, M. Mews, C. Leendertz, D. Dimova‐Malinovska, physica status solidi (a), 2014

In order to improve the short‐circuit current and the efficiency of silicon heterojunction solar cells, Ag grid/ITO/(p)a‐Si:H/(i)a‐Si:H/(n)c‐Si/(i)a‐Si:H/(n+)a‐Si:H/Al, ZnO nanostructured (NS) array films are deposited by electrochemical method on the front side of the solar cells. Aqueous ...

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Atomic‐layer‐deposited zinc oxide as tunable uncooled infrared microbolometer material (Phys. Status Solidi A 11∕2014)

28.10.2014 | Enes Battal, Sami Bolat, M. Yusuf Tanrikulu, Ali Kemal Okyay, Tayfun Akin, physica status solidi (a), 2014

ZnO is rapidly penetrating into thin‐film electronics, sensors, and optoelectronics industries due to its remarkable electronic and optical properties. Although serving a wide range of sectors, ZnO for infrared applications is an unexplored territory. That is why Tanrikulu and co‐workers (pp. ...

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Structure, ferroelectric, ferromagnetic, and piezoelectric properties of Al‐modified BiFeO3–BaTiO3 multiferroic ceramics

24.10.2014 | Wei Zhou, Qiaoji Zheng, Ying Li, Qiang Li, Yang Wan, Min Wu, Dunmin Lin, physica status solidi (a), 2014

0.725BiFe1−xAlxO3–0.275BaTiO3 + 1 mol% MnO2 ceramics were prepared by a conventional ceramic technique. The effects of Al doping and sintering temperature on microstructure, piezoelectricity and magnetism of the ceramics were studied. The crystalline structures of BFO‐BT‐BA‐x ceramics sintered ...

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Enhanced low‐field magnetoresistance of La0.7Sr0.3Mn1–xNixO3 compounds by annealing process

22.10.2014 | A. M. Ahmed, M. A. Abedellateef, H. A. Abd El‐Ghanny, Abd El Mo'ez A. Mohamed, physica status solidi (a), 2014

A study of Mn‐site substitution by Ni2+ and the effect of annealing time in polycrystalline bulk La0.7Sr0.3MnO3 in composition range (0 ≤ x ≤ 0.1) is presented. This study involves structural, electrical, magnetoresistance, and thermoelectric power (TEP) measurements. X‐ray diffraction was used ...

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Co‐evaporation process study of Cu2ZnSnSe4 thin films by in situ light scattering and in situ X‐ray diffraction

21.10.2014 | Stefan Hartnauer, Leonard A. Wägele, Frank Syrowatka, Gunar Kaune, Roland Scheer, physica status solidi (a), 2014

Multi‐stage co‐evaporation processes for the growth of Cu2ZnSnSe4 (CZTSe) thin films are investigated with time‐resolved in situ angle‐dispersive X‐ray diffraction (in situ XRD). Different preparation protocols were applied and controlled by in situ laser light scattering (in situ LLS). The ...

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