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498 Aktuelle Fachpublikationen zum Thema temperature

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Controlled growth of PbI2 nanoplates for rapid preparation of CH3NH3PbI3 in planar perovskite solar cells

19.08.2015 | Fan Fu, Lukas Kranz, Songhak Yoon, Johannes Löckinger, Timo Jäger, Julian Perrenoud, Thomas Feurer, Christina Greten ..., physica status solidi (a), 2015

Absorbers for planar perovskite solar cells are often prepared by two‐step deposition methods, where a thick compact PbI2 layer is deposited followed by conversion to perovskite using CH3NH3I solution. The surface of the precursor layer quickly reacts with the CH3NH3I solution, which hinders ...


Simulations, fabrication, and characterization of diamond‐coated Love wave‐type surface acoustic wave sensors

18.08.2015 | A. Talbi, A. Soltani, A. Rumeau, A. Taylor, L. Drbohlavová, L Klimša, J. Kopeček, L. Fekete, M. Krečmarová, V. Mortet, physica status solidi (a), 2015

Diamond is an attractive material for biosensing applications due its chemical stability and biocompatibility and the recent development of various covalent attachment schemes for biomolecules. Acoustic sensors are highly sensitive with the capability to detect minute mass variation by ...


Influence of sintering temperature on microstructures and energy‐storage properties of barium strontium titanate glass‐ceramics prepared by sol–gel process

17.08.2015 | Jia Zhu, Yong Zhang, Xiaozhen Song, Qian Zhang, Dongliang Yang, Yongzhou Chen, physica status solidi (a), 2015

The sol–gel processing, microstructures, dielectric properties and energy‐storage properties of barium strontium titanate glass‐ceramics over the sintering temperature range of 1000–1150 °C were studied. Through the X‐ray diffraction result, it is revealed that the crystallinity increases as ...


Incorporation of nitrogen into polycrystalline diamond surfaces by RF plasma nitridation process at different temperatures: Bonding configuration and thermal stabilty studies by in situ XPS and HREELS

14.08.2015 | Maneesh Chandran, Michal Shasha, Shaul Michaelson, Rozalia Akhvlediani, Alon Hoffman, physica status solidi (a), 2015

In situ studies of low energy nitrogen species incorporated into diamond films are significant as they could lead to a better understanding of bonding configuration and defects formation of the modified surface. In this report, we investigate the interaction of radio frequency (RF) nitrogen ...


A structure zone diagram obtained by simultaneous deposition on a novel step heater: A case study for Cu2O thin films

07.08.2015 | Helge Stein, Dennis Naujoks, Dario Grochla, Chinmay Khare, Ramona Gutkowski, Stefanie Grützke, Wolfgang Schuhmann, A ..., physica status solidi (a), 2015

In thin film deposition processes, the deposition temperature is one of the crucial process parameters for obtaining films with desired properties. Usually the optimum deposition temperature is found by conducting several depositions sequentially in a time consuming process. This paper ...


Hole injection contribution to transport mechanisms in metal/p−/p++ and metal/oxide/p−/p++ diamond structures

06.08.2015 | P. Muret, D. Eon, A. Traoré, A. Maréchal, J. Pernot, E. Gheeraert, physica status solidi (a), 2015

Abstract Heterostructures such as Schottky diodes and metal/oxide/ semiconductor structures are the building blocks of diamond electronic devices. They are able to carry large current densities, up to several kA cm, if a heavily boron‐doped layer (p) is included in the semiconducting stack, ...


Preparation and study of the thermoelectric properties of nanocrystalline Sn1−xTaxO2 (0 ≤ x ≤ 0.04)

04.08.2015 | Thi Thanh Xuan Vo, Thi Ngoc Ha Le, Quoc Nghi Pham, Céline Byl, Diana Dragoe, Marie‐Geneviève Barthés‐Labrousse, Davi ..., physica status solidi (a), 2015

Sn1–xTaxO2 (0 ≤ xnominal ≤ 0.04) nanoparticles, smaller than 10 nm, were synthesized by co‐precipitation method. The solubility limit of Ta (about 0.8% mol) was carefully studied by combination of XRD, SEM, and ICP analysis. The obtained powders were sintered by using the spark plasma sintering ...


Surface effects on the mechanical behavior of silicon nanowires: Consequence on the brittle to ductile transition at low scale and low temperature

31.07.2015 | Julien Godet, Firas Abed El Nabi, Sandrine Brochard, Laurent Pizzagalli, physica status solidi (a), 2015

Abstract Understanding the origin of the brittle to ductile transition at low scale in Si requires the characterization of the elementary mechanisms governing crack formation or dislocation nucleation. By molecular dynamics simulations, we have investigated the role of three surface states of ...


Microstructure and growth kinetics of nanocrystalline diamond films deposited in large area/low temperature distributed antenna array microwave‐plasma reactor

29.07.2015 | Benoît Baudrillart, Fabien Bénédic, Ovidiu Brinza, Thomas Bieber, Thierry Chauveau, Jocelyn Achard, Alix Gicquel, physica status solidi (a), 2015

In this paper, we investigate a new distributed antenna array PECVD system, with 16 microwave plasma sources arranged in a 2D matrix, which enables the growth of 4‐inch diamond films using H2/CH4/CO2 gas mixture at low gas pressure, typically below 0.45 mbar, and at substrate temperature of ...


Charge‐carrier relaxation dynamics and ac conductivity scaling of poly(3,4‐ethylenedioxythiophene) nanoparticles

27.07.2015 | P. Chutia, A. Kumar, physica status solidi (a), 2015

An investigation of the dielectric characteristics of poly(3,4‐ethylenedioxythiophene) nanoparticles has been conducted in the frequency range 20 Hz–2 MHz and the temperature range of 80–300 K through the studies of dielectric permittivity, modulus formalism and ac conductivity. High‐resolution ...


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