Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Sascha Populoh"'
Autor:
Songhak Yoon, Anke Weidenkaff, Krzysztof Gałązka, Wenjie Xie, Sascha Populoh, Gesine Büttner, Myriam H. Aguirre
Publikováno v:
Rare Metals. 39:659-670
The thermoelectric transport properties of Zr0.43Hf0.57NiSn half-Heusler compounds were investigated for samples sintered with different spark plasma sintering (SPS) periods: 8, 32 and 72 min. By means of scanning transmission electron microscopy wit
Autor:
Duncan P. Fagg, Philipp Thiel, Andrei V. Kovalevsky, Carlos Rocha, Fernando Neto da Silva, Sascha Populoh, Narendar Nasani, Anke Weidenkaff, Gonzalo Irurueta
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
One-dimensional Haldane gap materials, such as the rare earth barium chain nickelates, have received great interest due to their vibrant one-dimensional spin antiferromagnetic character and unique structure. Herein we report how these 1D structural f
Publikováno v:
Journal of Alloys and Compounds. 692:515-521
In the present study thermoelectric properties of spark plasma sintered and subsequently air-annealed Sn 1-x Sb x O 2 (x = 0, 0.01, 0.03, 0.05) ceramic samples were characterized. It was observed that addition of Sb greatly affects density, microstru
Publikováno v:
Measurement. 90:187-191
A method for the quantification of the radiative heat losses in a steady-state thermal conductivity measurement set-up is developed based on the Stefan–Boltzmann radiation law with the assumption of a linear temperature distribution along the speci
Autor:
Xinyou Ke, Xun Shi, Yong Jiang, Lidong Chen, Yulong Li, You Zhou, Nuofu Chen, Jikun Chen, Sascha Populoh, Yanhong Lv
Publikováno v:
Materials & Design, Vol 97, Iss, Pp 7-12 (2016)
The present work shows the possibility to regulate the thermoelectric performance of SrNbxTi1-xO3 by the anion composition and its created chemical atmosphere, apart from the previously applied cation doping or substitution procedures. The chemical e
Autor:
Marc Widenmeyer, Sergey M. Mikhalev, Andrei V. Kovalevsky, Denis Alikin, Anke Weidenkaff, Alexander Tselev, Jorge R. Frade, Kiryl Zakharchuk, Wenjie Xie, Sascha Populoh
Publikováno v:
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
J. Mater. Chem. A
Journal of Materials Chemistry A
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
J. Mater. Chem. A
Journal of Materials Chemistry A
Zinc oxide (ZnO) has a very broad and versatile range of applications provided by its high abundance and optical and electrical properties, which can be further tuned by donor substitution. Al-doped ZnO is probably the most thoroughly investigated ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b8b003f1d3fd9c82233be0152a23136
Autor:
Anke Weidenkaff, Gerhard Jakob, Benjamin Balke, Ute Kolb, Paulina Komar, Sascha Populoh, Emigdio Chávez Angel, Christoph Euler, Myriam H. Aguirre, Tino Jaeger, Mathis M. Müller
Publikováno v:
physica status solidi (a). 213:732-738
The efficiency of thermoelectric materials is directly related to the dimensionless figure of merit , therefore, one of the means to improve ZT is to reduce the thermal conductivity. Our research focuses on half-Heusler superlattices (SLs) and the re
Autor:
L. Prochaska, A. Zolriasatein, Andreas Steiger-Thirsfeld, Johannes Bernardi, G. Lientschnig, Silke Paschen, Sascha Populoh, Xinlin Yan, P. Tomeš, Andrey Prokofiev, Sabine Schwarz, R. Christian, Thomas Schachinger, M. Ikeda, Peter Rogl, Anke Weidenkaff
Publikováno v:
physica status solidi (a). 213:784-801
Intermetallic clathrates are candidate materials for thermoelectric applications above room temperature. Here we explore whether their intrinsically low lattice thermal conductivities can be further reduced by nanostructuring and whether this can fur
Autor:
Sascha Populoh, Kristaps Rubenis, Songhak Yoon, Gesine Saucke, Philipp Thiel, Anke Weidenkaff
Publikováno v:
The Journal of Physical Chemistry C. 119:21860-21867
Highly dense CaMn1–xMxO3−δ (with M = Nb, Mo, Ta, and W and 0 ≤ x ≤ 0.08) n-type thermoelectric materials with low electrical resistivities are prepared from nanocrystalline powders. Their room temperature power factors outperform the best re
Publikováno v:
Journal of Solid State Chemistry. 229:62-67
Redox Reactivity and structural phase transitions have a major impact on transport and me-chemical properties of thermoelectric CaMnO{sub 3−δ}. In this study series of Ca{sub 1−x}A{sub x}Mn{sub 1−y}B{sub y}O{sub 3−δ} (0≤x,y≤0.8) compoun