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4,573 Newest Publications about the topic doping

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Modeling and experimental studies of Hf-doped nanocrystalline SmCo7 alloy

27-Sep-2016 | Gang Hua; Xiaoyan Song; Fawei Tang; Dong Liu; Dongxin Wang; Haibin Wang; Xuemei Liu, CrystEngComm, 2016

By combining first-principle calculations and experiments, the effects of Hf doping on the stability and magnetic properties of the metastable SmCo7 alloy were studied. It is found that the single TbCu7-type phase can be well stabilized by Hf doping when the Co-2e sites are occupied in the ...

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Promoting oxide vacancy formation and p-type conductivity in SrTiO3 via alkali metal doping, a first-principles study

27-Sep-2016 | Leonardo Triggiani; Ana Belen Munoz-Garcia; Angela Agostiano; Michele Pavone, Physical Chemistry Chemical Physics, 2016

Strontium titanate (SrTiO3, STO) is a prototypical perovskite oxide, widely exploited in many technological applications, from catalysis to energy conversion devices. In the context of solid-oxide fuel cells, STO has been recently applied as epitaxial substrate for nano-sized layers of mixed ...

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Enhanced charge separation through modulation of defect-state in wide band-gap semiconductor for potential photocatalysis application: Ultrafast spectroscopy and computational studies

25-Sep-2016 | Author(s): Tuhin Kumar Maji, Damayanti Bagchi, Prasenjit Kar, Debjani Karmakar, Samir Kumar Pal, Journal of Photochemistry and Photobiology A: Chemistry, 2016

Publication date: 1 January 2017 Source:Journal of Photochemistry and Photobiology A: Chemistry, Volume 332 Author(s): Tuhin Kumar Maji, Damayanti Bagchi, Prasenjit Kar, Debjani Karmakar, Samir Kumar Pal Structural defects of wide band gap semiconductors play important role in ...

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Structural transformations in Pb1 − xBi4 + xTi4 − xMnxO15 (x = 0.2 and 0.4): a Raman scattering study

23-Sep-2016 | Anton Prasetyo, Boriana Mihailova, Veinardi Suendo, A. A. Nugroho, Zulhadjri, Ismunandar, Journal of Raman Spectroscopy, 2016

The temperature evolution of the Raman scattering of Pb1 − xBi4 + xTi4 − xMnxO15 (x = 0.2 and 0.4) on cooling from 850 to 140–130 K was studied in order to elucidate the effect of B‐site Mn3+ doping accompanied by the increase in the A‐site Bi3+ content on the structural transformations in ...

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Improved SERS Enhancement from Cubic SiC-based Semiconductor Nanowhiskers by Adjusting Energy Level

22-Sep-2016 | Wenna Liu; Tao Yang; Junhong Chen; Yingzhi Chen; Xin-mei Hou; Xuemei Han; Kuo-Chih Chou, Physical Chemistry Chemical Physics, 2016

Highly enhanced, reproducible Raman signal of 4-MBA molecule was firstly demonstrated observed on SiCNWs surface, so-called SERS of semiconductor. Such SERS enhancement can be further tuned and boosted by B-doping in SiCNWs. To unravel the SERS enhancing mechanism, theoretical calculations are ...

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Half-metallic YN2 monolayer: dual spin filtering, dual spin diode and spin Seebeck effects

22-Sep-2016 | Jie Li; Guoying Gao; Yi Min; KaiLun Yao, Physical Chemistry Chemical Physics, 2016

Most of pristine graphene-like two-dimensional materials have been found to be nonmagnetic, and the emergence of magnetism usually needs external electric field, substrate, strain, vacancy, or doping, which is not easily controlled in experiment, limiting the potential applications in ...

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ChemInform Abstract: Cu2ZnSnS4 Thin Films Generated from a Single Solution Based Precursor: The Effect of Na and Sb Doping.

22-Sep-2016 | Devendra Tiwari, Tristan Koehler, Xianzhong Lin, Robert Harniman, Ian Griffiths, Lan Wang, David Cherns, Reiner Klen ..., ChemInform, 2016

Abstract Cu2ZnSnS4 (CZTS) thin films are prepared by spin coating of a precursor solution on Mo‐coated glass substrates.

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Pushing up the magnetisation values for iron oxide nanoparticles via zinc doping: X-ray studies on the particle's sub-nano structure of different synthesis routes

22-Sep-2016 | Wojciech Szczerba; Jan Żukrowski; Marek Przybylski; Marcin Sikora; Olga Safonova; Aleksey Shmeliov; Valeria Nicolosi ..., Physical Chemistry Chemical Physics, 2016

The maximum magnetisation (saturation magnetisation) obtainable for iron oxide nanoparticles can be increased by doping the nanocrystals with non-magnetic elements such as zinc. Herein, we closely study how only slightly different synthesis approaches towards such doped nanoparticles strongly ...

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A DFT investigation of Ni-doped graphene: catalytic ability to CO oxidation

22-Sep-2016 | Xian-Yan Xu; Jing Li; Huiying Xu; Xianfang Xu; Cunyuan Zhao, New Journal of Chemistry, 2016

CO oxidation on Ni-doped graphene (Ni-Gr) has been investigated by first-principle calculations. The strong binding energy (-7.57 eV) of Ni atom at a single vacancy in graphene and the high energy barrier (3.41 eV) for Ni atom mobility in graphene suggest graphene is stable even after the Ni ...

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High Power Factor and Enhanced Thermoelectric Performance of SnTe-AgInTe2: Synergistic Effect of Resonance Level and Valence Band Convergence

22-Sep-2016 | Ananya Banik; U. Sandhya Shenoy; Sujoy Saha; Umesh V. Waghmare; Kanishka Biswas, Journal of the American Chemical Society, 2016

Understanding the basis of electronic transport and developing ideas to improve thermoelectric power factor are essential for production of efficient thermoelectric materials. Here, we report a significantly large thermoelectric power factor of ∼31.4 μW/cm·K2 at 856 K in Ag and In co-doped SnTe ...

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