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68.155 Aktuelle Fachpublikationen zum Thema temperature

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Temperature dependent evolution of wrinkled single-crystal silicon ribbons on shape memory polymers

15.01.2018 | Yu Wang; Kai Yu; H. Jerry Qi; Jianliang Xiao, Soft Matter, 2018

Shape memory polymers (SMPs) can remember two or more distinct shapes, and thus can have a lot of potential applications. This paper presents combined experimental and theoretical studies on the wrinkling of single-crystal Si ribbons on SMPs and the temperature dependent evolution. Using the ...

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Growth of a void-free Cu2SnS3 thin film using a Cu/SnS2 precursor through an intermediate-temperature pre-annealing and sulfurization process

15.01.2018 | Young Min Ko; R. B. V. Chalapathy; Liudmila Larina; Byung Tae Ahn, CrystEngComm, 2018

Ternary earth-abundant Cu2SnS3 (CTS) absorbers were synthesized from a Cu/SnS2 stacked precursor by direct annealing in a S atmosphere and by pre-annealing at lower temperature followed by sulfurization. The existing S within the chosen Cu/SnS2 precursor allows avoiding the interface voids ...

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Perovskites beyond photovoltaics: field emission from morphology-tailored nanostructured methylammonium lead triiodide

15.01.2018 | Nripen Besra; Shreyasi Pal; Bikram Kumar Das; Kalyan Kumar Chattopadhyay, Physical Chemistry Chemical Physics, 2018

Herein, methylammonium lead triiodide (CH3NH3PbI3) nanorods and nanocrystals were prepared by a facile room-temperature wet chemical method via simple variation of the synthesis parameters. Proper phase formation was confirmed by X-ray diffraction studies, whereas the morphological features were ...

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Associative detachment (AD) paths for H and CN− in the gas-phase: astrophysical implications

15.01.2018 | Stanka V. Jerosimić; Franco A. Gianturco; Roland Wester, Physical Chemistry Chemical Physics, 2018

The direct dynamical paths leading to Associative Detachment (AD) in the gas-phase, and specifically in the low-temperature regions of the Dark Molecular Clouds (DMC) in the ISM, or in cold trap laboratory experiments, are investigated with quantum chemical methods by using a high-level ...

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Associative detachment (AD) paths for H and CN− in the gas-phase: astrophysical implications

15.01.2018 | Stanka V. Jerosimić; Franco A. Gianturco; Roland Wester, Physical Chemistry Chemical Physics, 2018

The direct dynamical paths leading to Associative Detachment (AD) in the gas-phase, and specifically in the low-temperature regions of the Dark Molecular Clouds (DMC) in the ISM, or in cold trap laboratory experiments, are investigated with quantum chemical methods by using a high-level ...

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Simultaneous phase and size manipulation in NaYF4:Er3+/Yb3+ upconverting nanoparticles for a non-invasion optical thermometer

15.01.2018 | Peng Du; An Meng Deng; Laihui Luo; Jae Su Yu, New Journal of Chemistry, 2018

A series of Er3+/Yb3+-codoped NaYF4 upconverting nanoparticles were synthesized via a hydrothermal method. By controlling the synthetic temperature, the phase transition and size manipulation of nanoparticles were simultaneously realized in the studied compounds. Upon the irradiation of ...

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Simultaneous phase and size manipulation in NaYF4:Er3+/Yb3+ upconverting nanoparticles for a non-invasion optical thermometer

15.01.2018 | Peng Du; An Meng Deng; Laihui Luo; Jae Su Yu, New Journal of Chemistry, 2018

A series of Er3+/Yb3+-codoped NaYF4 upconverting nanoparticles were synthesized via a hydrothermal method. By controlling the synthetic temperature, the phase transition and size manipulation of nanoparticles were simultaneously realized in the studied compounds. Upon the irradiation of ...

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Low-temperature-flux syntheses of ultraviolet-transparent borophosphates Na4MB2P3O13 (M = Rb, Cs) exhibiting a second-harmonic generation response

15.01.2018 | Chao Wu; Longhua Li; Gang Yang; Junling Song; Bing Yan; Mark G. Humphrey; Long Zhang; Jianda Shao; Chi Zhang, Dalton Transactions, 2018

The first non-centrosymmetric mixed-alkali-metal borophosphates, Na4MB2P3O13 (M = Rb 1, Cs 2), were obtained using a low-temperature flux method. Single-crystal X-ray diffraction studies of 1 and 2 reveal that the two compounds are isostructural, both crystallizing in the orthorhombic space group ...

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Low-temperature-flux syntheses of ultraviolet-transparent borophosphates Na4MB2P3O13 (M = Rb, Cs) exhibiting a second-harmonic generation response

15.01.2018 | Chao Wu; Longhua Li; Gang Yang; Junling Song; Bing Yan; Mark G. Humphrey; Long Zhang; Jianda Shao; Chi Zhang, Dalton Transactions, 2018

The first non-centrosymmetric mixed-alkali-metal borophosphates, Na4MB2P3O13 (M = Rb 1, Cs 2), were obtained using a low-temperature flux method. Single-crystal X-ray diffraction studies of 1 and 2 reveal that the two compounds are isostructural, both crystallizing in the orthorhombic space group ...

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Covalently linked nanocomposites of polypyrrole with graphene: Strategic design toward optimized properties

15.01.2018 | Naiane Naidek, Aldo J. G. Zarbin, Elisa S. Orth, Journal of Polymer Science Part A: Polymer Chemistry, 2018

ABSTRACT Graphene‐based nanocomposites with conducting polymers have attracted increasing interest due to the enhanced synergistic properties, which can potentiate and broaden applications. In this context, covalent functionalization stands out as a strategic designing tool, which optimizes ...

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