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2. Chemical studies of Fl (element 114): Heaviest chemically studied element

Author

Lens, Lotte, Yakushev, Alexander, Duellmann, Christoph, Asai, Masato, Block, Michael, David, Helena May, Despotopulos, John D., Di Nitto, Antonio, Eberhardt, Klaus, Goetz, Michael, Goetz, Stefan, Haba, Hiromitsu, Harkness-Brennan, Laura, Hessberger, Fritz-Peter, Herzberg, Rolf-Dietmar, Hinde, David, Hoffmann, Jan, Annett, Huebner, Jaeger, Egon, Judson, Daniel, Jadambaa, Khuyagbaatar, Kindler, Birgit, Konki, Joonas, Kratz, Jens Volker, Krier, Jorg, Kurz, Nikolaus, Mustapha Laatiaoui, Lahiri, Susanta, Lommel, Bettina, Maiti, Momita, Mistry, Andrew K., Mokry, Christoph, Moody, Ken, Nagame, Yuichiro, Omtvedt, Jon, Papadakis, Philippos, Pershina, Valeria, Rudolph, Dirk, Runke, Joerg, Schaedel, Matthias, Scharrer, Paul, Sato, Tetsuya, Shaughnessy, Dawn, Schausten, Brigitta, Steiner, Jutta, Thoerle-Pospiech, Petra, Trautmann, Norbert, Tsukada, Kazuaki, Uusitalo, Juha, Ward, Andrew, Wegrzecki, Maciej, Williams, Elizabeth, Wiehl, Norbert, and Yakusheva, Vera

Published
2017

3. Online chemical adsorption studies of Hg, Tl, and Pb on SiO2 and Au surfaces in preparation for chemical investigations on Cn, Nh, and Fl at TASCA

Author

Lens, Lotte, primary, Yakushev, Alexander, additional, Düllmann, Christoph Emanuel, additional, Asai, Masato, additional, Ballof, Jochen, additional, Block, Michael, additional, David, Helena May, additional, Despotopulos, John, additional, Di Nitto, Antonio, additional, Eberhardt, Klaus, additional, Even, Julia, additional, Götz, Michael, additional, Götz, Stefan, additional, Haba, Hiromitsu, additional, Harkness-Brennan, Laura, additional, Heßberger, Fritz Peter, additional, Herzberg, Rodi D., additional, Hoffmann, Jan, additional, Hübner, Annett, additional, Jäger, Egon, additional, Judson, Daniel, additional, Khuyagbaatar, Jadambaa, additional, Kindler, Birgit, additional, Komori, Yukiko, additional, Konki, Joonas, additional, Kratz, Jens Volker, additional, Krier, Jörg, additional, Kurz, Nikolaus, additional, Laatiaoui, Mustapha, additional, Lahiri, Susanta, additional, Lommel, Bettina, additional, Maiti, Moumita, additional, Mistry, Andrew K., additional, Mokry, Christoph, additional, Moody, Ken, additional, Nagame, Yuichiro, additional, Omtvedt, Jon Petter, additional, Papadakis, Philippos, additional, Pershina, Valeria, additional, Runke, Jörg, additional, Schädel, Matthias, additional, Scharrer, Paul, additional, Sato, Tetsuya, additional, Shaughnessy, Dawn, additional, Schausten, Brigitta, additional, Thörle-Pospiech, Petra, additional, Trautmann, Norbert, additional, Tsukada, Kazuaki, additional, Uusitalo, Juha, additional, Ward, Andrew, additional, Wegrzecki, Maciej, additional, Wiehl, Norbert, additional, and Yakusheva, Vera, additional

Published
2018
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4. Planar silicon light emitting arrays for the 3–12 μm spectral band.

Author

Malyutenko, V. K., Malyutenko, O. Yu., Bogatyrenko, V. V., Tykhonov, A. M., Piotrowski, Tadeusz, Grodecki, Remigiusz, Pultorak, Jerzy, and Wegrzecki, Maciej

Subjects
LIGHT emitting diodes, SILICON spectra, WIDE gap semiconductors, BLACKBODY radiation, EMISSIVITY
Abstract

Silicon light emitting diode arrays made by industrial planar technology and operating at T>300 K in the double injection mode have been shown to be an efficient emitters of the infrared (IR) radiation in the 3–12 μm spectral band. We show that due to free carrier injection in an optically thin base, which makes its emissivity to increase at the wavelengths of the free carrier absorption, the devices have thermal emission output power of 2–3 mW and local power density up to 1 mW/mm2 at T=473 K. The 0.5-mm-thick 6×6 mm2 emitting pixel of an array demonstrates the power conversion efficiency of 13%, a time response of 300 μs, and an apparent temperature of the IR radiation of 400 K, which make the device practical for use in IR dynamic scene simulation techniques. [ABSTRACT FROM AUTHOR]

Published
2009
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6. Planar silicon light emitting arrays for the 3-12 [mu]m spectral band

Author

Malyutenko, V.K., Malyutenko, O. Yu., Bogatyrenko, V.V., Tykhonov, A.M., Piotrowski, Tadeusz, Grodecki, Remigiusz, Pultorak, Jerzy, and Wegrzecki, Maciej

Subjects
Infrared equipment -- Usage, Light-emitting diodes -- Electric properties, Light-emitting diodes -- Optical properties, Semiconductors -- Electric properties, Semiconductors -- Optical properties, Silicon -- Electric properties, Silicon -- Optical properties, Physics
Abstract

The article explains the development and the applications of the planar silicon light emitting arrays, which are used for the emission of the infrared radiation in the 3-12 [mu]m spectral band. The device is shown to be widely used for numerous IR dynamic sense simulation applications.

Published
2009

7. Superheavy Element Flerovium (Element 114) Is a Volatile Metal

Author

Yakushev, Alexander, primary, Gates, Jacklyn M., additional, Türler, Andreas, additional, Schädel, Matthias, additional, Düllmann, Christoph E., additional, Ackermann, Dieter, additional, Andersson, Lise-Lotte, additional, Block, Michael, additional, Brüchle, Willy, additional, Dvorak, Jan, additional, Eberhardt, Klaus, additional, Essel, Hans G., additional, Even, Julia, additional, Forsberg, Ulrika, additional, Gorshkov, Alexander, additional, Graeger, Reimar, additional, Gregorich, Kenneth E., additional, Hartmann, Willi, additional, Herzberg, Rolf-Dietmar, additional, Heßberger, Fritz P., additional, Hild, Daniel, additional, Hübner, Annett, additional, Jäger, Egon, additional, Khuyagbaatar, Jadambaa, additional, Kindler, Birgit, additional, Kratz, Jens V., additional, Krier, Jörg, additional, Kurz, Nikolaus, additional, Lommel, Bettina, additional, Niewisch, Lorenz J., additional, Nitsche, Heino, additional, Omtvedt, Jon Petter, additional, Parr, Edward, additional, Qin, Zhi, additional, Rudolph, Dirk, additional, Runke, Jörg, additional, Schausten, Brigitta, additional, Schimpf, Erwin, additional, Semchenkov, Andrey, additional, Steiner, Jutta, additional, Thörle-Pospiech, Petra, additional, Uusitalo, Juha, additional, Wegrzecki, Maciej, additional, and Wiehl, Norbert, additional

Published
2014
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8. Online chemical adsorption studies of Hg, Tl, and Pb on SiO2and Au surfaces in preparation for chemical investigations on Cn, Nh, and Fl at TASCA

Author

Lens, Lotte, Yakushev, Alexander, Düllmann, Christoph Emanuel, Asai, Masato, Ballof, Jochen, Block, Michael, David, Helena May, Despotopulos, John, Di Nitto, Antonio, Eberhardt, Klaus, Even, Julia, Götz, Michael, Götz, Stefan, Haba, Hiromitsu, Harkness-Brennan, Laura, Heßberger, Fritz Peter, Herzberg, Rodi D., Hoffmann, Jan, Hübner, Annett, Jäger, Egon, Judson, Daniel, Khuyagbaatar, Jadambaa, Kindler, Birgit, Komori, Yukiko, Konki, Joonas, Kratz, Jens Volker, Krier, Jörg, Kurz, Nikolaus, Laatiaoui, Mustapha, Lahiri, Susanta, Lommel, Bettina, Maiti, Moumita, Mistry, Andrew K., Mokry, Christoph, Moody, Ken, Nagame, Yuichiro, Omtvedt, Jon Petter, Papadakis, Philippos, Pershina, Valeria, Runke, Jörg, Schädel, Matthias, Scharrer, Paul, Sato, Tetsuya, Shaughnessy, Dawn, Schausten, Brigitta, Thörle-Pospiech, Petra, Trautmann, Norbert, Tsukada, Kazuaki, Uusitalo, Juha, Ward, Andrew, Wegrzecki, Maciej, Wiehl, Norbert, and Yakusheva, Vera

Abstract

Online gas-solid adsorption studies with single-atom quantities of Hg, Tl, and Pb, the lighter homologs of the superheavy elements (SHE) copernicium (Cn, Z=112), nihonium (Nh, Z=113), and flerovium (Fl, Z=114), were carried out using short-lived radioisotopes. The interaction with Au and SiO2surfaces was studied and the overall chemical yield was determined. Suitable radioisotopes were produced in fusion-evaporation reactions, isolated in the gas-filled recoil separator TASCA, and flushed rapidly to an adjacent setup of two gas chromatography detector arrays covered with SiO2(first array) and Au (second array). While Tl and Pb adsorbed on the SiO2surface, Hg interacts only weakly and reached the Au-covered array. Our results contribute to elucidating the influence of relativistic effects on chemical properties of the heaviest elements by providing experimental data on these lighter homologs.

Published
2018
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10. Thermochemical and Physical Properties of Element 112

Author

Eichler, Robert, primary, Aksenov, Nikolay V., additional, Belozerov, Alexey V., additional, Bozhikov, Gospodin A., additional, Chepigin, Victor I., additional, Dmitriev, Sergey N., additional, Dressler, Rugard, additional, Gäggeler, Heinz W., additional, Gorshkov, Alexander V., additional, Itkis, Mikhail G., additional, Haenssler, Florian, additional, Laube, Andreas, additional, Lebedev, Viacheslav Ya., additional, Malyshev, Oleg N., additional, Oganessian, Yuri Ts., additional, Petrushkin, Oleg V., additional, Piguet, David, additional, Popeko, Andrei G., additional, Rasmussen, Peter, additional, Shishkin, Sergey V., additional, Serov, Alexey A., additional, Shutov, Alexey V., additional, Svirikhin, Alexander I., additional, Tereshatov, Evgeny E., additional, Vostokin, Grigory K., additional, Wegrzecki, Maciej, additional, and Yeremin, Alexander V., additional

Published
2008
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11. Thermochemische und physikalische Eigenschaften von Element 112

Author

Eichler, Robert, primary, Aksenov, Nikolay V., additional, Belozerov, Alexey V., additional, Bozhikov, Gospodin A., additional, Chepigin, Victor I., additional, Dmitriev, Sergey N., additional, Dressler, Rugard, additional, Gäggeler, Heinz W., additional, Gorshkov, Alexander V., additional, Itkis, Mikhail G., additional, Haenssler, Florian, additional, Laube, Andreas, additional, Lebedev, Viacheslav Ya., additional, Malyshev, Oleg N., additional, Oganessian, Yuri Ts., additional, Petrushkin, Oleg V., additional, Piguet, David, additional, Popeko, Andrei G., additional, Rasmussen, Peter, additional, Shishkin, Sergey V., additional, Serov, Alexey A., additional, Shutov, Alexey V., additional, Svirikhin, Alexander I., additional, Tereshatov, Evgeny E., additional, Vostokin, Grigory K., additional, Wegrzecki, Maciej, additional, and Yeremin, Alexander V., additional

Published
2008
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20. TASCAを用いたCn, Nh, Fl化学実験のためのHg, Tl, PbのSiO2及びAu表面に対するオンライン化学吸着研究

Author

Lotte Lens, Alexander Yakushev, Christoph Emanuel Düllmann, Masato Asai, Jochen Ballof, Michael Block, Helena May David, John Despotopulos, Antonio Di Nitto, Klaus Eberhardt, Julia Even, Michael Götz, Stefan Götz, Hiromitsu Haba, Laura Harkness-Brennan, Fritz Peter Heßberger, Rodi D. Herzberg, Jan Hoffmann, Annett Hübner, Egon Jäger, Daniel Judson, Jadambaa Khuyagbaatar, Birgit Kindler, Yukiko Komori, Joonas Konki, Jens Volker Kratz, Jörg Krier, Nikolaus Kurz, Mustapha Laatiaoui, Susanta Lahiri, Bettina Lommel, Moumita Maiti, Andrew K. Mistry, Christoph Mokry, Ken Moody, Yuichiro Nagame, Jon Petter Omtvedt, Philippos Papadakis, Valeria Pershina, Jörg Runke, Matthias Schädel, Paul Scharrer, Tetsuya Sato, Dawn Shaughnessy, Brigitta Schausten, Petra Thörle-Pospiech, Norbert Trautmann, Kazuaki Tsukada, Juha Uusitalo, Andrew Ward, Maciej Wegrzecki, Norbert Wiehl, Vera Yakusheva, Research unit Nuclear & Hadron Physics, Lens, Lotte, Yakushev, Alexander, Düllmann, Christoph Emanuel, Asai, Masato, Ballof, Jochen, Block, Michael, David, Helena May, Despotopulos, John, Di Nitto, Antonio, Eberhardt, Klau, Even, Julia, Götz, Michael, Götz, Stefan, Haba, Hiromitsu, Harkness-Brennan, Laura, Heßberger, Fritz Peter, Herzberg, Rodi D., Hoffmann, Jan, Hübner, Annett, Jäger, Egon, Judson, Daniel, Khuyagbaatar, Jadambaa, Kindler, Birgit, Komori, Yukiko, Konki, Joona, Kratz, Jens Volker, Krier, Jörg, Kurz, Nikolau, Laatiaoui, Mustapha, Lahiri, Susanta, Lommel, Bettina, Maiti, Moumita, Mistry, Andrew K., Mokry, Christoph, Moody, Ken, Nagame, Yuichiro, Omtvedt, Jon Petter, Papadakis, Philippo, Pershina, Valeria, Runke, Jörg, Schädel, Matthia, Scharrer, Paul, Sato, Tetsuya, Shaughnessy, Dawn, Schausten, Brigitta, Thörle-Pospiech, Petra, Trautmann, Norbert, Tsukada, Kazuaki, Uusitalo, Juha, Ward, Andrew, Wegrzecki, Maciej, Wiehl, Norbert, and Yakusheva, Vera

Subjects
Analytical chemistry, chemistry.chemical_element, Electronic structure, 010402 general chemistry, 01 natural sciences, adsorption studie, thermochromatography, Homologs of superheavy element, RELATIVISTIC PERIODIC DFT, Metal, GSI, Adsorption, CHEMISTRY, 0103 physical sciences, isothermal chromatography, Physical and Theoretical Chemistry, SUPERHEAVY ELEMENTS, 010306 general physics, Copernicium, Chemistry, QUARTZ SURFACE, 0104 chemical sciences, gas phase chromatography of single atom, HEAVIEST ELEMENTS, Flerovium, ELECTRONIC-STRUCTURE, visual_art, Yield (chemistry), METAL, visual_art.visual_art_medium, Gas chromatography, Relativistic quantum chemistry, physical preseparation, SYSTEM
Abstract

Online gas-solid adsorption studies with single atom quantities of Hg, Tl, and Pb on SiO$_{2}$ and Au surfaces were carried out using short-lived radioisotopes with half-lives in the range of 4-49 s. This is a model study to measure adsorption enthalpies of superheavy elements Cn, Nh, and Fl. The short-lived isotopes were produced and separated by the gas-filled recoil separator TASCA at GSI. The products were stopped in He gas, and flushed into gas chromatography columns made of Si detectors whose surfaces were covered by SiO$_{2}$ or Au. The short-lived Tl and Pb were successfully measured by the Si detectors with the SiO$_{2}$ surface at room temperature. On the other hand, the Hg did not adsorb on the SiO$_{2}$ surface, but adsorbed on the Au surface. The results demonstrated that the adsorption properties of short-lived Hg, Tl, and Pb could be studied with this setup, and that this method is applicable to the experiment for Cn, Nh, and Fl., 半減期4$\sim$49秒の短寿命同位体を用いて、水銀(Hg), タリウム(Tl), 鉛(Pb)の単一原子レベルでのSiO$_{2}$及びAu表面への固体吸着挙動をオンライン気相実験により調べた。超重元素Cn, Nh, Flの吸着エンタルピー測定のためのモデル実験として実施した。短寿命同位体はドイツ重イオン研究所の反跳核分離装置TASCAを用いて生成・分離した。生成核はヘリウムガス中に捕集された後、SiO$_{2}$あるいはAuで表面を覆われたSi検出器で作製されたガスクロマトグラフィーカラムへと導入した。短寿命Tl及びPb同位体は室温においてSiO$_{2}$表面に吸着し、Si検出器で測定することに成功した。一方、HgはSiO$_{2}$表面には吸着せず、Au表面に吸着した。この結果より、本実験のセットアップを用いることで短寿命Hg, Tl, Pb同位体の吸着特性を調べることができると証明され、この手法がCn, Nh, Flの実験にも適用できることが確認された。

Published
2018

21. Thermochemical and physical properties of element 112.

Author

Eichler R, Aksenov NV, Belozerov AV, Bozhikov GA, Chepigin VI, Dmitriev SN, Dressler R, Gäggeler HW, Gorshkov AV, Itkis MG, Haenssler F, Laube A, Lebedev VY, Malyshev ON, Oganessian YTs, Petrushkin OV, Piguet D, Popeko AG, Rasmussen P, Shishkin SV, Serov AA, Shutov AV, Svirikhin AI, Tereshatov EE, Vostokin GK, Wegrzecki M, and Yeremin AV

Published
2008
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