Correction to: SOLARIS National Synchrotron Radiation Centre in Krakow, Poland

Szlachetko, Jakub; Szade, J.; Beyer, Edyta; Błachucki, Wojciech; Ciochoń, Piotr; Dumas, Paul; Freindl, K.; Gazdowicz, Grzegorz; Glatt, Sebastian; Guła, Krzysztof; Hormes, J.; Indyka, Paulina; Klonecka, Agnieszka; Kołodziej, Jacek; Kołodziej, T.; Korecki, J.; Korecki, P.; Kosiorowski, Filip; Kosowska, Karolina; Kowalski, Grzegorz; Kozak, Maciej; Koziol, Paulina; Kwiatek, Wojciech M.; Liberda, Danuta; Lichtenberg, Henning; Madej, Ewa; Mandziak, Anna; Marendziak, Andrzej; Matlak, K.; Maximenko, Alexey; Nita, Paweł; Olszowska, Natalia; Panaś, Roman; Partyka-Jankowska, E.; Piszak, Marcel; Prange, Alexander; Rawski, Michał; Roman, Maciej; Rosmus, Marcin; Sikora, Marcin; Sławek, Joanna; Sobol, Tomasz; Sowa, Katarzyna; Spiridis, N.; Stȩpień, Joanna; Szczepanik, Magdalena; Ślęzak, M.; Ślęzak, T.; Tyliszczak, Tolek; Ważny, Grzegorz; Wiechecki, Jarosław; Wilgocka-Ślęzak, D.; Wolanin, Barbara; Wróbel, Paweł; Wróbel, Tomasz P.; Zając, M.; Wawrzyniak, Adriana; Stankiewicz, Marek

doi:10.1140/epjp/s13360-023-04211-x

Cited by 3 publications

(2 citation statements)

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“…The photoemission studies (ARPES, XPS) were performed using synchrotron radiation at the URANOS beamline of the SOLARIS National Synchrotron Radiation Centre (Kraków, Poland), [77] The photoemission signal was detected with Scienta-Omicron DA30-L electron analyzer. The measurements were performed at the temperature of 77 K (achieved in a flow-type liquid nitrogen cryostat) and base pressure below 5×10 −11 mbar.…”

Section: Methodsmentioning

confidence: 99%

Photoemission Study of the Thermoelectric Group IV‐VI van der Waals Crystals (GeS, SnS, and SnSe)

Tołłoczko,

Zelewski,

Ziembicki

et al. 2023

Advanced Optical Materials

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Group IV‐VI van der Waals crystals (MX, where M = Ge, Sn, and X = S, Se) are receiving increasing attention as semiconducting thermoelectric materials with nontoxic, earth‐abundant composition. Among them, SnSe is considered the most promising as it exhibits a remarkably high thermoelectric figure of merit (ZT), initially attributed to its low lattice thermal conductivity. However, it has been shown that the electronic band structure plays an equally important role in thermoelectric performance. A certain band shape, described as a “pudding mold” and characteristic for all MXs, has been predicted to significantly improve ZT by combining good electrical conductivity with high Seebeck coefficient. This subtle feature is explored experimentally for GeS, SnS, and SnSe by means of angle‐resolved photoemission spectroscopy. The technique also allows for the determination of the effective mass and Fermi level position of as‐grown undoped crystals. The findings are supported by ab initio calculations of the electronic band structure. The results greatly contribute to the general understanding of the valence band dispersion of MXs and reinforce their potential as high‐performance thermoelectric materials, additionally giving prospects for designing systems consisting of van der Waals heterostructures.

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Section: Methodsmentioning

confidence: 99%

Photoemission Study of the Thermoelectric Group IV‐VI van der Waals Crystals (GeS, SnS, and SnSe)

Tołłoczko,

Zelewski,

Ziembicki

et al. 2023

Advanced Optical Materials

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show abstract

“…The k 2 -weighted EXAFS was Fourier transformed over the limited range of k from 3 to 11 Å −1 . Ex-situ Mg Kedge XAS was collected at room temperature in a UHV chamber at PIRX beamline [21] at National Synchrotron Radiation Centre Solaris [22] , Poland in the partial (PFY) fluorescence detection mode. The data was processed using Athena software.…”

Section: Spectroscopic Characterizationmentioning

confidence: 99%

Competing mechanisms determine oxygen redox in doped Ni-Mn based layered oxides for Na-ion batteries

Li,

Mazzio,

Yaqoob

et al. 2023

Preprint

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Cation doping is an effective strategy for improving the cyclability of layered oxide cathode materials through suppression of phase transitions in the high voltage region (>~4.0V). In this study we choose Mg and Sc as representative dopants in P2- Na0.67Ni0.33Mn0.67O2. While both dopants have a positive effect on the cycling stability, they are found to influence the properties in the high voltage regime in different ways. Through a combination of RIXS, XRD, XAS, PDF analysis, and DFT, we show that it is more than just suppression of the P2 to O2 phase transition that is critical for promoting the favorable properties, and that the interplay between Ni and O activity are also critical aspects that dictate the performance. With Mg doping, we could enhance the Ni activity while simultaneously suppressing the O activity. This is surprising because it is in contrast to what has been reported in other Mn-based layered oxides where Mg is known to trigger oxygen redox. We address this contradiction by proposing a competing mechanism between Ni and Mg that impacts differences in O activity in Na0.67MgxNi0.33-xMn0.67O2 (x<0<0.33). These findings provide a new direction in understanding the effects of cation doping on the electrochemical behavior of layered oxides.

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Stabilization of hercynite structure at elevated temperatures by Mg substitution

Jastrzębska,

Stępień,

Żukrowski

2023

Materials & Design

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Correction to: SOLARIS National Synchrotron Radiation Centre in Krakow, Poland

Cited by 3 publications

References 0 publications

Photoemission Study of the Thermoelectric Group IV‐VI van der Waals Crystals (GeS, SnS, and SnSe)

Photoemission Study of the Thermoelectric Group IV‐VI van der Waals Crystals (GeS, SnS, and SnSe)

Competing mechanisms determine oxygen redox in doped Ni-Mn based layered oxides for Na-ion batteries

Stabilization of hercynite structure at elevated temperatures by Mg substitution

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