TY - GEN A1 - Ernst, Owen C. A1 - Uebel, David A1 - Brendler, Roman A1 - Kraushaar, Konstantin A1 - Steudel, Max A1 - Acker, Jörg A1 - Kroke, Edwin T1 - Silicon-28-Tetrafluoride as an educt of Isotope-Engineered Silicon Compounds and Bulk Materials for Quantum Systems T2 - Molecules N2 - This review provides a summary of the existing literature on a crucial raw material for the production of isotopically pure semiconductors, which are essential for the development of second-generation quantum systems. Silicon-28-tetrafluoride (28SiF4) is used as an educt for several isotope-engineered chemicals, such as silane-28 (28SiH4) and silicon-28-trichloride (28SiHCl3), which are needed in the pursuit of various quantum technologies. We are exploring the entire chain from the synthesis of 28SiF4 to quantum applications. This includes the chemical properties of SiF4, isotopic enrichment, conversion to silanes, conversion to bulk 28Si and thin films, the physical properties of 28Si (spin neutrality, thermal conductivity, optical properties), and the applications in quantum computing, photonics, and quantum sensing techniques. KW - isotopes KW - quantum computing KW - spintronic KW - microelectronics KW - enrichment KW - silane KW - tetrafluorosilane Y1 - 2024 U6 - https://doi.org/10.3390/molecules29174222 SN - 1420-3049 VL - 29 IS - 17 PB - MDPI AG ER - TY - GEN A1 - Dommaschk, Maria A1 - Sieber, Tim A1 - Acker, Jörg T1 - Lithium-ion batteries: direct solid sampling for characterisation of black mass recyclates using graphite furnace atomic absorption spectrometry T2 - Journal of Analytical Atomic Spectrometry N2 - A straightforward, efficient and robust method was developed in this study to analyse the metal content of complex recyclates from cathode coatings (LiNixMnyCo1−x−yO2) recovered from spent lithium-ion batteries. KW - lithium ion battery KW - graphite furnace atomic absorption spectrometry KW - inductively coupled plasma optical emission spectrometry KW - cathode material KW - chemical analysis KW - recycling Y1 - 2024 U6 - https://doi.org/10.1039/D4JA00207E SN - 0267-9477 VL - 39 IS - 10 SP - 2522 EP - 2531 PB - Royal Society of Chemistry (RSC) ER -