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1. Fabrication and characterization of high-purity germanium detectors with amorphous germanium contacts

   https://doi.org/10.1088/1748-0221/14/02/P02019  

   Meng, X.-H.; Wang, G.-J.; Wagner, M.-D.; Mei, H.; Wei, W.-Z.; Liu, J.; Yang, G.; Mei, D.-M. (February 2019, Journal of Instrumentation)
2. Germanium(II) Dithiolene Complexes

   https://doi.org/10.1002/chem.202302258  

   Tran, Phuong_M; Wang, Yuzhong; Lahm, Mitchell_E; Wei, Pingrong; Molnar, Christopher_J; Schaefer, III, Henry_F; Robinson, Gregory_H (October 2023, Chemistry – A European Journal)

   Abstract The 1 : 2 reaction of the imidazole‐based dithiolate (2) with GeCl₂ • dioxane in THF/TMEDA gives3, a TMEDA‐complexed dithiolene‐based germylene. Compound3is converted to monothiolate‐complexed (5) and N‐heterocyclic carbene‐complexed (7) germanium(II) dithiolene complexes via Lewis base ligand exchange. A bis‐dithiolene‐based germylene (8), involving a 3c–4e S‐Ge‐S bond, has also been synthesized through controlled hydrolysis of7. The bonding nature of3,5, and8was investigated by both experimental and theoretical methods. 

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3. Characterization of high-purity germanium detectors with amorphous germanium contacts in cryogenic liquids

   https://doi.org/10.1140/epjc/s10052-020-8235-9  

   Panth, R.; Liu, J.; Abt, I.; Liu, X.; Schulz, O.; Wei, W.-Z.; Mei, H.; Mei, D.-M.; Wang, G.-J. (July 2020, The European Physical Journal C)
4. Femtosecond laser polishing of germanium

   Taylor, L; Xu, J; Pomerantz, M; Smith, T; Lambropoulos, J; Qiao, J (November 2019, Optical materials express)

   Freeform optics can reduce the cost, weight, and size of advanced imaging systems, but it is challenging to manufacture the complex rotationally asymmetric surfaces to optical tolerances. To address the need for disruptive, high-precision sub-aperture forming and finishing techniques for freeform optics, we investigate an alternative, non-contact polishing methodology using femtosecond lasers, combining modeling, experiments, and demonstrations. Femtosecondlaser- based polishing of germanium was investigated using an experimentally-validated twotemperature model of laser/germanium interaction to guide the understanding and selection of laser parameters to achieve near-nonthermal ablation for polishing and figuring. For the first time to our knowledge, model-guided femtosecond laser polishing of germanium was successfully demonstrated, achieving precision material removal while maintaining single-digit nanometer optical surface quality. The demonstrated femtosecond-laser-based polishing technique lays the foundation for semiconductor optics polishing/fabrication using femtosecond lasers and opens a viable path for high-precision, complex sub-aperture optical polishing tasks on various materials. © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement 

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5. Thermal conductivity of rutile germanium dioxide

   https://doi.org/10.1063/5.0011358  

   Chae, S.; Mengle, K. A.; Lu, R.; Olvera, A.; Sanders, N.; Lee, J.; Poudeu, P. F.; Heron, J. T.; Kioupakis, E. (September 2020, Applied Physics Letters)

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