• 3D silicon detectors for neutron imaging applications 

      Povoli, Marco; Kok, Angela Chun Ying; Koybasi, Ozhan; Getz, Michael Norderhaug; O'Neill, George; Roehrich, Dieter; Pedersen, Henrik; Monakhov, Eduard; Birch, Jens; Choolakkal, Arun Haridas; Kanaki, Kalliopi; Lai, Chung-Chuan; Hall-Wilton, Richard; Slavicek, Tomas; Llamas-Jansa, Isabel (Peer reviewed; Journal article, 2023)
      Neutron detection is of great importance in many fields spanning from scientific research, to nuclear science, and to medical application. The development of silicon-based neutron detectors with enhanced neutron detection ...
    • Effect of the native oxide on the Surface Passivation of Si by Al2O3 

      Getz, Michael; Povoli, Marco; Monakhov, Eduard (Peer reviewed; Journal article, 2021)
      The effect of the native silicon oxide layer on the passivation properties of Al2O3 on p-type Si surfaces has been investigated. This was done by comparing effective carrier lifetime, surface saturation current density, ...
    • Effects of La2O3 Addition into CaO-SiO2 Slag: Structural Evolution and Impurity Separation from Si-Sn Alloy 

      Zhu, Mengyi; Wu, Guixuan; Azarov, Alexander; Monakhov, Eduard; Tang, Kai; Müller, Michael; Safarian, Jafar (Peer reviewed; Journal article, 2021)
      Boron (B) and phosphorus (P) are the most problematic impurities to be removed in the production of solar-grade silicon by the metallurgical process. In this work, the distribution of B and P between CaO-(La2O3)-SiO2 slags ...
    • Improving ALD-Al2O3 Surface Passivation of Si Utilizing Pre-Existing SiOx 

      Getz, Michael Norderhaug; Povoli, Marco; Monakhov, Eduard (Peer reviewed; Journal article, 2022)
      Al 2 O 3 has rapidly become the surface passivation material of choice for p + layers of solar cells because of its high negative fixed charge, good long-term and thermal stability, and no parasitic absorption. In this ...
    • Phosphorus separation from metallurgical-grade silicon by magnesium alloying and acid leaching 

      Zhu, Mengyi; Azarov, Alexander; Monakhov, Eduard; Tang, Kai; Safarian, Jafar (Peer reviewed; Journal article, 2020)
      In this paper, the separation of phosphorus from metallurgical-grade silicon was investigated based on an Mg alloying and HCl leaching approach. Experimental results show that P concentration was reduced from initial 15.1 ...
    • Plasmonic properties of aluminium nanowires in amorphous silicon 

      Thøgersen, Annett; Jensen, Ingvild Julie Thue; Belle, Branson Delano; Stange, Marit Synnøve Sæverud; Reinertsen, Vilde Mari; Kjeldstad, Torunn; Prytz, Øystein; Monakhov, Eduard; Kepaptsoglou, Demie (Peer reviewed; Journal article, 2022)
      Plasmonic structures can help enhance optical activity in the ultraviolet (UV) region and therefore enhancing photocatalytic reactions and the detection of organic and biological species. Most plasmonic structures are ...
    • Selective etching of nanostructured a-Si:Al and its effect on porosity, Al gradient and surface oxidation 

      Kjeldstad, Torunn; Thøgersen, Annett; Stange, Marit Synnøve Sæverud; Jensen, Ingvild Julie Thue; Nilsen, Ola; Galeckas, Augustinas; Monakhov, Eduard (Peer reviewed; Journal article, 2020)
      Nanoporous amorphous silicon (a-Si) with <5 nm cylindrical pores have been fabricated by phase separation of aluminum (Al) and silicon, forming self-assembled Al nanowires (NWs), followed by subsequent removal of Al by wet ...
    • Surface effects and optical properties of self-assembled nanostructured a-Si:Al 

      Kjeldstad, Torunn; Thøgersen, Annett; Stange, Marit Synnøve Sæverud; Jensen, Ingvild Julie Thue; Monakhov, Eduard; Galeckas, Augustinas (Journal article; Peer reviewed, 2019)
      We present a study of the surface effects and optical properties of the self-assembled nanostructures comprised of vertically aligned 5 nm-diameter Al nanowires embedded in an amorphous Si matrix (a-Si:Al). The controlled ...