• ALD Zn(O,S) Thin Films’ Interfacial Chemical and Structural Configuration Probed by XAS 

      Dadlani, Anup; Acharya, Shinjita; Trejo, Orlando; Fritz, Prinz; Torgersen, Jan (Journal article; Peer reviewed, 2016)
      The ability to precisely control interfaces of atomic layer deposited (ALD) zinc oxysulfide (Zn(O,S)) buffer layers to other layers allows precise tuning of solar cell performance. The O K- and S K-edge X-ray absorption ...
    • Comparing physiologically relevant corrosion performances of Mg AZ31 alloy protected by ALD and sputter coated TiO2 

      Peron, Mirco; Bin Afif, Abdulla Shaikh Abdul Qader; Dadlani, Anup; Berto, Filippo; Torgersen, Jan (Peer reviewed; Journal article, 2020)
      The utilization of Mg alloys for biomedical applications is so far underexplored due to the accelerated corrosion hampering patient recovery post implantation. Here, we explore the effectiveness of corrosion reduction of ...
    • Conductivity control via minimally invasive anti-Frenkel defects in a functional oxide 

      Evans, Donald; Holstad, Theodor Secanell; Mosberg, Aleksander Buseth; Småbråten, Didrik Rene; Vullum, Per Erik; Dadlani, Anup; Shapovalov, Konstantin; Yan, Zewu; Bourret, Edith; Gao, David Zhe; Akola, Jaakko; Torgersen, Jan; Van Helvoort, Antonius; Selbach, Sverre Magnus; Meier, Dennis (Peer reviewed; Journal article, 2020)
      Utilizing quantum effects in complex oxides, such as magnetism, multiferroicity and superconductivity, requires atomic-level control of the material’s structure and composition. In contrast, the continuous conductivity ...
    • Direct Integration of Strained-Pt Catalysts into Proton-Exchange-Membrane Fuel Cells with Atomic Layer Deposition 

      Xu, Shicheng; Wang, Zhaoxuan; Dull, Sam; Liu, Yunzhi; Lee, Dong Un; Pacheco, Lezama; Orazov, Marat; Vullum, Per Erik; Dadlani, Anup; Vinogradova, Olga; Schindler, Peter; Tam, Qizhan; Schladt, Thomas; Mueller, Jonathan E.; Kirsch, Sebastian; Huebner, Gerold; Higgins, Drew; Torgersen, Jan; Viswanathan, Venkatasubramanian; Jaramillo, Thomas F; Prinz, Friedrich (Peer reviewed; Journal article, 2021)
      The design and fabrication of lattice-strained platinum catalysts achieved by removing a soluble core from a platinum shell synthesized via atomic layer deposition, is reported. The remarkable catalytic performance for the ...
    • Improving stress corrosion cracking behavior of AZ31 alloy with conformal thin titania and zirconia coatings for biomedical applications 

      Peron, Mirco; Bin Afif, Abdulla Shaikh Abdul Qader; Dadlani, Anup; Berto, Filippo; Torgersen, Jan (Peer reviewed; Journal article, 2020)
      Magnesium and its alloys have been widely studied as materials for temporary implant devices. However, corrosion-assisted cracking phenomena such as stress corrosion cracking (SCC) continue to prevent their mainstream use. ...
    • On the evaluation of ALD TiO2, ZrO2 and HfO2 coatings on corrosion and cytotoxicity performances 

      Peron, Mirco; Cogo, Susanna; Maria, Bjelland; Bin Afif, Abdulla Shaikh Abdul Qader; Dadlani, Anup; Greggio, Elisa; Berto, Filippo; Torgersen, Jan (Peer reviewed; Journal article, 2021)
      Magnesium alloys have been widely studied as materials for temporary implants, but their use has been limited by their corrosion rate. Recently, coatings have been proven to provide an effective barrier. Though only little ...
    • Relating Electronic and Geometric Structure of Atomic Layer Deposited BaTiO3 to its Electrical Properties 

      Torgersen, Jan; Acharya, Shinjita; Dadlani, Anup; Petousis, Ioannis; Kim, Yongmin; Trejo, Orlando; Nordlund, Dennis; Fritz, Prinz (Journal article; Peer reviewed, 2016)
      Atomic layer deposition allows the fabrication of BaTiO3 (BTO) ultrathin films with tunable dielectric properties, which is a promising material for electronic and optical technology. Industrial applicability necessitates ...
    • Self-limiting atomic layer deposition of barium oxide and barium titanate thin films using a novel pyrrole based precursor 

      Acharya, Shinjita; Torgersen, Jan; Yongmin, Kim; Joonsuk, Park; Schindler, Peter; Dadlani, Anup; Winterkorn, Martin; Xu, Shicheng; Walch, Stephen; Usui, Takane; Schildknecht, Christian; Fritz, Prinz (Journal article; Peer reviewed, 2016)
      Barium oxide (BaO) is a critical component for a number of materials offering high dielectric constants, high proton conductivity as well as potential applicability in superconductivity. For these properties to keep pace ...
    • The interface of SiO2/ZnS films studied by high resolution X-ray photoluminescence 

      Acharya, Shinjita; Trejo, Orlando; Dadlani, Anup; Torgersen, Jan; Berto, Filippo; Prinz, Fritz (Journal article; Peer reviewed, 2018)
      Sharp interfaces in optoelectronic devices are key for proper band alignment. Despite its benefits as buffer layer, ZnS deposited via atomic layer deposition (ALD) renders intermixed interfaces to its substrate, which can ...