Blar i NTNU Open på forfatter "Williamson, Benjamin Albert Dobson"
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The effect of cation size on structure and properties of Ba-based tetragonal tungsten bronzes Ba4M2Nb10O30 (M = Na, K or Rb) and Ba4M2Nb8Ti2O30 (M = Ca or Sr)†
Løndal, Nora Statle; Williamson, Benjamin Albert Dobson; Walker, Julian Bradley; Einarsrud, Mari-Ann; Grande, Tor (Peer reviewed; Journal article, 2024)The second largest family of oxide ferroelectrics, after perovskites, are the tetragonal tungsten bronzes (TTB) with the general formula A24A12C4B12B28O30. Cation disorder in TTBs is known to occur if the size difference ... -
High-throughput calculations of charged point defect properties with semi-local density functional theory—performance benchmarks for materials screening applications
Broberg, Danny; Bystrom, Kyle; Srivastava, Shivani; Dahliah, Diana; Williamson, Benjamin Albert Dobson; Weston, Leigh; Scanlon, David O.; Rignanese, Gian-Marco; Dwaraknath, Shyam; Varley, Joel; Persson, Kristin A.; Asta, Mark; Hautier, Geoffroy (Peer reviewed; Journal article, 2023)Calculations of point defect energetics with Density Functional Theory (DFT) can provide valuable insight into several optoelectronic, thermodynamic, and kinetic properties. These calculations commonly use methods ranging ... -
Multi-Phase Sputtered TiO<inf>2</inf>-Induced Current–Voltage Distortion in Sb<inf>2</inf>Se<inf>3</inf> Solar Cells
Don, Christopher; Shalvey, Thomas; Smiles, Matthew; Thomas, Luke; Phillips, Laurie; Hobson, Theodore; Finch, Harry; Jones, Leanne; Swallow, Jack; Fleck, Nicole; Markwell, Christopher; Thakur, Pardeep; Lee, Tien-Lin; Biswas, Deepnarayan; Bowen, Leon; Williamson, Benjamin Albert Dobson; Scanlon, David O.; Dhanak, Vinod; Durose, Vinod; Veal, Tim D; Major, Jonathan (Peer reviewed; Journal article, 2023)Despite the recent success of CdS/Sb2Se3 heterojunction devices, cadmium toxicity, parasitic absorption from the relatively narrow CdS band gap (2.4 eV) and multiple reports of inter-diffusion at the interface forming ... -
On the Solubility of Bi in Tetragonal Tungsten Bronzes
Zeiger, Caren Regine; Williamson, Benjamin Albert Dobson; Walker, Julian Bradley; Einarsrud, Mari-Ann; Grande, Tor (Peer reviewed; Journal article, 2024)Ferroelectric Pb5Nb10O30 (PN) tetragonal tungsten bronze (TTB) forms solid solutions that exhibit morphotropic phase boundaries (MPBs). Successful replacement of PN with TTBs containing Bi could advance lead-free TTB MPBs. ... -
Oxygen Absorption in Nanocrystalline h-RMnO<inf>3</inf> (R = Y, Ho, Dy) and the Effect of Ti Donor Doping
Danmo, Frida Hemstad; Williamson, Benjamin Albert Dobson; Småbråten, Didrik Rene; Gaukås, Nikolai Helth; Østli, Elise Ramleth; Grande, Tor; Glaum, Julia; Selbach, Sverre Magnus (Journal article; Peer reviewed, 2023)