Benjamin Williamson

Om

Nåværende Arbeid

Mitt nåværende arbeid innebærer å bruke kvantemekaniske simuleringsmetoder, som Density Functional Theory (DFT), ab initio molecular dynamics (MD) og selvkonsistent quasi-particle-GW-teori for å karakterisere og forutsi funksjonelle materialer.

Mitt hovedfokus er å belyse de ferroelektriske egenskapene til tetragonal tungsten bronzes innenfor HT2B-prosjektet innenfor FACET-gruppen ved Institutt for Materialteknologi. Andre prosjekter i gruppen inkluderer forståelse av rollen til ionisk diffusjon i faste elektrolytter for batteriapplikasjoner, samt oppdagelsen av nye materialer.

I tillegg til dette spenner mine interesser over en rekke funksjonelle materialer, inkludert transparent conductors, termoelektrikk, fotovoltaikk og fotokatalyse for vannsplitting og karbondioksidreduksjon.

Advisor: Prof. Tor Grande

PhD og Tidligere Arbeid

PhD-Supervisor: Prof. David O. Scanlon, University College London

Arbeidet mitt har sentrert seg rundt bulkelektronikken og defektegenskapene i halvledere for en rekke bruksområder, inkludert: n- og p-type transparent conductors, fotokatalyse, fotovoltaikk og termoelektrikk. Arbeidet mitt har involvert bruk av beregningssimuleringer for å fremme forståelsen av at rollen til defekter og dopstoffer spiller med hensyn til den elektroniske strukturen, samt å bruke prediktive verktøy for å finne neste generasjon funksjonelle materialer.

Publikasjoner

Google Scholar

Forskning

FACET

Tuneable Earth Abundant and Solid-State Electrolytes for Li-ion Batteries (TEASE)

The TEASE project aims to predict new Earth-abundant solid state electrolytes for safer energy dense Li-ion batteries using the latest computational simulation methods.

Publikasjoner

2026

Hårberg, Sofie Brandtzæg; Grendal, Ola Gjønnes; Williamson, Benjamin Albert Dobson; Strand, Henrik; Burghammer, Manfred; Hvidsten, Sverre. (2026) Spatial distribution of crystalline impurities in degraded high voltage XLPE cable screens using synchrotron wide-angle x-ray scattering. Journal of Physics: Energy
Vitenskapelig artikkel
Eggestad, Kristoffer; Selbach, Sverre Magnus; Williamson, Benjamin Albert Dobson; Meier, Dennis. (2026) Ferroic Materials and Phenomena at Ferroic Domain Walls. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling

2025

Zeiger, Caren Regine; Eggestad, Kristoffer; Walker, Julian Bradley; Einarsrud, Mari-Ann; Williamson, Benjamin Albert Dobson; Grande, Tor. (2025) Quantifying Emptiness: On the Size of A-Site Vacancies in Tetragonal Tungsten Bronzes. Chemistry of Materials
Vitenskapelig artikkel
Williamson, Benjamin Albert Dobson; Eggestad, Kristoffer; Selbach, Sverre Magnus. (2025) Pseudo-lithium vacancies in hydrogen rich Li<inf>3</inf>OCl. Journal of Materials Chemistry A
Vitenskapelig artikkel
Løndal, Nora Statle; Williamson, Benjamin Albert Dobson; Grendal, Ola Gjønnes; Walker, Julian Bradley; Einarsrud, Mari-Ann; Grande, Tor. (2025) Crystal Structure, Cation Occupation, and Phase Transitions in Ba4(LixNa1-x)2Nb10O30 Tetragonal Tungsten Bronzes. Inorganic Chemistry
Vitenskapelig artikkel
Gullbrekken, Øystein; Eggestad, Kristoffer; Tsoutsouva, Maria; Williamson, Benjamin Albert Dobson; Rettenwander, Daniel; Einarsrud, Mari-Ann. (2025) Phase Evolution and Thermodynamics of Cubic Li<inf>6.25</inf>Al<inf>0.25</inf>La<inf>3</inf>Zr<inf>2</inf>O<inf>12</inf> Studied by High-Temperature X-ray Diffraction. Inorganic Chemistry
Vitenskapelig artikkel

2024

Eggestad, Kristoffer; Selbach, Sverre Magnus; Williamson, Benjamin Albert Dobson. (2024) Doping implications of Li solid state electrolyte Li7La3Zr2O12. Journal of Materials Chemistry A
Vitenskapelig artikkel
Eggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Meier, Dennis; Selbach, Sverre Magnus. (2024) Mobile intrinsic point defects for conductive neutral domain walls in LiNbO3. Journal of Materials Chemistry C
Vitenskapelig artikkel
Zeiger, Caren Regine; Williamson, Benjamin Albert Dobson; Walker, Julian Bradley; Einarsrud, Mari-Ann; Grande, Tor. (2024) On the solubility of Bi in tetragonal tungsten bronzes. Journal of the European Ceramic Society
Vitenskapelig artikkel
Løndal, Nora Statle; Williamson, Benjamin Albert Dobson; Walker, Julian Bradley; Einarsrud, Mari-Ann; Grande, Tor. (2024) 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). Physical Chemistry, Chemical Physics - PCCP
Vitenskapelig artikkel

2023

Broberg, Danny; Bystrom, Kyle; Srivastava, Shivani; Dahliah, Diana; Williamson, Benjamin Albert Dobson; Weston, Leigh. (2023) High-throughput calculations of charged point defect properties with semi-local density functional theory—performance benchmarks for materials screening applications. npj Computational Materials
Vitenskapelig artikkel
Danmo, Frida Hemstad; Williamson, Benjamin Albert Dobson; Småbråten, Didrik Rene; Gaukås, Nikolai Helth; Østli, Elise Ramleth; Grande, Tor. (2023) Oxygen Absorption in Nanocrystalline h-RMnO3 (R = Y, Ho, Dy) and the Effect of Ti Donor Doping. Chemistry of Materials
Vitenskapelig artikkel
Don, Christopher H.; Shalvey, Thomas P.; Smiles, Matthew J.; Thomas, Luke; Phillips, Laurie J.; Hobson, Theodore D.C.. (2023) Multi-Phase Sputtered TiO2-Induced Current–Voltage Distortion in Sb2Se3 Solar Cells. Advanced Materials Interfaces
Vitenskapelig artikkel

2022

Walker, Julian; Marshall, Kenneth Paul; Beceiro, Jorge Salgado; Williamson, Benjamin; Løndal, Nora Statle; Castro-Garcia, Socorro. (2022) Mesophase Transitions in [(C2H5)4N][FeBrCl3] and [(CH3)4N][FeBrCl3] Ferroic Plastic Crystals. Chemistry of Materials
Vitenskapelig artikkel
Jackson, Adam; Parrett, Benjamin; Willis, Joe; Ganose, Alex; Leung, Winnie; Liu, Yuhan. (2022) Computational Prediction and Experimental Realization of Earth-Abundant Transparent Conducting Oxide Ga-Doped ZnSb<inf>2</inf>O<inf>6</inf>. ACS Energy Letters
Vitenskapelig artikkel
Limburn, Gregory; Davies, Daniel; Langridge, Neil; Malik, Zahida; Williamson, Benjamin; Scanlon, David. (2022) Investigation of factors affecting the stability of compounds formed by isovalent substitution in layered oxychalcogenides, leading to identification of Ba3Sc2O5Cu2Se2, Ba3Y2O5Cu2S2, Ba3Sc2O5Ag2Se2 and Ba3In2O5Ag2Se2. Journal of Materials Chemistry C
Vitenskapelig artikkel
Kanas, Nikola; Williamson, Benjamin; Steinbach, Frank; Hinterding, Richard; Einarsrud, Mari-Ann; Selbach, Sverre Magnus. (2022) Tuning the Thermoelectric Performance of CaMnO<inf>3</inf>-Based Ceramics by Controlled Exsolution and Microstructuring. ACS Applied Energy Materials
Vitenskapelig artikkel

2021

Fukumoto, Michitaka; Yasushi, Hirose; Williamson, Benjamin; Nakao, Shoichiro; Kimura, Koji; Hayashi, Koichi. (2021) Ligand Field-Induced Exotic Dopant for Infrared Transparent Electrode: W in Rutile SnO2. Advanced Functional Materials
Vitenskapelig artikkel
Spooner, Kieran; Ganose, Alex; Leung, Winnie; Buckeridge, John; Williamson, Benjamin; Palgrave, Robert. (2021) BaBi2O6: A Promising n-Type Thermoelectric Oxide with the PbSb2O6 Crystal Structure. Chemistry of Materials
Vitenskapelig artikkel
Hartley, Paul; Egdell, Russell G.; Zhang, Kelvin; Hohmann, Mareike; Piper, Louis; Morgan, David. (2021) Experimental and Theoretical Study of the Electronic Structures of Lanthanide Indium Perovskites LnInO3. Journal of Physical Chemistry C
Vitenskapelig artikkel

2020

Limburn, Gregory; Stephens, Matthew; Williamson, Benjamin; Iborra-Torres, Antonio; Scanlon, David; Hyett, Geoffrey. (2020) Photocatalytic, Structural and Optical Properties of Mixed Anion Solid solutions Ba3Sc2-xInxO5Cu2S2 and Ba3In2O5Cu2S2-ySey. Journal of Materials Chemistry A
Vitenskapelig artikkel

Tidsskriftspublikasjoner

Hårberg, Sofie Brandtzæg; Grendal, Ola Gjønnes; Williamson, Benjamin Albert Dobson; Strand, Henrik; Burghammer, Manfred; Hvidsten, Sverre. (2026) Spatial distribution of crystalline impurities in degraded high voltage XLPE cable screens using synchrotron wide-angle x-ray scattering. Journal of Physics: Energy
Vitenskapelig artikkel
Zeiger, Caren Regine; Eggestad, Kristoffer; Walker, Julian Bradley; Einarsrud, Mari-Ann; Williamson, Benjamin Albert Dobson; Grande, Tor. (2025) Quantifying Emptiness: On the Size of A-Site Vacancies in Tetragonal Tungsten Bronzes. Chemistry of Materials
Vitenskapelig artikkel
Williamson, Benjamin Albert Dobson; Eggestad, Kristoffer; Selbach, Sverre Magnus. (2025) Pseudo-lithium vacancies in hydrogen rich Li<inf>3</inf>OCl. Journal of Materials Chemistry A
Vitenskapelig artikkel
Løndal, Nora Statle; Williamson, Benjamin Albert Dobson; Grendal, Ola Gjønnes; Walker, Julian Bradley; Einarsrud, Mari-Ann; Grande, Tor. (2025) Crystal Structure, Cation Occupation, and Phase Transitions in Ba4(LixNa1-x)2Nb10O30 Tetragonal Tungsten Bronzes. Inorganic Chemistry
Vitenskapelig artikkel
Gullbrekken, Øystein; Eggestad, Kristoffer; Tsoutsouva, Maria; Williamson, Benjamin Albert Dobson; Rettenwander, Daniel; Einarsrud, Mari-Ann. (2025) Phase Evolution and Thermodynamics of Cubic Li<inf>6.25</inf>Al<inf>0.25</inf>La<inf>3</inf>Zr<inf>2</inf>O<inf>12</inf> Studied by High-Temperature X-ray Diffraction. Inorganic Chemistry
Vitenskapelig artikkel
Eggestad, Kristoffer; Selbach, Sverre Magnus; Williamson, Benjamin Albert Dobson. (2024) Doping implications of Li solid state electrolyte Li7La3Zr2O12. Journal of Materials Chemistry A
Vitenskapelig artikkel
Eggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Meier, Dennis; Selbach, Sverre Magnus. (2024) Mobile intrinsic point defects for conductive neutral domain walls in LiNbO3. Journal of Materials Chemistry C
Vitenskapelig artikkel
Zeiger, Caren Regine; Williamson, Benjamin Albert Dobson; Walker, Julian Bradley; Einarsrud, Mari-Ann; Grande, Tor. (2024) On the solubility of Bi in tetragonal tungsten bronzes. Journal of the European Ceramic Society
Vitenskapelig artikkel
Løndal, Nora Statle; Williamson, Benjamin Albert Dobson; Walker, Julian Bradley; Einarsrud, Mari-Ann; Grande, Tor. (2024) 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). Physical Chemistry, Chemical Physics - PCCP
Vitenskapelig artikkel
Broberg, Danny; Bystrom, Kyle; Srivastava, Shivani; Dahliah, Diana; Williamson, Benjamin Albert Dobson; Weston, Leigh. (2023) High-throughput calculations of charged point defect properties with semi-local density functional theory—performance benchmarks for materials screening applications. npj Computational Materials
Vitenskapelig artikkel
Danmo, Frida Hemstad; Williamson, Benjamin Albert Dobson; Småbråten, Didrik Rene; Gaukås, Nikolai Helth; Østli, Elise Ramleth; Grande, Tor. (2023) Oxygen Absorption in Nanocrystalline h-RMnO3 (R = Y, Ho, Dy) and the Effect of Ti Donor Doping. Chemistry of Materials
Vitenskapelig artikkel
Don, Christopher H.; Shalvey, Thomas P.; Smiles, Matthew J.; Thomas, Luke; Phillips, Laurie J.; Hobson, Theodore D.C.. (2023) Multi-Phase Sputtered TiO2-Induced Current–Voltage Distortion in Sb2Se3 Solar Cells. Advanced Materials Interfaces
Vitenskapelig artikkel
Walker, Julian; Marshall, Kenneth Paul; Beceiro, Jorge Salgado; Williamson, Benjamin; Løndal, Nora Statle; Castro-Garcia, Socorro. (2022) Mesophase Transitions in [(C2H5)4N][FeBrCl3] and [(CH3)4N][FeBrCl3] Ferroic Plastic Crystals. Chemistry of Materials
Vitenskapelig artikkel
Jackson, Adam; Parrett, Benjamin; Willis, Joe; Ganose, Alex; Leung, Winnie; Liu, Yuhan. (2022) Computational Prediction and Experimental Realization of Earth-Abundant Transparent Conducting Oxide Ga-Doped ZnSb<inf>2</inf>O<inf>6</inf>. ACS Energy Letters
Vitenskapelig artikkel
Limburn, Gregory; Davies, Daniel; Langridge, Neil; Malik, Zahida; Williamson, Benjamin; Scanlon, David. (2022) Investigation of factors affecting the stability of compounds formed by isovalent substitution in layered oxychalcogenides, leading to identification of Ba3Sc2O5Cu2Se2, Ba3Y2O5Cu2S2, Ba3Sc2O5Ag2Se2 and Ba3In2O5Ag2Se2. Journal of Materials Chemistry C
Vitenskapelig artikkel
Kanas, Nikola; Williamson, Benjamin; Steinbach, Frank; Hinterding, Richard; Einarsrud, Mari-Ann; Selbach, Sverre Magnus. (2022) Tuning the Thermoelectric Performance of CaMnO<inf>3</inf>-Based Ceramics by Controlled Exsolution and Microstructuring. ACS Applied Energy Materials
Vitenskapelig artikkel
Fukumoto, Michitaka; Yasushi, Hirose; Williamson, Benjamin; Nakao, Shoichiro; Kimura, Koji; Hayashi, Koichi. (2021) Ligand Field-Induced Exotic Dopant for Infrared Transparent Electrode: W in Rutile SnO2. Advanced Functional Materials
Vitenskapelig artikkel
Spooner, Kieran; Ganose, Alex; Leung, Winnie; Buckeridge, John; Williamson, Benjamin; Palgrave, Robert. (2021) BaBi2O6: A Promising n-Type Thermoelectric Oxide with the PbSb2O6 Crystal Structure. Chemistry of Materials
Vitenskapelig artikkel
Hartley, Paul; Egdell, Russell G.; Zhang, Kelvin; Hohmann, Mareike; Piper, Louis; Morgan, David. (2021) Experimental and Theoretical Study of the Electronic Structures of Lanthanide Indium Perovskites LnInO3. Journal of Physical Chemistry C
Vitenskapelig artikkel
Limburn, Gregory; Stephens, Matthew; Williamson, Benjamin; Iborra-Torres, Antonio; Scanlon, David; Hyett, Geoffrey. (2020) Photocatalytic, Structural and Optical Properties of Mixed Anion Solid solutions Ba3Sc2-xInxO5Cu2S2 and Ba3In2O5Cu2S2-ySey. Journal of Materials Chemistry A
Vitenskapelig artikkel

Rapport

Eggestad, Kristoffer; Selbach, Sverre Magnus; Williamson, Benjamin Albert Dobson; Meier, Dennis. (2026) Ferroic Materials and Phenomena at Ferroic Domain Walls. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Doktorgradsavhandling

Formidling