Benjamin Albert Dobson Williamson

Om

Jeg er en vitenskapelig forsker ved Norges teknisk-naturvitenskapelige universitet (NTNU) i Trondheim (Norge), og arbeider i forskningsgruppen for funksjonelle materialer og materialkjemi (FACET). Mitt tidligere doktorgrads- og postdoktorarbeid ble utført ved University College London (UCL). Arbeidet mitt har omfattet simulering av bulk- og defektegenskaper i halvledere for et bredt spekter av bruksområder, blant annet n- og p-type transparente conductors, fotokatalyse og termoelektriske materialer. Hovedinteressene mine ligger i å bestemme og forutsi nye materialer for ulike halvlederapplikasjoner, samt å forstå forbedringene og begrensningene som defekter og dopanter medfører. Det nåværende arbeidet mitt er hovedsakelig rettet mot å forstå grunnleggende mekanismer, begrensninger og defektkjemi i oppladbare batterimaterialer, i tillegg til å utvikle innsikt i oxide-ion conductor, fotokatalyse og ferroelektriske materialer.

PhD Studenter:
Hedda Skatter

Karriere og utdanning:

2025 - Nå: Independent Senior Researcher, NTNU
2019 - 2025: Scientific Researcher, NTNU (Advisors: Sverre M. Selbach, and Tor Grande)
2018 - 2019: Postdoctoral Research Associate, UCL, (Advisor: David O. Scanlon)
2014 - 2018: MPhil/PhD, UCL, (Supervisor: David O. Scanlon)
2010 - 2014: MSci, Chemistry, UCL

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

Finnseth, Øyvind; Brzozowski, Damian; Mathisen, Anders Christian; Brinkman, Stefanie Suzanne; Tan, Xin Liang; Göhler, Fabian; Williamson, Benjamin; Eggestad, Kristoffer; Huang, Meng-Jie; Buck, Jens. (2026) Electronic structure and resonant circular dichroism of La0.7Sr0.3MnO3 from soft x-ray angle-resolved photoemission. Physical review B (PRB)
Vitenskapelig artikkel
Eggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Selbach, Sverre M.. (2026) Domain walls and defects in ferroelectric inorganic halide perovskites CsGeX3 (X = Cl, Br, I). PHYSICAL REVIEW MATERIALS
Vitenskapelig artikkel
Skogvoll, Ida Cathrine; Williamson, Benjamin Albert Dobson; Selbach, Sverre M.. (2026) Local indirect magnetoelectric coupling at twin walls in CaMnO3. Physical review B (PRB)
Vitenskapelig artikkel
Eggestad, Kristoffer; Skogvoll, Ida Cathrine; Gullbrekken, Øystein; Williamson, Benjamin Albert Dobson; Selbach, Sverre M.. (2026) Finite-temperature ferroelectric phase transitions from machine-learned force fields. PHYSICAL REVIEW MATERIALS
Vitenskapelig artikkel
Hårberg, Sofie Brandtzæg; Grendal, Ola Gjønnes; Williamson, Benjamin Albert Dobson; Strand, Henrik; Burghammer, Manfred; Hvidsten, Sverre; Einarsrud, Mari-Ann. (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
Doktoravhandling

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; Selbach, Sverre Magnus. (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; Scanlon, David O.; Rignanese, Gian-Marco; Dwaraknath, Shyam; Varley, Joel. (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; Glaum, Julia; Selbach, Sverre Magnus. (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.; Finch, Harry; Jones, Leanne A.H.; Swallow, Jack E.N.; Fleck, Nicole. (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; Andújar, Manuel Sánchez; Selbach, Sverre Magnus; Chernyshov, Dmitry; Einarsrud, Mari-Ann. (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; Williamson, Benjamin; Kim, Timur K.; Hoesch, Moritz; Veiga, Larissa. (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; Hyett, Geoffrey. (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; Feldhoff, Armin; Wiik, Kjell. (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; Sugisawa, Yuki; Sekiba, Daiichiro; Scanlon, David; Hasegawa, Tetsuya. (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; Scanlon, David. (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; Scanlon, David; Williamson, Benjamin; Regoutz, Anna. (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

Finnseth, Øyvind; Brzozowski, Damian; Mathisen, Anders Christian; Brinkman, Stefanie Suzanne; Tan, Xin Liang; Göhler, Fabian; Williamson, Benjamin; Eggestad, Kristoffer; Huang, Meng-Jie; Buck, Jens. (2026) Electronic structure and resonant circular dichroism of La0.7Sr0.3MnO3 from soft x-ray angle-resolved photoemission. Physical review B (PRB)
Vitenskapelig artikkel
Eggestad, Kristoffer; Williamson, Benjamin Albert Dobson; Selbach, Sverre M.. (2026) Domain walls and defects in ferroelectric inorganic halide perovskites CsGeX3 (X = Cl, Br, I). PHYSICAL REVIEW MATERIALS
Vitenskapelig artikkel
Skogvoll, Ida Cathrine; Williamson, Benjamin Albert Dobson; Selbach, Sverre M.. (2026) Local indirect magnetoelectric coupling at twin walls in CaMnO3. Physical review B (PRB)
Vitenskapelig artikkel
Eggestad, Kristoffer; Skogvoll, Ida Cathrine; Gullbrekken, Øystein; Williamson, Benjamin Albert Dobson; Selbach, Sverre M.. (2026) Finite-temperature ferroelectric phase transitions from machine-learned force fields. PHYSICAL REVIEW MATERIALS
Vitenskapelig artikkel
Hårberg, Sofie Brandtzæg; Grendal, Ola Gjønnes; Williamson, Benjamin Albert Dobson; Strand, Henrik; Burghammer, Manfred; Hvidsten, Sverre; Einarsrud, Mari-Ann. (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. (2024) Doping implications of Li solid state electrolyte Li7La3Zr2O12. Journal of Materials Chemistry A
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
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
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
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
Walker, Julian; Marshall, Kenneth Paul; Beceiro, Jorge Salgado; Williamson, Benjamin; Løndal, Nora Statle; Castro-Garcia, Socorro; Andújar, Manuel Sánchez; Selbach, Sverre Magnus; Chernyshov, Dmitry; Einarsrud, Mari-Ann. (2022) Mesophase Transitions in [(C2H5)4N][FeBrCl3] and [(CH3)4N][FeBrCl3] Ferroic Plastic Crystals. Chemistry of Materials
Vitenskapelig artikkel
Broberg, Danny; Bystrom, Kyle; Srivastava, Shivani; Dahliah, Diana; Williamson, Benjamin Albert Dobson; Weston, Leigh; Scanlon, David O.; Rignanese, Gian-Marco; Dwaraknath, Shyam; Varley, Joel. (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
Fukumoto, Michitaka; Yasushi, Hirose; Williamson, Benjamin; Nakao, Shoichiro; Kimura, Koji; Hayashi, Koichi; Sugisawa, Yuki; Sekiba, Daiichiro; Scanlon, David; Hasegawa, Tetsuya. (2021) Ligand Field-Induced Exotic Dopant for Infrared Transparent Electrode: W in Rutile SnO2. Advanced Functional Materials
Vitenskapelig artikkel
Jackson, Adam; Parrett, Benjamin; Willis, Joe; Ganose, Alex; Leung, Winnie; Liu, Yuhan; Williamson, Benjamin; Kim, Timur K.; Hoesch, Moritz; Veiga, Larissa. (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
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
Danmo, Frida Hemstad; Williamson, Benjamin Albert Dobson; Småbråten, Didrik Rene; Gaukås, Nikolai Helth; Østli, Elise Ramleth; Grande, Tor; Glaum, Julia; Selbach, Sverre Magnus. (2023) Oxygen Absorption in Nanocrystalline h-RMnO3 (R = Y, Ho, Dy) and the Effect of Ti Donor Doping. Chemistry of Materials
Vitenskapelig artikkel
Spooner, Kieran; Ganose, Alex; Leung, Winnie; Buckeridge, John; Williamson, Benjamin; Palgrave, Robert; Scanlon, David. (2021) BaBi2O6: A Promising n-Type Thermoelectric Oxide with the PbSb2O6 Crystal Structure. Chemistry of Materials
Vitenskapelig artikkel
Don, Christopher H.; Shalvey, Thomas P.; Smiles, Matthew J.; Thomas, Luke; Phillips, Laurie J.; Hobson, Theodore D.C.; Finch, Harry; Jones, Leanne A.H.; Swallow, Jack E.N.; Fleck, Nicole. (2023) Multi-Phase Sputtered TiO2-Induced Current–Voltage Distortion in Sb2Se3 Solar Cells. Advanced Materials Interfaces
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
Limburn, Gregory; Davies, Daniel; Langridge, Neil; Malik, Zahida; Williamson, Benjamin; Scanlon, David; Hyett, Geoffrey. (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; Feldhoff, Armin; Wiik, Kjell. (2022) Tuning the Thermoelectric Performance of CaMnO<inf>3</inf>-Based Ceramics by Controlled Exsolution and Microstructuring. ACS Applied Energy Materials
Vitenskapelig artikkel
Gullbrekken, Øystein; Eggestad, Kristoffer; Tsoutsouva, Maria; Williamson, Benjamin Albert Dobson; Rettenwander, Daniel; Einarsrud, Mari-Ann; Selbach, Sverre Magnus. (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
Hartley, Paul; Egdell, Russell G.; Zhang, Kelvin; Hohmann, Mareike; Piper, Louis; Morgan, David; Scanlon, David; Williamson, Benjamin; Regoutz, Anna. (2021) Experimental and Theoretical Study of the Electronic Structures of Lanthanide Indium Perovskites LnInO3. Journal of Physical Chemistry C
Vitenskapelig artikkel

Studentoppgave eller avhandling

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

Formidling