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Personal profile

Research interests

Why not visit our group website:

Johnson Group Website

  • materials chemistry for energy harvesting, storage and conversion
  • precursor design
  • chemical vapour deposition (plasma, low pressure, atmospheric pressure and aerosol assisted)
  • atomic layer deposition (plasma assisted and thermal)
  • graphene science
  • nanoparticle synthesis

Thin film materials

Thin films have applications in optics, electronics, healthcare, magnets, mechanics and chemistry. Every piece of electronic or optical equipment needs thin films.

We make thin films by arranging conducting, semiconducting and insulating materials in specific ways. This allows electrons to flow through them in the way we want them to.

Producing these thin film materials is a major challenge. They can have exotic compositions and can range in thickness from fractions of a nanometer (monolayer) to several micrometers.

Molecular precursors

My group's research centres on development and synthesis of new molecules called molecular precursors. We use these to produce thin films of metals, oxides, chalcogenides and nitrides by two processes:

  • chemical vapour deposition (CVD)
  • atomic layer deposition (ALD)

Our aim is to develop new precursors which are highly volatile and non-toxic. Using CVD or ALD we can then use these precursors to grow thin films.

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Projects

Research Output

Structural and vibrational properties of α- and π-SnS polymorphs for photovoltaic applications

Johnson, A., Guc, M., Andrade-Arvizu, J., Ahmet, I. Y., Oliva, F., Placidi, M., Saucedo, E., Pérez-Rodríguez, A. & Izquierdo-Roca, V., 15 Jan 2020, In : Acta Materialia. 183, p. 1-10 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Aerosol-Assisted Chemical Vapor Deposition of ZnS from Thioureide Single Source Precursors

Sullivan, H., Parish, J., Thongchai, P., Kociok-Kohn, G., Hill, M. & Johnson, A., 18 Feb 2019, In : Inorganic Chemistry. 58, 4, p. 2784-2797 14 p.

Research output: Contribution to journalArticle

Open Access
File
3 Citations (Scopus)
48 Downloads (Pure)

Aerosol-assisted chemical vapour deposition of alpha-Fe2O3 thin-films for water-splitting

Surman, M., Hill, M., Johnson, A. & Eslava Fernandez, S., 27 Jun 2019.

Research output: Contribution to conferencePoster

Evaluation of AA-CVD deposited phase pure polymorphs of SnS for thin films solar cells

Ahmet, I., Guc, M., Sánchez, Y., Neuschitzer, M., Izquierdo-Roca, V., Saucedo, E. & Johnson, A., 16 May 2019, In : RSC Advances. 9, 26, p. 14899-14909 21 p.

Research output: Contribution to journalArticle

Open Access
9 Citations (Scopus)

Partial cation substitution reduces iodide ion transport in lead iodide perovskite solar cells

Ferdani, D., Pering, S., Ghosh, D., Kubiak, P., Walker, A., Lewis, S., Johnson, A., Baker, P., Islam, M. & Cameron, P., 15 May 2019, In : Energy & Environmental Science. 12, 7, p. 2264-2272 9 p.

Research output: Contribution to journalArticle

Open Access
22 Citations (Scopus)

Datasets

Data set for 'TiO2 photoanodes with exposed {0 1 0} facets grown by aerosol-assisted chemical vapor deposition of a titanium oxo/alkoxy cluster'

Regue Grino, M. (Creator), Sibby, S. (Creator), Ahmet, I. (Creator), Friedrich, D. (Creator), Abdi, F. (Creator), Johnson, A. (Creator) & Eslava, S. (Creator), University of Bath, 5 Aug 2019

Dataset

Data set for: Mo-doped TiO2 photoanodes using [Ti4Mo2O8(OEt)10]2 bimetallic oxo cages as a single source precursor

Regue Grino, M. (Creator), Armstrong, K. (Creator), Walsh, D. (Creator), Richards, E. (Creator), Johnson, A. (Creator) & Eslava Fernandez, S. (Creator), University of Bath, 19 Sep 2018

Dataset

Raw Data for Azetidinium Lead Iodide for Perovskite Solar Cells

Pering, S. (Creator), Kubiak, P. (Creator), Deng, W. (Creator), Niemann, R. (Creator), Brivio, F. (Creator), Ghosh, D. (Creator), Troughton, J. R. (Creator), Jeffrey, F. (Creator), Johnson, A. (Creator), Lewis, S. (Creator), Walker, A. (Creator), Watson, T. M. (Creator), Islam, S. (Creator), Raithby, P. (Creator) & Cameron, P. (Creator), University of Bath, 23 Jan 2018

Dataset

Dataset for Cobalt(I) olefin Complexes: Precursors for Metal-Organic Chemical Vapor Deposition of High Purity Cobalt Metal Thin Films

Johnson, A. (Creator), Hamilton, J. (Creator), Pugh, T. (Creator), Richards, S. (Data Collector) & Kingsley, A. J. (Data Collector), University of Bath, 27 Jun 2016

Dataset