Personal profile
Research interests
James's research is in the development of ferroelectric composites for sensing, piezoelectric energy harvesting and energy storage applications. This includes:
- Understanding the interaction between constituent phases on the inherent properties of the active phase using a combination of numerical modelling and experimental techniques
- Tuning effective properties of materials depending on specific application and environment
- Developing advanced fabrication methods, primarily of porous ferroelectric ceramic matrices, to produce composite structures that maximise performance
Willing to supervise doctoral students
Interested in supervising PhD students in the following areas:
- Functional ceramics
- Piezo- and ferroelectric materials
- Energy harvesting
- Materials for sensors
- Dielectric materials
- Porous materials
Education/Academic qualification
Mechanical Engineering, Doctor of Philosophy, Composite ferroelectric materials for energy harvesting and storage applications, University of Bath
Materials Science and Engineering, Bachelor of Science, University of Manchester
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Collaborations and top research areas from the last five years
Projects
- 12 Finished
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POLARIS - 'Production Optimisation and Large-Scale Data Analysis for Robust Industrial Systems'
Dhokia, V. (PI) & Roscow, J. (CoI)
Innovate UK, Innovate UK Business Connect
1/04/25 → 31/03/26
Project: Central government, health and local authorities
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EPSRC IAA - Low cost, high performance transducers for SONAR
Roscow, J. (PI) & Vo, N. (Researcher)
Engineering and Physical Sciences Research Council
1/04/25 → 31/03/26
Project: Research council
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Advanced characterisation of phase transformations in PMN-PMS-PZT pyroelectric ceramics using synchrotron X-ray diffraction
Lunt, A. (PI), Wang, Q. (CoI), Bowen, C. (CoI) & Roscow, J. (CoI)
22/11/24 → 24/11/24
Project: Research-related funding
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Investigation into the effect of structured porosity on ageing and polarization-switching in BiFeO3- BaTiO3 ceramics
Roscow, J. (PI) & Hall, D. (CoI)
1/06/23 → 31/03/24
Project: Research-related funding
Research output
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High freeze-casting cooling rates enhance the piezoelectric responses and reproducibility of porous lead zirconate titanate for sensing and energy harvesting
Vo-Bui, N. A., Khansur, N. H., Webber, K. G., Bowen, C. & Roscow, J., 20 Mar 2026, In: APL Electronic Devices. 2, 1Research output: Contribution to journal › Article › peer-review
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Numerical modelling framework for studying poling effects in architectured piezoelectric structures
Selicani, G., Insigna, A., Bjørnetun Haugen, A. & Roscow, J., 1 May 2026, In: Acta Materialia. 309, 122094.Research output: Contribution to journal › Article › peer-review
Open Access -
A phase field model for cold sintering of barium titanate
Singh, K., Leronni, A., Bowen, C. R. & Roscow, J., 30 Nov 2025, In: Journal of the European Ceramic Society. 45, 14, 117534.Research output: Contribution to journal › Article › peer-review
Open Access1 Link opens in a new tab Citation (SciVal) -
Enhanced piezoelectric properties of additively manufactured BCZT with an oriented ceramic lamellar structure formed via vat photopolymerization
Zhao, L., Zhang, Y., Yan, M., Li, J., Xiong, X., Roscow, J., Zhang, D. & Bowen, C., 28 Feb 2025, In: Journal of the European Ceramic Society. 45, 2, 116934.Research output: Contribution to journal › Article › peer-review
Open AccessFile6 Link opens in a new tab Citations (SciVal)9 Downloads (Pure) -
Ferroelectric-enhanced batteries for rapid charging and improved long-term performance
Wang, Q., Grady, Z., Bowen, C. & Roscow, J., 31 May 2025, In: Journal of Materiomics. 11, 3, 100912.Research output: Contribution to journal › Review article › peer-review
Open Access7 Link opens in a new tab Citations (SciVal)
Datasets
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Dataset for "High freeze-casting cooling rates enhance the piezoelectric responses and reproducibility of porous lead zirconate titanate for sensing and energy harvesting"
Vo-Bui, N. (Creator), Khansur, N. (Creator), Webber, K. (Creator), Bowen, C. (Creator) & Roscow, J. (Creator), University of Bath, 20 Mar 2026
DOI: 10.15125/BATH-01625
Dataset
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Dataset for modelling studies presented in 'Ultra-high discharged energy density capacitor using high aspect ratio Na0.5Bi0.5TiO3 nanofibers'
Roscow, J. (Creator), University of Bath, 2017
DOI: 10.15125/BATH-00453
Dataset
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Dataset for 'Breakdown in the case for materials with giant permittivity?'
Roscow, J. (Creator) & Bowen, C. (Creator), University of Bath, 2017
DOI: 10.15125/BATH-00454
Dataset
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Dataset for "Understanding the role of aligned porosity on the intrinsic and extrinsic contributions to the dielectric permittivity of freeze-cast ferroelectrics"
Vo-Bui, N. (Creator), Khanbareh, H. (Creator), Bowen, C. (Creator) & Roscow, J. (Creator), University of Bath, 22 Dec 2025
DOI: 10.15125/BATH-01629
Dataset
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Dataset for 'Manufacture and characterization of porous ferroelectrics for piezoelectric energy harvesting applications'
Roscow, J. (Creator), Taylor, J. (Creator) & Bowen, C. (Creator), University of Bath, 2017
DOI: 10.15125/BATH-00451
Dataset
Thesis
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Composite ferroelectric materials for energy harvesting and storage applications
Roscow, J. (Author), Bowen, C. (Supervisor) & Taylor, J. (Supervisor), 31 Jan 2018Student thesis: Doctoral Thesis › PhD
File
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University of Manchester
Roscow, J. (Visiting lecturer)
16 Jan 2026Activity: Visiting an external academic institution › Visiting lecturer
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Opponent for PhD defence
Roscow, J. (Examiner)
4 Mar 2026Activity: External examination and supervision › External examination
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University of Oulu
Roscow, J. (Visiting lecturer)
3 Mar 2026Activity: Visiting an external academic institution › Visiting lecturer