All Outputs (48)

Deposition and characterisation of perovskite thin films (2021)
Thesis
Gregory, C. Deposition and characterisation of perovskite thin films. (Dissertation). University of Salford

The work presented in this thesis investigates the synthesis, depo- sition and characterisation of halide doped perovskite thin films. Films of methylammonium lead iodide CH3NH3PbI3 were doped with Cl and Br ions to investigate the intrinsic diffe... Read More about Deposition and characterisation of perovskite thin films.

Understanding nanomechanical and surface ellipsometry of optical F-doped SnO2 thin films by in-line APCVD (2020)
Journal Article
Afzaal, M., Yates, H., Al-Ahmed, A., Ul-Hamid, A., Salhi, B., & Ali, M. (2020). Understanding nanomechanical and surface ellipsometry of optical F-doped SnO2 thin films by in-line APCVD. Applied Physics A, 126, 840. https://doi.org/10.1007/s00339-020-04033-z

In this paper, a production-type chemical vapour deposition (CVD) is utilized to deposit fluorine doped tin oxide thin films of different thicknesses and dopant levels. Deposited films showed a preferred orientation along the (200) plane of a tetra... Read More about Understanding nanomechanical and surface ellipsometry of optical F-doped SnO2 thin films by in-line APCVD.

Flame assisted chemical vapour deposition of NiO hole transport layers for planar perovskite cells (2020)
Journal Article
Yates, H., Hodgkinson, J., Meroni, S., Richards, D., & Watson, T. (2020). Flame assisted chemical vapour deposition of NiO hole transport layers for planar perovskite cells. Surface and Coatings Technology, 385, 125423. https://doi.org/10.1016/j.surfcoat.2020.125423

Thin films of polycrystalline NiO were deposited by Flame Assisted Chemical Vapour Deposition, which is an ideal process for in-line, atmospheric pressure deposition of wide area coatings. This, along with the ability to use aqueous salts rather than... Read More about Flame assisted chemical vapour deposition of NiO hole transport layers for planar perovskite cells.

Flame assisted chemical vapour deposition NiO hole transport layers for mesoporous carbon perovskite cells (2019)
Journal Article
Yates, H., Meroni, M., Raptis, D., Hodgkinson, J., & Watson, T. (2019). Flame assisted chemical vapour deposition NiO hole transport layers for mesoporous carbon perovskite cells. Journal of Materials Chemistry C, 7(42), 13235-13242. https://doi.org/10.1039/C9TC03922H

Flame Assisted Chemical Vapour Deposition was utilised to directly deposit polycrystalline mesoporous NiO to enhance charge transport within carbon perovskite solar cells (C-PSC). This versatile technique is highly suited... Read More about Flame assisted chemical vapour deposition NiO hole transport layers for mesoporous carbon perovskite cells.

Improved FTO/NiOx interfaces for inverted planar triple cation perovskite solar cells (2019)
Journal Article
Afzaal, M., Yates, H., Walter, A., & Nicolay, S. (2019). Improved FTO/NiOx interfaces for inverted planar triple cation perovskite solar cells. IEEE Journal of Photovoltaics, 9(5), 1302-1308. https://doi.org/10.1109/JPHOTOV.2019.2927927

Front electrodes of fluorine doped tin oxide (FTO) thin films and hole transporting layers of nickel oxide thin films have been combined to fabricate 1.063 cm2 inverted planar solar cells with cesium-containing triple cation p... Read More about Improved FTO/NiOx interfaces for inverted planar triple cation perovskite solar cells.

Optically tuned and large-grained bromine doped CH3NH3PbI3 perovskite thin films via aerosol-assisted chemical vapour deposition (2018)
Journal Article
Basak, S., Afzaal, M., & Yates, H. (2019). Optically tuned and large-grained bromine doped CH3NH3PbI3 perovskite thin films via aerosol-assisted chemical vapour deposition. Materials Chemistry and Physics, 223, 157-163. https://doi.org/10.1016/j.matchemphys.2018.10.054

Herein, doping of methylammonium lead iodide perovskite thin films with bromine ions is successfully performed for the first time using the aerosol-assisted chemical vapour deposition process. Depending on the doping levels, photoluminescence spect... Read More about Optically tuned and large-grained bromine doped CH3NH3PbI3 perovskite thin films via aerosol-assisted chemical vapour deposition.

Roll to roll atmospheric pressure plasma enhanced CVD of titania as a step towards the realisation of large area perovskite solar cell technology (2018)
Journal Article
Hodgkinson, J., Yates, H., Walter, A., Sacchetto, D., Moon, S., & Nicolay, S. (2018). Roll to roll atmospheric pressure plasma enhanced CVD of titania as a step towards the realisation of large area perovskite solar cell technology. Journal of Materials Chemistry C, 6(8), 1988-1995. https://doi.org/10.1039/c8tc00110c

Atmospheric pressure plasma enhanced CVD (AP PECVD) systems have attracted considerable interest in recent years due to the significant benefits for large area, low cost substrates and low temperature operation. In this work we describe the use of... Read More about Roll to roll atmospheric pressure plasma enhanced CVD of titania as a step towards the realisation of large area perovskite solar cell technology.

Surface-related properties of perovskite CH3NH3PbI3 thin films by aerosol-assisted chemical vapour deposition (2017)
Journal Article
Afzaal, M., Salhi, B., Al-Ahmed, A., Yates, H., & Hakeem, A. (2017). Surface-related properties of perovskite CH3NH3PbI3 thin films by aerosol-assisted chemical vapour deposition. Journal of Materials Chemistry C, 5(33), 8366-8370. https://doi.org/10.1039/C7TC02968C

A modified three-step aerosol-assisted chemical vapour deposition process was used to grow dense and uniform CH3NH3PbI3 thin films directly on borosilicate glass. The resulting photoluminescence spectrum was blue shifted with respect to its bandgap.... Read More about Surface-related properties of perovskite CH3NH3PbI3 thin films by aerosol-assisted chemical vapour deposition.

Dual functionality anti-reflection and biocidal coatings (2017)
Journal Article
Yates, H., Sheel, P., Hodgkinson, J., Warwick, M., Elfakhri, S., & Foster, H. (2017). Dual functionality anti-reflection and biocidal coatings. Surface and Coatings Technology, 324, 201-207. https://doi.org/10.1016/j.surfcoat.2017.05.077

A thin film combination of anti-reflection (AR) and biocidal properties would be of particular interest to reduce the transfer of infection and improve readability of public high use touch screens. In this paper we describe the development of a dual... Read More about Dual functionality anti-reflection and biocidal coatings.

1 cm2 CH3NH3PbI3 mesoporous solar cells with 17.8% steady-state efficiency by tailoring front FTO electrodes (2017)
Journal Article
Afzaal, M., Yates, H., Walter, A., Nicolay, S., & Ballif, C. (2017). 1 cm2 CH3NH3PbI3 mesoporous solar cells with 17.8% steady-state efficiency by tailoring front FTO electrodes. Journal of Materials Chemistry C, 5(20), 4946-4950. https://doi.org/10.1039/c7tc01248a

In this article, we investigate the effects of atmospheric-pressure chemical vapour deposited fluorine doped tin oxide (FTO) thin films as front electrodes for the fabrication of mesoporous perovskite solar cells with an active area of 1 cm2 and co... Read More about 1 cm2 CH3NH3PbI3 mesoporous solar cells with 17.8% steady-state efficiency by tailoring front FTO electrodes.

Growth patterns and properties of aerosol-assisted chemical vapor deposition of CH3NH3PbI3 films in a single step (2017)
Journal Article
Yates, H., & Afzaal, M. (2017). Growth patterns and properties of aerosol-assisted chemical vapor deposition of CH3NH3PbI3 films in a single step. Surface and Coatings Technology, 321, 336-340. https://doi.org/10.1016/j.surfcoat.2017.05.011

In this work, we highlight growth patterns and properties of aerosol-assisted chemical vapor deposition of perovskite, CH3NH3PbI3 thin films. The substrates were distinctly covered with both perovskite and lead iodide thin films which we attribute to... Read More about Growth patterns and properties of aerosol-assisted chemical vapor deposition of CH3NH3PbI3 films in a single step.

Transparent conductive oxide films for high-performance dye-sensitized solar cells (2017)
Journal Article
high-performance dye-sensitized solar cells. IEEE Journal of Photovoltaics, 7(2), 518-524. https://doi.org/10.1109/JPHOTOV.2016.2641303

In this paper, atmospheric pressure chemical vapor deposition of fluorine-doped tin oxide (FTO) thin films of various thicknesses and dopant levels is reported. The deposited coatings are used to fabricate dye-sensitized solar cells, which exhibited... Read More about Transparent conductive oxide films for high-performance dye-sensitized solar cells.

Progression towards high efficiency perovskite solar cells via optimisation of the front electrode and blocking layer (2016)
Journal Article
Yates, H., Afzaal, M., Walter, A., Hodgkinson, J., Moon, S., Sacchetto, D., …Ballif, C. (2016). Progression towards high efficiency perovskite solar cells via optimisation of the front electrode and blocking layer. Journal of Materials Chemistry C, 4(47), 11269-11277. https://doi.org/10.1039/C6TC04647A

The effects of fluorine doped tin oxide (FTO) electrode, titanium dioxide (TiO2-x) blocking layer (BL) and perovskite (methyl ammonium lead triiodide) preparation on the overall properties of the photovoltaic cells have been studied. The FTO electro... Read More about Progression towards high efficiency perovskite solar cells via optimisation of the front electrode and blocking layer.

Translation effects in fluorine doped tin oxide thin film properties by atmospheric pressure chemical vapor deposition (2016)
Journal Article
Afzaal, M., Yates, H., & Hodgkinson, J. (2016). Translation effects in fluorine doped tin oxide thin film properties by atmospheric pressure chemical vapor deposition. Coatings, 6(4), 43. https://doi.org/10.3390/coatings6040043

In this work, the impact of translation rates in fluorine doped tin oxide (FTO) thin films using atmospheric pressure chemical vapour deposition (APCVD) were studied. We demonstrated that by adjusting the translation speeds of the susceptor, the grow... Read More about Translation effects in fluorine doped tin oxide thin film properties by atmospheric pressure chemical vapor deposition.

Optimised atmospheric pressure CVD of monoclinic VO2 thin films with picosecond phase transition (2016)
Journal Article
Gaskell, J., Afzaal, M., Sheel, D., Yates, H., Delfanazari, K., & Muskens, O. (2016). Optimised atmospheric pressure CVD of monoclinic VO2 thin films with picosecond phase transition. Surface and Coatings Technology, 287, 160-165. https://doi.org/10.1016/j.surfcoat.2015.12.090

Monoclinic vanadium oxide (VO2) thin films with low roughness values were deposited and optimised by atmospheric pressure chemical vapour deposition using vanadium tetrachloride (VCl4) and water (H2O). Smooth VO2 films with good transmittance propert... Read More about Optimised atmospheric pressure CVD of monoclinic VO2 thin films with picosecond phase transition.

APCVD of dual layer transparent conductive oxides for photovoltaic applications (2015)
Journal Article
Yates, H., Gaskell, J., Thomson, M., Sheel, D., Delaup, B., & Morales-Masis, M. (2015). APCVD of dual layer transparent conductive oxides for photovoltaic applications. Thin Solid Films, 590, 260-265. https://doi.org/10.1016/j.tsf.2015.08.014

We report the atmospheric pressure chemical vapour deposition (APCVD) of a dual layer transparent conductive oxide (TCO). This combines a fluorine doped tin oxide (FTO) base layer with a fluorine doped zinc oxide (FZO) top layer, where we seek to uti... Read More about APCVD of dual layer transparent conductive oxides for photovoltaic applications.

Enhanced optical performance of APCVD zinc oxide via post growth plasma treatment at atmospheric pressure (2015)
Journal Article
Hodgkinson, J., Yates, H., & Sheel, D. (2015). Enhanced optical performance of APCVD zinc oxide via post growth plasma treatment at atmospheric pressure. physica status solidi (c), 12(7), 1016-1021. https://doi.org/10.1002/pssc.201510011

The use of atmospheric pressure (AP) CVD to produce highly developed Transparent Conducting oxides (TCO) for thin film photovoltaic systems has significant potential to reduce manufacturing costs and increase the product scope via in-line process... Read More about Enhanced optical performance of APCVD zinc oxide via post growth plasma treatment at atmospheric pressure.

Durable high-performance anti-reflection coatings via atmospheric pressure processing (2015)
Journal Article
atmospheric pressure processing. physica status solidi (a), 212(7), 1544-1549. https://doi.org/10.1002/pssa.201532286

Anti-reflection layers are critical to the performance of many optical systems, including large area, cost sensitive products such as displays, architectural glazing, photovoltaics, and solar thermal collectors. The action of such layers is a prod... Read More about Durable high-performance anti-reflection coatings via atmospheric pressure processing.

High-performance tandem silicon solar cells on F: SnO<inf>2</inf> (2013)
Journal Article
Yates, H., Evans, P., Sheel, D., Nicolay, S., Ding, L., & Ballif, C. (2013). High-performance tandem silicon solar cells on F: SnO2. Surface and Coatings Technology, 230, 228-233. https://doi.org/10.1016/j.surfcoat.2013.05.029

High-performance transparent conducting oxides (TCOs) have significance for optimising PV performance. The efficiency of the resulting solar cells is dependent particularly on achieving high light scattering, low resistivity and low absorption (via l... Read More about High-performance tandem silicon solar cells on F: SnO<inf>2</inf>.

The influence of F-doping in SnO2 thin films (2013)
Journal Article
Yates, H., Evans, P., & Sheel, D. (2013). The influence of F-doping in SnO2 thin films. Physics Procedia, 46, 159-166. https://doi.org/10.1016/j.phpro.2013.07.062

Transparent conductive oxide (TCO) films are widely used in many consumer products. The properties of the TCO can critically affect the efficiency of the application. With this in mind the surface morphological, optical and electrical properties ha... Read More about The influence of F-doping in SnO2 thin films.