Professor Chris Groves' Outputs (47)

Decarbonising electrical grids using photovoltaics with enhanced capacity factors (2023)
Journal Article
Williams, C., Michaels, H., Crossland, A. F., Zhang, Z., Shirshova, N., MacKenzie, R. C. I., …Groves, C. (2023). Decarbonising electrical grids using photovoltaics with enhanced capacity factors. Energy & Environmental Science, 16(10), 4650-4659. https://doi.org/10.1039/d3ee00633f

Many scenarios for Net Zero anticipate substantial growth of Solar PV generation to satisfy 30% of our electricity needs. However, this scale of deployment introduces challenges as supply may not meet demand, thereby necessitating energy storage and... Read More about Decarbonising electrical grids using photovoltaics with enhanced capacity factors.

Modelling the effect of dipole ordering on charge-carrier mobility in organic semiconductors (2023)
Journal Article
Pope, T., Giret, Y., Fsadni, M., Docampo, P., Groves, C., & Penfold, T. J. (2023). Modelling the effect of dipole ordering on charge-carrier mobility in organic semiconductors. Organic Electronics, 115, Article 106760. https://doi.org/10.1016/j.orgel.2023.106760

The hopping mobility in organic semiconductors is strongly influenced by the correlated on-site noise — i.e. the dipole–dipole interaction between neighbouring molecules. In this paper, we use Kinetic Monte Carlo (KMC) to study the effect of dipole m... Read More about Modelling the effect of dipole ordering on charge-carrier mobility in organic semiconductors.

Towards Intelligently Designed Evolvable Processors (2022)
Journal Article
Jones, B. A., Chouard, J. L., Branco, B. C., Vissol-Gaudin, E. G., Pearson, C., Petty, M. C., Al Moubayed, N., Zeze, D. A., & Groves, C. (2022). Towards Intelligently Designed Evolvable Processors. Evolutionary Computation, 30(4), 479-501. https://doi.org/10.1162/evco_a_00309

Evolution-in-Materio is a computational paradigm in which an algorithm reconfigures a material’s properties to achieve a specific computational function. This paper addresses the question of how successful and well performing Evolution-in-Materio pro... Read More about Towards Intelligently Designed Evolvable Processors.

Single event burnout sensitivity of SiC and Si (2022)
Journal Article
Littlefair, M. T. M., Simdyankin, S., Turvey, S., Groves, C., & Horsfall, A. B. (2022). Single event burnout sensitivity of SiC and Si. Semiconductor Science and Technology, 37(6), Article 065013. https://doi.org/10.1088/1361-6641/ac668c

Exposure to ionizing radiation has the potential to catastrophically modify the operation, and destroy, electronic components in microseconds. The electrification of aircraft necessitates the need to use the most power dense and lowest loss semicondu... Read More about Single event burnout sensitivity of SiC and Si.

How does location determine the economic competitiveness of grid-scale Emerging PV? (2022)
Journal Article
Nieto-Díaz, B. A., Crossland, A. F., & Groves, C. (2022). How does location determine the economic competitiveness of grid-scale Emerging PV?. Energy Technology, 10(5), Article 2101012. https://doi.org/10.1002/ente.202101012

Emerging Photovoltaic (PV) devices with perovskite or organic absorber layers may play a substantial role in our energy future due to their potential low-cost manufacture and differing properties compared to established Silicon equivalents. However,... Read More about How does location determine the economic competitiveness of grid-scale Emerging PV?.

Differing Impacts of Blended Fullerene Acceptors on the Performance of Ternary Organic Solar Cells (2021)
Journal Article
Palacios-Gómez, D. A., Huerta Flores, A. M., MacKenzie, R. C., Pearson, C., Alanazi, F., Mendis, B. G., & Groves, C. (2021). Differing Impacts of Blended Fullerene Acceptors on the Performance of Ternary Organic Solar Cells. ACS Applied Energy Materials, 4(10), 10867-10876. https://doi.org/10.1021/acsaem.1c01833

Organic photovoltaic (OPV) devices offer the ability to tune the electronic and optical properties of the active layer by selection of a wide range of molecules; however, their power conversion efficiencies currently lag other competing photovoltaic... Read More about Differing Impacts of Blended Fullerene Acceptors on the Performance of Ternary Organic Solar Cells.

A levelized cost of energy approach to select and optimise emerging PV technologies: The relative impact of degradation, cost and initial efficiency (2021)
Journal Article
Nieto-Díaz, B. A., Crossland, A. F., & Groves, C. (2021). A levelized cost of energy approach to select and optimise emerging PV technologies: The relative impact of degradation, cost and initial efficiency. Applied Energy, 299, Article 117302. https://doi.org/10.1016/j.apenergy.2021.117302

A model of levelized cost of energy (LCOE) is presented which accounts for the significant ‘burn-in’ losses common in photovoltaic (PV) devices with organic (OPV) and perovskite (PVK) absorber layers. This model is used to quantify the relative impor... Read More about A levelized cost of energy approach to select and optimise emerging PV technologies: The relative impact of degradation, cost and initial efficiency.

Electrical behaviour and evolutionary computation in thin films of bovine brain microtubules (2021)
Journal Article
Vissol-Gaudin, E., Pearson, C., Groves, C., Zeze, D. A., Cantiello, H. F., Cantero, M. D. R., & Petty, M. C. (2021). Electrical behaviour and evolutionary computation in thin films of bovine brain microtubules. Scientific Reports, 11, Article 10776. https://doi.org/10.1038/s41598-021-90260-0

We report on the electrical behaviour of thin films of bovine brain microtubules (MTs). For samples in both their dried and hydrated states, the measured currents reveal a power law dependence on the applied DC voltage. We attribute this to the injec... Read More about Electrical behaviour and evolutionary computation in thin films of bovine brain microtubules.

Enhanced lifetime of Organic Photovoltaic diodes achieved by blending with PMMA: Impact of morphology and Donor:Acceptor combination (2020)
Journal Article
Nieto-Díaz, B. A., Pearson, C., Al-Busaidi, Z., Bowen, L., Petty, M. C., & Groves, C. (2021). Enhanced lifetime of Organic Photovoltaic diodes achieved by blending with PMMA: Impact of morphology and Donor:Acceptor combination. Solar Energy Materials and Solar Cells, 219, Article 110765. https://doi.org/10.1016/j.solmat.2020.110765

In order to realise the potential of organic photovoltaic devices (OPVs) to provide cheap, scalable access to renewable energy, it is necessary to improve their lifetime and cost of encapsulation. The aim of this work is to achieve these aims by blen... Read More about Enhanced lifetime of Organic Photovoltaic diodes achieved by blending with PMMA: Impact of morphology and Donor:Acceptor combination.

Assessment of Electricity Decarbonization Scenarios for New Zealand and Great Britain using a Plant Dispatch and Electrical Energy Storage Modelling Framework (2020)
Journal Article
Crossland, A., Scoles, K., Wang, A., Groves, C., & Sun, S. (2020). Assessment of Electricity Decarbonization Scenarios for New Zealand and Great Britain using a Plant Dispatch and Electrical Energy Storage Modelling Framework. Energies, 13(11), Article 2799. https://doi.org/10.3390/en13112799

This paper proposes a methodology to assess the impact of alternative electricity generation and energy storage scenarios for meeting electricity demand on a national level. The method combines real and synthetic electricity generation and demand dat... Read More about Assessment of Electricity Decarbonization Scenarios for New Zealand and Great Britain using a Plant Dispatch and Electrical Energy Storage Modelling Framework.

Efficient and Stable Solution-Processed Organic Light Emitting Transistors using a High-k Dielectric (2019)
Journal Article
Nam, S., Chaudhry, M. U., Tetzner, K., Pearson, C., Groves, C., Petty, M. C., Anthopoulos, T. D., & Bradley, D. D. (2019). Efficient and Stable Solution-Processed Organic Light Emitting Transistors using a High-k Dielectric. ACS Photonics, 6(12), 3159-3165. https://doi.org/10.1021/acsphotonics.9b01265

We report the development of highly efficient and stable solution-processed organic light emitting transistors (OLETs) that combine a polymer heterostructure with the transparent high-k dielectric poly(vinylidenefluoride0.62-trifluoroethylene0.31-chl... Read More about Efficient and Stable Solution-Processed Organic Light Emitting Transistors using a High-k Dielectric.

Low-Voltage Solution-Processed Hybrid Light-Emitting Transistors (2018)
Journal Article
Chaudhry, M. U., Tetzner, K., Lin, Y.-H., Nam, S., Pearson, C., Groves, C., Petty, M. C., Anthopoulos, T. D., & Bradley, D. D. (2018). Low-Voltage Solution-Processed Hybrid Light-Emitting Transistors. ACS Applied Materials and Interfaces, 10(22), 18445-18449. https://doi.org/10.1021/acsami.8b06031

We report the development of low operating voltages in inorganic–organic hybrid light-emitting transistors (HLETs) based on a solution-processed ZrOx gate dielectric and a hybrid multilayer channel consisting of the heterojunction In2O3/ZnO and the o... Read More about Low-Voltage Solution-Processed Hybrid Light-Emitting Transistors.

Simulating charge transport in organic semiconductors and devices: a review (2016)
Journal Article
Groves, C. (2017). Simulating charge transport in organic semiconductors and devices: a review. Reports on Progress in Physics, 80(2), Article 026502. https://doi.org/10.1088/1361-6633/80/2/026502

Charge transport simulation can be a valuable tool to better understand, optimise and design organic transistors (OTFTs), photovoltaics (OPVs), and light-emitting diodes (OLEDs). This review presents an overview of common charge transport and device... Read More about Simulating charge transport in organic semiconductors and devices: a review.

Enhanced Lifetime of organic photovoltaic diodes utilizing a ternary blend including an insulating polymer (2016)
Journal Article
AL-Busaidi, Z., Pearson, C., Groves, C., & Petty, M. (2016). Enhanced Lifetime of organic photovoltaic diodes utilizing a ternary blend including an insulating polymer. Solar Energy Materials and Solar Cells, 160, 101-106. https://doi.org/10.1016/j.solmat.2016.10.018

We report on the lifetime of unencapsulated organic photovoltaic diodes (OPVs) based on a ternary blend of poly(3-hexylthiophene) (P3HT), phenyl-C61-butyric acid methyl ester (PCBM) and a soft insulating polymer, poly(methyl methacrylate) (PMMA) as c... Read More about Enhanced Lifetime of organic photovoltaic diodes utilizing a ternary blend including an insulating polymer.

Evolution of Electronic Circuits using Carbon Nanotube Composites (2016)
Journal Article
Massey, M., Kotsialos, A., Volpati, D., Vissol-Gaudin, E., Pearson, C., Bowen, L., …Petty, M. (2016). Evolution of Electronic Circuits using Carbon Nanotube Composites. Scientific Reports, 6, Article 32197. https://doi.org/10.1038/srep32197

Evolution-in-materio concerns the computer controlled manipulation of material systems using external stimuli to train or evolve the material to perform a useful function. In this paper we demonstrate the evolution of a disordered composite material,... Read More about Evolution of Electronic Circuits using Carbon Nanotube Composites.

Relating Molecular Morphology to Charge Mobility in Semicrystalline Conjugated Polymers (2016)
Journal Article
Jones, M., Huang, D., Chakrabarti, B., & Groves, C. (2016). Relating Molecular Morphology to Charge Mobility in Semicrystalline Conjugated Polymers. Journal of Physical Chemistry C, 120(8), 4240-4250. https://doi.org/10.1021/acs.jpcc.5b11511

The molecular-level origins of the effects of annealing temperature and molecular weight on hole mobility in P3HT are elucidated using coarse-grained molecular dynamics, quantum chemical calculations, and kinetic Monte Carlo charge-transport simulati... Read More about Relating Molecular Morphology to Charge Mobility in Semicrystalline Conjugated Polymers.

Examining Charge Transport Networks in Organic Bulk Heterojunction Photovoltaic Diodes using 1/f Noise Spectroscopy (2015)
Journal Article
Kaku, K., Williams, A., Mendis, B., & Groves, C. (2015). Examining Charge Transport Networks in Organic Bulk Heterojunction Photovoltaic Diodes using 1/f Noise Spectroscopy. Journal of Materials Chemistry C Materials for optical and electronic devices, 3(23), 6077-6085. https://doi.org/10.1039/c5tc00348b

In this article we present 1/f noise spectroscopy measurements relating to charge transport networks in poly(3-hexylthiophene) (P3HT):phenyl-C61-butyric acid methyl ester (PCBM) space-charge limited diode (SCLD) and organic photovoltaic (OPV) devices... Read More about Examining Charge Transport Networks in Organic Bulk Heterojunction Photovoltaic Diodes using 1/f Noise Spectroscopy.

Are hot charge transfer states the primary cause of efficient free-charge generation in polymer:fullerene organic photovoltaic devices? A kinetic Monte Carlo study (2014)
Journal Article
Jones, M., Dyer, R., Clarke, N., & Groves, C. (2014). Are hot charge transfer states the primary cause of efficient free-charge generation in polymer:fullerene organic photovoltaic devices? A kinetic Monte Carlo study. Physical Chemistry Chemical Physics, 16(38), 20310-20320. https://doi.org/10.1039/c4cp01626b

Kinetic Monte Carlo simulations are used to examine the effect of high-energy, ‘hot’ delocalised charge transfer (HCT) states for donor:acceptor and mixed:aggregate blends, the latter relating to polymer:fullerene photovoltaic devices. Increased full... Read More about Are hot charge transfer states the primary cause of efficient free-charge generation in polymer:fullerene organic photovoltaic devices? A kinetic Monte Carlo study.

Characterisation of Charge Conduction Networks in Poly(3-hexylthiophene)/Polystyrene Blends using Noise Spectroscopy (2014)
Journal Article
Williams, A., Farrar, P., Gallant, A., Atkinson, D., & Groves, C. (2014). Characterisation of Charge Conduction Networks in Poly(3-hexylthiophene)/Polystyrene Blends using Noise Spectroscopy. Journal of Materials Chemistry C Materials for optical and electronic devices, 2(9), 1742-1748. https://doi.org/10.1039/c3tc31849d

1/f noise spectroscopy is used to investigate charge conduction networks within polymer blend space-charge-limited diodes (SCLDs) fabricated from regioregular poly(3-hexylthiophene) (P3HT) and either isotactic-polystyrene (i-PS) or amorphous-polystyr... Read More about Characterisation of Charge Conduction Networks in Poly(3-hexylthiophene)/Polystyrene Blends using Noise Spectroscopy.

Monte Carlo Simulation of Geminate Pair Recombination Dynamics in Organic Photovoltaic Devices: Multi-Exponential, Field-Dependent Kinetics and Its Interpretation (2014)
Journal Article
Jones, L., Chakrabarti, B., & Groves, C. (2014). Monte Carlo Simulation of Geminate Pair Recombination Dynamics in Organic Photovoltaic Devices: Multi-Exponential, Field-Dependent Kinetics and Its Interpretation. Journal of Physical Chemistry C, 118(1), 85-91. https://doi.org/10.1021/jp408063f

Monte Carlo simulations are used to examine charge-transfer (CT) state recombination dynamics considering the effects of energetic disorder and bulk heterojunction morphology. Strongly biexponential recombination kinetics were observed, in agreement... Read More about Monte Carlo Simulation of Geminate Pair Recombination Dynamics in Organic Photovoltaic Devices: Multi-Exponential, Field-Dependent Kinetics and Its Interpretation.