Available Projects


Novel low-cost and abundant absorber layers for thin film solar cells

There is overwhelming evidence that our increasing consumption of fossil fuels and the associated emission of carbon dioxide is leading to climate change. This has brought new urgency to the development of clean, renewable sources of energy. Photovoltaic devices that ...

Read More


Computationally assisted discovery of new solar absorbers

This project aims to discover new solar absorber materials to overcome the stability, sustainability and toxicity issues surrounding current hybrid perovskite materials such as methyl ammonium lead triiodide. We have recently synthesised and characterised AgBiI4 which shows optical properties suitable ...

Read More


Stability of Hybrid Perovskites for Tandem Solar Cells

Hybrid metal halide perovskites have emerged as an important new class of materials for photovoltaics. Their integration in tandem with other photovoltaic technologies such as silicon cells is highly desirable, allowing low-cost cells with efficiencies in excess of the Shockley-Queisser ...

Read More


Mesoscale model of charge transport in 2D Ruddlesden-Popper perovskite solar cells

3D organic-inorganic perovskites are promising since the power conversion efficiency (PCE) of solar cells made from these materials have gone from 3% to 21% in the last five years, so their PCE is comparable to that of silicon. However, their ...

Read More


The microstructure and electrical properties of grain boundaries in polycrystalline thin film photovoltaic devices

Defects and grain boundaries (GBs) are detrimental to the electrical performance of thin film photovoltaic devices. However, recent studies of thin film CdTe devices have shown that polycrystalline films outperform the single crystal PV counterparts. Thin film CdTe requires an ...

Read More


Long-range energy transfer in singlet fission materials

Despite their early promise and intrinsic sustainability (low embodied energy, efficient use of abundant and non-toxic materials), organic photovoltaics still struggle with efficiency, stability and cost. One of the problems is the lack of long-range (>>10nm) energy transfer, which imposes ...

Read More


Revised architectures for thin film solar cells

Today’s PV devices have some intrinsic limitations caused by the materials used – and this gives some opportunities. For example, p-type doping of CdTe solar cell absorber layers is difficult to achieve and limits the voltage achievable from the solar ...

Read More


Perovskite heterojunctions by vapour deposition

Metal halide perovskite materials have emerged over the past few years as a particularly promising PV technology, with power conversation efficiencies now exceeding 22%. Vapour deposition was the technique we used to develop the first efficient planar heterojunction perovskite solar ...

Read More


Pushing to 20% efficient solution grown CIGS thin film solar cells

Successful deposition of thin film solar cells, such as CdTe and CIGS, have historically been limited to devices grown using vacuum techniques, such as evaporation, sputtering and close space sublimation. These techniques allow close process control of the material properties, ...

Read More


Eliminating loss pathways in perovskite tandem solar cells by monitoring luminescence

Metal halide perovskites such as methylammonium lead iodide (MAPbI3) are generating tremendous excitement because of the rapid progress in performance of inexpensive perovskite solar cells. The power conversion efficiencies of perovskite solar cells with MAPbI3 and similar compositions (1.6 eV ...

Read More


Lifetime Energy Yield of Photovoltaic Devices

The lifetime energy yield of photovoltaic devices is a key parameter determining the viability as an energy generator but is one of the least understood issues in the community. The project is highly inter-disciplinary as requires linking the operating environments ...

Read More