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Energy Generation & Storage
Solar Cells

Solar cells are used to convert energy of light into electricity. Currently several different designs are being used however the main challenge is to make the technology more widely used which means improving the performance of the devices while keeping cost down.

Thin film solar cell

This example shows how the combination of EDS, EBSD and EBIC can be used to characterise Cu(In,Ga)Se2 absorber layers. The job to do is to understand why the photovoltaic performance of these solar cells are so high in spite of the large amount of grain boundaries in the material. General expectation is that grain boundaries have a negative effect on the photovoltaic performance. By using the EBSD and EBIC data it was possible to show that the type of grain boundary is important and it is not just a matter of density.

All oxide solar cell

The design is based on a structure of multiple oxide layers and the individual layer thicknesses have a significant effect on the photovoltaic performance of the device. This means that measuring and controlling the layer thicknesses is vital for ensuring the best performance. The example show how this job can be done in a non-destructive way by use of AZtec LayerProbe which is an approach for measuring thickness and compositions of multilayer structures.

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Solar cells from chalcopyrite-type thin films analysed by electron backscatter diffraction

Solar energy conversion is part of a long term strategy to ensure a stable and adequate supply of electrical power in the future. Photovoltaics are the only method of converting sunlight directly into electrical energy. The efficiency of a photovoltaic system is measured...

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Electron Beam Induced Current (EBIC)

Electron Beam Induced Current is a wellestablished analysis method of electrical activity in the SEM (and occasionally in the STEM). It provides a unique correlation of electrical and structural properties with very high spatial resolution.

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Characterisation of all-oxide solar cells using AZtec LayerProbe

Photovoltaic (PV) cells are an attractive option for generating low carbon renewable energy but traditional designs often include undesirable toxic compounds and must be manufactured under special conditions. The all-oxide approach to photovoltaic cells is thus very attractive...

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