Upconverting layer improves solar cell efficiency

Researchers based in Australia have found a way to convert more of the energy from the sun into useful energy, without massively increasing the cost of the process.

Currently photons with energy below a certain threshold are not picked up by most solar cells, but by combining two photons to make a single photon of  higher energy (upconversion) more of the incoming radiation can be utilized.

Schmidt, Lips and co-workers describe a hydrogenated amorphous silicon (a-Si:H) solar cell backed by  a layer of palladium porphyrin capable of upconverting photons, which are then able to be radiated back into the a-Si:H layer and converted to useful energy.

Read this HOT paper in full today:

Improving the light-harvesting of amorphous silicon solar cells with photochemical upconversion
Yuen Yap Cheng, Burkhard Fückel, Rowan W. MacQueen, Tony Khoury, Raphaël G. C. R. Clady, Tim F. Schulze, N. J. Ekins-Daukes, Maxwell J. Crossley, Bernd Stannowski, Klaus Lips and Timothy W. Schmidt
Energy Environ. Sci., 2012, DOI: 10.1039/C2EE21136J

Graphical abstract image

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One Response to “Upconverting layer improves solar cell efficiency”

  1. [...] Environmental Science article by Australian and German researchers which previously featured in this blog has now been highlighted by Printed Electronics World. The authors detail their work on improving [...]

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