G. Mincuzzi, M. Schulz-Ruhtenberg, L. Vesce, A. Reale, A. Di Carlo, A. Gillner and T. M. Brown Laser processing of TiO2 films for dye solar cells: a thermal, sintering, throughput and embodied energy investigation Progress in Photovoltaics: Research and Applications 22
We have analysed and optimised laser sintering of nc-TiO2 layers for dye solar cells (best cell efficiency 7%) showing that large areas can be processed uniformly. The time required to sinter 1m2 of nc-TiO2 was found to decrease hyperbolically with laser output power. The embodied energy of the sintering process via efficient lasers was found to be competitive with conventional oven/furnaces. We outline the features required from a laser system to carry out an industrially applicable process with competitive throughput.
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