Proceedings of 6th International Conference on Hybrid and Organic Photovoltaics (HOPV14)
Publication date: 1st March 2014
Perovskite solar cells have reached efficiencies of over 15%. 1 Efficient perovskite-based solar cells can be converted into light emitting diodes (LEDs) by incorporating appropriate electron- and hole-transporting layers analogous to efficient organic light emitting diodes (OLEDs) thereby helping in carrier confinement and recombination. Multilayer perovskite-conjugated polymer devices can be fabricated taking advantage of the orthogonal solvents used in spin-coating the perovskite and the conjugated polymer layers. This conjugated polymer-perovskite hybrid LED emit across the spectrum from visible to near-infrared and the emission spectra of the hybrid LEDs can be tuned by controlling the device architecture. Emission from the hybrid LED provides information about the recombination zone and the mode of the device operation. Also, by taking advantage of the bandgap tunability recently demonstrated for perovskites2 and given the wide range of light emitting conjugated polymers, we can design a range of hybrid LEDs with the desired emission profiles by choosing the right combination among the available perovskite and light emitting conjugated polymers.
Perovskie-conjygate polymer hybrid LED
[1] Liu, M.; Johnston, M. B.; Snaith, H. J. Efficient Planar Heterojunction Perovskite Solar Cells by Vapour Deposition. Nature 2013, advance online publication [2] Noh, J. H.; Im, S. H.; Heo, J. H.; Mandal, T. N.; Seok, S., II.Chemical Management for Colorful, Efficient, and Stable Inorganic–Organic Hybrid Nanostructured Solar Cells Nano Lett. 2013, 13, 1764– 1769
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