I will show how designing materials from the atomic scale allows creating building blocks that, with tailored functionalities, unfold unprecedented energy manipulation at the nanoscale. I will show how programming low-dimensional materials such as quantum dots, quantum-well perovskites or quantum-dot-in-perovskite solids can be used to achieve more efficient light sensors, light sources, and solar cells. In particular, I will present the latest results that enabled the realization of flexible colloidal quantum dot solar cells with certified record power conversion efficiencies (PCE) above 12%. I will also present our recent progress in IR sensitized solar cells designed to harvest solar energy above silicon bandgap.<br/>Novel materials such as quantum-dot-in-perovskite open the door to the realization of quantum confined devices previously circumscribed to high-temperature epitaxy. I will present a field-emission photodiode that, based on this material, achieves high sensitivity in the short-wavelength infrared. I will also talk about our latest advances in quantum-well low-dimensional perovskite light-emitting diodes, which led us to achieve a record external quantum efficiency of 14% with high luminance by funnelling energy at the nanoscale.

Solution-processed nanomaterials for efficient optoelectronic devices

254th National Meeting (2017)

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