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Scanning Probe Microscopy
Pioneering new methods to reveal local structure/function correlations with resolution below the optical diffraction limit.
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Solar Energy and Electronic Materials
Characterizing the optoelectronic properties of solution-processed materials such as hybrid perovskites, colloidal quantum dots, and organic semiconductors.
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Plasmonics and Nanophotonic Materials
Understanding and applying near-field coupling to achieve new functionality in metal and semiconductor nanostructures.
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Bio-inspired Materials and Sensing
Programming complex material assembly and stimulus-response functions using molecules and lessons from biology.
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Approaching the radiative efficiency limit with hybrid perovskite solar cells
Our recent 2018 Nature Photonics paper shows how surface passivation can allow record carrier lifetimes, and achieve over 97% of the theoretical quasi-Fermi-level splitting (voltage) measured in the archetypal perovskite, methylammonium lead triiodide. Congratulations to Dane and Ian for a great paper and fruitful collaboration. Nature Photonics volume 12, pages355–361 (2018) DOI: 10.1038/s41566-018-0154-z