Proceedings of nanoGe Fall Meeting 2018 (NFM18)
DOI: https://doi.org/10.29363/nanoge.nfm.2018.163
Publication date: 6th July 2018
Our constantly increasing society’s need for energy has triggered a pressing need for the development of new materials for renewable sources. Concerning materials for energy harvesting, the most promising approaches for high-performance and low-cost photovoltaics rely in inhomogeneous compounds, such as perovskites and polycrystalline thin films (e.g. CIGS and CdTe). Thus, resolving their electrical and optical behavior at the nanoscale is imperative to advance their understanding. In this talk, I will share our scientific findings to image and quantify the local voltage response of nano- and mesoscale inhomogeneities in perovskites [1,2], CIGS [3], and CdTe through a variant of KPFM and NSOM [4-6]. By submitting the samples to illumination and humidity treatments under controlled conditions, we map the dynamic physical behavior of MAPI and triple-cation perovskites.
References:
[1] J. M. Howard et al. J. Phys Chem Letters, in press (2018)
[2] J. L. Garrett et al. Nano Letters 17, 2554 (2017).
[3] E. M. Tennyson et al. ACS Energy Letters 1, 899 (2016).
[4] E. M. Tennyson et al. ACS Energy Letters, 2, 2761 (2017). Invited Review
[5] E. M. Tennyson et al. ACS Energy Letters 2, 1825 (2017). Invited Perspective
[6] E. M. Tennyson et al. Advanced Energy Materials 5, 1501142 (2015).
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