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arXiv · 2106.08108

Opto-thermal transport engineering in hybrid organic-inorganic lead halide perovskites metasurfaces

Saswata Halder·Amit Kessel·Noa Mazurski·Uriel Levy
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Abstract

Halide perovskites have recently gained widespread attention for their exceptional optoelectronic properties which have been illuminated by extensive spectroscopic investigations. In this article, nanophotonic surface-engineering using soft-lithography has been used to reproduce nanostructures with enhanced functionalities. A non-invasive optical technique based on Raman and photolumines-cence (PL) spectroscopy is employed to investigate the interactive effect of the thermal and optical behaviour in surface-patterned hybrid organic-inorganic halide perovskite thin films. The thermophys-ical properties of the engineered perovskite films are extracted from the softening of the representa-tive peak positions in the Raman and PL spectra of the samples which act as temperature markers. The investigation suggests a comparatively higher rise in the local temperature for the patterned thin films resulting from their enhanced absorption. Therefore, a cross-talk between the opto-thermal transport phenomena in imprinted perovskite thin films pertaining to both enhancing device properties along with maintaining device stability is established.

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Saswata Halder, Amit Kessel, Noa Mazurski, Uriel Levy. 2021-06-15. Opto-thermal transport engineering in hybrid organic-inorganic lead halide perovskites metasurfaces. https://doi.org/10.1021/acs.jpcc.0c10187

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