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Chemistry in materials science and optics

TThe chemical composition of optical materials determines their optical properties. Fundamental properties include their refractive index, both real and complex parts, and more advanced properties include non-linear and optical active properties such as emission, Faraday and Kerr rotation, linear and circular dichroism, and magnetism. Overall, chemistry is essential for the design and synthesis of optical materials with desired properties, and ongoing research in this field continues to develop new materials with novel optical behaviors.
Transmittance and photoluminescence oscillations, perovskite crystal

Optical properties of organic/inorganic perovskite microcrystals through the characterization of Fabry–Pérot resonances

Dalton Transactions, 49, 12798 (2020)
F. Ramiro-Manzano, R. García-Aboal, R. Fenollosa, S. Biasi, I. Rodriguez, P. Atienzar and F. Meseguer

A precise knowledge of the optical properties, specifically the refractive index, of organic/inorganic perovskites, is essential for pushing forward the performance of the current photovoltaic devices that are being developed from these materials. Here we show a robust method for determining the real and the imaginary part of the refractive index of MAPbBr3 thin films and micrometer size single crystals with planar geometry. The simultaneous fit of both the optical transmittance and the photoluminescence spectra to theoretical models defines unambiguously the refractive index and the crystal thickness. Because the method relies on the optical resonance phenomenon occurring in these microstructures, it can be used to further develop optical microcavities from perovskites or from other optical materials.

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Fernando Ramiro Manzano, PhD 
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(+34) 96 387 9841
CTF-ITQ, UPV, Edificio 8B, Avda. Los Naranjos SN, 46360 - Valencia, Spain
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