Refractive index database

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Optical constants of CH3NH3PbI3 (Methylammonium lead iodide, MAPbI3)
Leguy et al. 2015: Hydrated; n,k 0.249–0.427 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants


Hydrated single crystal CH3NH3PbI3.H2O; orientation unknown, hydrate phase grown on single crystal; room temperature; critical point model used for fit, 249 nm - 427 nm - fit not reliable for sub-bandgap region - see reference


A. M. A. Leguy, Y. Hu, M. Campoy-Quiles, M. I. Alonso, O. J. Weber, P. Azarhoosh, M. van Schilfgaarde, M. T. Weller, T Bein, J. Nelson, P. Docampo, and P. R. F. Barnes. Reversible hydration of CH3NH3PbI3 in films, single crystals, and solar cells, Chem. Matter. 27, 3397-3407 (2015)


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Methylammonium lead iodide, CH3NH3PbI3 (MAPbI3)

Methylammonium lead iodide (CH3NH3PbI3) is a prominent perovskite material used extensively in solar cell technology. It is renowned for its high photovoltaic efficiency due to its optimal band gap and strong light absorption capabilities. This compound typically forms a tetragonal crystalline structure that facilitates efficient charge transport, critical for its application in perovskite solar cells. Its optical properties, particularly its refractive index, are crucial for enhancing light-harvesting efficiency.

Despite its potential in renewable energy applications, CH3NH3PbI3 faces challenges related to environmental impact and stability, given its lead content and sensitivity to moisture and temperature.

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