Refractive index database

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Optical constants of CH3NH3PbBr3 (Methylammonium lead tribromide, MAPbBr3)
McCleese et al. 2024: n,k 0.200–2.50 µm

Wavelength: µm

Complex refractive index (n+ik)[ i ]

n   k   LogX   LogY   eV

Derived optical constants


Crystal orientation: <100>; Solution-grown single crystal; Room temperature.


C. L. McCleese, M. C. Brennan, N. Episcopo, L. Sun, N. Hong, C. V. Ramana, T. A. Grusenmeyer, P. R. Stevenson. CH3NH3PbBr3 for optimized perovskite solar cell active layer absorptance. Adv. Photonics Res. 2400019 (2024) (Numerical data kindly provided by Michael Brennan)


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Methylammonium lead bromide, CH3NH3PbBr3 (MAPbBr3)

Methylammonium lead bromide (CH3NH3PbBr3) is a hybrid organic-inorganic perovskite material noted for its outstanding optical properties and high efficiency in photovoltaic applications. This compound forms a crystalline structure that is effective in light absorption and electron-hole separation, making it highly advantageous for use in solar cells. Its refractive index and other optical characteristics are of particular interest for optical applications, including photovoltaic devices and light-emitting diodes (LEDs).

While CH3NH3PbBr3 shows great promise in advanced technological applications, it poses environmental and health risks due to its lead content. Additionally, its stability under environmental conditions remains a subject of extensive research, aiming to enhance its durability and safety for commercial use.

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