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Optical constants of CH3NH3PbCl3 (Methylammonium lead tribromide, MAPbCl3)
Brennan 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.


M. C. Brennan, C. L. McCleese, L. M. Loftus, J. Lipp, M. Febbraro, H. J. Hall, D. B. Turner, M. J. Carter, P. R. Stevenson, T. A. Grusenmeyer. Optically transparent lead halide perovskite polycrystalline ceramics, ACS Appl. Mater. Interfaces 16, 15084–15095 (2024) (Numerical data kindly provided by Michael Brennan)


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Methylammonium lead chloride, CH3NH3PbCl3 (MAPbCl3)

Methylammonium lead chloride (CH3NH3PbCl3) is a key perovskite material, noted for its use in optoelectronic devices such as photodetectors and light-emitting diodes (LEDs). This compound displays a cubic crystal structure, contributing to its unique optical properties, including a high refractive index and excellent photoluminescence. The presence of chloride tends to enhance the material's stability compared to its iodide counterpart, though it still contains lead, raising concerns about its environmental safety.

The optical characteristics of CH3NH3PbCl3 are significant for the development of light-based technologies, yet its commercial viability is tempered by issues related to durability and toxicity.

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