Determination of the Complex Refractive Index, Optical Bandgap, and Urbach Energy of CH₃NH₃PbI₃ and FA₁₋ᵧCsᵧPb(I₁₋ₓBrₓ)₃ Perovskite Thin Films
The complex refractive indices of CH₃NH₃PbI₃ and FA₁₋ᵧCsᵧPb(I₁₋ₓBrₓ)₃ perovskite thin films are reported. These values are determined point-by-point using a combination of spectroscopic ellipsometry and transmittance measurements. The optical bandgaps and Urbach energies are calculated using a band fluctuation model.
Autor(es):A Tejada, S Braunger, L Kegelmann, S Albrecht, JA Töfflinger, L Korte, JA Guerra
Año: 2018
Título de la revista: Latin America Optics and Photonics Conference
Url: https://opg.optica.org/abstract.cfm?URI=LAOP-2018-Tu4A.34