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Ultralow absorption coefficient and temperature dependence of radiative recombination of CH3NH3PbI3 perovskite from photoluminescence

Barugkin (Qiaoke), Chog; Cong, Jin Jin; Duong, The; Rahman, Shakir; Nguyen, Hieu; MacDonald, Daniel; White, Thomas; Catchpole, Kylie


Spectrally resolved photoluminescence is used to measure the band-to-band absorption coefficient α<inf>BB</inf>(ω) of organic-inorganic hybrid perovskite methylammonium lead iodide (CH<inf>3</inf>NH<inf>3</inf>PbI<inf>3</inf>) films from 675 to 1400 nm. Unlike other methods used to extract the absorption coefficient, photoluminescence is only affected by band-to-band absorption and is capable of detecting absorption events at very low energy levels. Absorption coefficients as low as 10-14 cm-1...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Journal of Physical Chemistry Letters
DOI: 10.1021/acs.jpclett.5b00044


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