What is it about?
By adding tin (Sn) to Cs3Bi2Br9 – a 'perovskite-inspired material' (aka. lead-free triple perovskite), we produce a mixed-valence Sn(II/Sn(IV) pair, which results in strong broadband absorption. This provides a novel pathway to enhancing the optical absorption of this emerging class of optoelectronic materials, and providing guidance on appropriate defect / dopant modelling in these materials.
Photo by Linh Pham on Unsplash
Why is it important?
This is important because it allows us to tune the optical properties of this emerging class of optoelectronic materials.
Read the Original
This page is a summary of: Enhanced visible light absorption in layered Cs3Bi2Br9 through mixed-valence Sn(ii)/Sn(iv) doping, Chemical Science, January 2021, Royal Society of Chemistry, DOI: 10.1039/d1sc03775g.
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