In recent years, two-dimensional (2D) lead-free double perovskites have been attracting much attention because of their unique performance for photovoltaic solar cells andphotocatalysis. Nonetheless, how the thickness affects the photoelectric...
The halide double perovskite solid solution Cs2AgBiBr6−xClx has been investigated and found to exhibit a band gap that increases from 2.2 eV to 2.8 eV as the Cl− content increases, with an upward deviation from Vegard's law when x > 5.
Correction for ‘Cs2NaGaBr6: a new lead-free and direct band gap halide double perovskite’ by Yasir Saeed et al., RSC Adv., 2020, 10, 17444–17451, DOI: 10.1039/D0RA01764G.