[1] A H Slavney, T Hu, A M Lindenberg et al. A bismuth-halide double perovskite with long carrier recombination lifetime for photovoltaic applications. J Am Chem Soc, 7, 2138(2016).
[2] C Wu, Q Zhang, Y Liu et al. The dawn of lead-free perovskite solar cell: Highly stable double perovskite Cs2AgBiBr6 film. Adv Sci, 5, 1700759(2018).
[3] B Wang, N Li, X F Wang et al. Chlorophyll derivative-sensitized TiO2 electron transport layer for record efficiency of Cs2AgBiBr6 double perovskite solar cells. J Am Chem Soc, 143, 2207(2021).
[4] M Keshavarz, E Debroye, J Hofkens et al. Tuning the structural and optoelectronic properties of Cs2AgBiBr6 double-perovskite single crystals through alkali-metal substitution. Adv Mater, 32, 2001878(2020).
[5] Z Zhang, C Wu, D Wang et al. Improvement of Cs2AgBiBr6 double perovskite solar cell by rubidium doping. Org Electron, 74, 204(2019).
[6] M K Jana, S M Janke, D B Mitzi et al. Direct-bandgap 2D silver-bismuth iodide double perovskite: The structure-directing influence of an oligothiophene spacer cation. J Am Chem Soc, 141, 7955(2019).
[7] S E Creutz, E N Crites, D R Gamelin et al. Colloidal nanocrystals of lead-free double-perovskite (elpasolite) semiconductors: Synthesis and anion exchange to access new materials. Nano Lett, 18, 1118(2018).
[8] C Zhang, L Gao, T Ma et al. Design of a novel and highly stable lead-free Cs2NaBiI6 double perovskite for photovoltaic application. Sustain Energy Fuels, 2, 2419(2018).
[9] A H Slavney, L Leppert, H I Karunadasa et al. Defect-induced band-edge reconstruction of a bismuth-halide double perovskite for visible-light absorption. J Am Chem Soc, 139, 5015(2017).
[10] K P Lindquist, S A Mack, H I Karunadasa et al. Tuning the bandgap of Cs2AgBiBr6 through dilute tin alloying. Chem Sci, 10, 10620(2019).
[11] K Du, W Meng, D B Mitzi et al. Bandgap engineering of lead-free double perovskite Cs2AgBiBr6 through trivalent metal alloying. Angew Chem Int Ed, 56, 8158(2017).
[12] X Zhao, J Yang, L Zhang et al. Design of lead-free inorganic halide perovskites for solar cells via cation-transmutation. J Am Chem Soc, 139, 2630(2017).
[13] Z Xiao, D B Mitzi, Y Yan et al. Intrinsic instability of Cs2In(I)M(III)X6 (M = Bi, Sb, X = Halogen) double perovskites: A combined density functional theory and experimental study. J Am Chem Soc, 139, 6054(2017).
[14] F Ji, Y Huang, F Gao et al. Near-infrared light-responsive Cu-doped Cs2AgBiBr6. Adv Funct Mater, 30, 2005521(2020).
[15] W Ning, J Bao, F Gao et al. Magnetizing lead-free halide double perovskites. Sci Adv, 6, eabb5381(2020).
[16] F Ji, F Wang, F Gao et al. The atomic-level structure of bandgap engineered double perovskite alloys Cs2AgIn1 –
[17] J Yang, P Zhang, S Wei et al. Band structure engineering of Cs2AgBiBr6 perovskite through order-disordered transition: A first-principle study. J Phys Chem Lett, 9, 31(2018).
[18] W Ning, X G Zhao, F Gao et al. Thermochromic lead-free halide double perovskites. Adv Funct Mater, 29, 1807375(2019).
[19] F Ji, J Klarbring, F Gao et al. Lead-free halide double perovskite Cs2AgBiBr6 with decreased band gap. Angew Chem Int Ed, 59, 15191(2020).
[20] Q Li, Y Wang, W Pan et al. High-pressure band-gap engineering in lead-free Cs2AgBiBr6 double perovskite. Angew Chem Int Ed, 56, 15969(2017).