Lead-free ternary halide perovskitesBandgap engineeringSynthesis routesStabilityPhotovoltaic application and beyondTANDEM SOLAR-CELLSDETAILED BALANCE LIMITLIGHT-EMITTING-DIODESOPEN-CIRCUIT VOLTAGEHIGH-EFFICIENCYHYBRID PEROVSKITESODIUM STIBOGLUCONATESINGLE JUNCTIONFILM MORPHOLOGYLAYERED-PHASE