Coordination chemistry of the host matrices with dopant luminescent Ln3+ ion and their impact on luminescent properties

•Coordination chemistry of host matrices and their role on luminescent properties.•Impact of crystal structure, and morphology on emission properties.•Influence of crystalline shell formation on luminescent properties.•Importance of sensitizer co-doping to enhance the emission efficiency.•Future perspectives in expansion of fluorescent based luminescent lanthanide nanomaterials.