Document Abstract
Quantum dots (QDs), due inter alia to their colourtunable symmetry, narrow emission, broad absorption, stability,
and solution processibility have received an upsurge of interest in the last decade as potential materials for
diverse applications. Doped QDs, in particular, have gained significant attention as a new class of luminescent
materials since dopants influence the optical behaviour of QDs. Therefore, doped ZnS QDs possess conspicuous
properties like longer dopant emission lifetime and lower toxicity. The dopant emission lifetimes of transitionmetal
ions are longer than the energy-gap and defect-related luminescence of the host as well as the biological
background fluorescence to offer immense prospect for removal of background fluorescence for sensing applications.
Probes based on phosphorescence or fluorescence enhancement of QDs is crucial for the development of
the detection capability. This current review highlights the optical property and various sensing strategies of Mndoped
ZnS QDs that make them exceptional probes for applications in sensing. The review not only intends to
present an all-encompassing study of the well-documented usages of QDs, but is also rather addressing the
current promising improvements, concepts, and excellent applications in research of doped QDs for chemo- and
biosensing. Over 200 publications are overviewed and considered here in the perspective of leading applications
in sensing dealing with for instance, fluorescence, phosphorescence, chemiluminescence, electrochemiluminescence
and biosensing features.