An Ultrafast Transient Absorption Study of Charge Separation and Recombination Dynamics in CdSe QDs and Methyl Viologen: Dependence on Surface Stoichiometry

Sekhar, M. Chandra; Paul, Sneha; De, Apurba; Samanta, Anunay

doi:10.1002/slct.201800313

An Ultrafast Transient Absorption Study of Charge Separation and Recombination Dynamics in CdSe QDs and Methyl Viologen: Dependence on Surface Stoichiometry

The dependence of the dynamics of charge separation and recombination between methyl viologen (MV +2 ) and photo‐excited CdSe quantum dots (QDs) on the surface stoichiometry of the latter is studied for QDs with different Cd:Se mole ratios employing ultrafast time‐resolved absorption and emission…