Effects of co-adsorption on interfacial charge transfer in a quantum dot@dye composite.

ABSTRACT: The sensitive electronic environment at the quantum dot (QD)-dye interface becomes a roadblock to enhancing the energy conversion efficiency of dye-functionalized quantum dots (QDs). Energy alignments and electronic couplings are the critical factors governing the directions and rates of different charge transfer pathways at the interface, which are tunable by changing the specific linkage groups that connect a dye to the QD surface. The variation of specific anchors changes the binding configurations of a dye on the QD surface. In addition, the presence of a co-adsorbent changes the dipole-dipole and electronic interactions between a QD and a dye, resulting in different electronic environments at the interface. In the present work, we performed density functional theory (DFT)-based calcul

SUBMITTER: Cui P 

PROVIDER: S-EPMC8452815 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature