Anchoring and post-depositional growth enables matrix manipulation of PbS QD inks and efficient solar cells

Matrix thickness surrounding PbS colloidal quantum dots (CQDs) significantly influences charge transport in photovoltaic devices. Through an anchoring and post-depositional-growth strategy utilizing thiazoline-2-thiol (TT), this study achieves reduced matrix thickness and strengthened inter-dot coupling. These improvements elevate the power conversion efficiency from 12.1% to 13.6%.