Current Photovoltaic Research ISSN:2288-3274(Print) 2508-125X(Online)

Colloidal quantum dot (CQD) solar cells have attracted great attention due to their cost-effectiveness and solutionprocessability, as well as their size-dependent optical and electrical properties. The power conversion efficiency of CQD solar cells has rapidly increased up to ~8.6%, which corresponds to the 3 - 4 fold improvement during the last 3 - 4 years. Up to now, there have been many pioneering results in CQD solar cells. Here, we review the recent progress of CQD solar cells including CQD synthesis strategy and device structure engineering.