| 초록 |
Solution-processed semiconductors are promising materials to realize optoelectronic devices that combine high performance with inexpensive manufacturing. It will be interesting to unite colloidal quantum dots (CQDs) capable of harvesting infrared photons with more strongly absorbing organic molecules. Unfortunately, CQD:organic hybrid photovoltaics have been limited to power conversion efficiencies (PCEs) below 10% because of chemical mismatch and difficulty in facilitating charge collection. Here, we propose a new hybrid architecture that synergistically exploits the benefits of CQDs and organics in photovoltaics by introducing small molecules into a CQD/organic stacked structure The resulting hybrid solar cells exhibit PCEs of 13.1% and retain over 80% of their initial PCE after 150 hours of continuous operation. (1) Lee et al., Nature Energy, 4, 969 (2019) |
