Division of Advanced Materials , Korea Research Institute of Chemical Technology (KRICT) , Daejeon 34114 , Republic of Korea.
Department of Energy Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea.
ACS Appl Mater Interfaces. 2019 Feb 6;11(5):4705-4711. doi: 10.1021/acsami.8b16490. Epub 2019 Jan 28.
We demonstrate morphological and optical engineering by using processing additives and optical spacers for polymer solar cells. Among various processing additives, introduction of diphenyl ether (DPE) into the active layer results in the smoothest surface roughness with uniform and well-distributed donor/acceptor domains, and the device with DPE shows the highest device efficiency of 10.22% due to enhanced charge collection efficiency and minimized recombination loss. Additional ZnO optical spacers on the active layer controls the distribution of the electric field in the whole device and enhances the light absorption within the active layer, thereby improving device efficiency up to 10.81%.
我们通过使用加工添加剂和光学间隔物来展示聚合物太阳能电池的形态和光学工程。在各种加工添加剂中，将二苯醚（DPE）引入活性层会导致表面粗糙度最平滑，施主/受主域均匀且分布良好，并且由于电荷收集效率提高和复合损失最小化，使用 DPE 的器件显示出最高的器件效率 10.22%。在活性层上添加 ZnO 光学间隔物可以控制整个器件中的电场分布，并增强活性层内的光吸收，从而将器件效率提高到 10.81%。
