Add time:07/30/2019         Source:sciencedirect.com

To improve the electron transporting and suppress the charge recombination at the interface of TiO2/perovskite, the smooth and compact yttrium(Y)-doped TiO2 compact layers were successfully prepared via a hydrolysis-pyrolysis method. The influences of Y-doped on the microstructure, crystal phase, chemical composition, optical absorption of the TiO2 compact layers were investigated, and the electron transporting and charge recombination at the TiO2/perovskite interface of solar cells were systemically analyzed. The planar perovskite solar cells based on the Y-doped TiO2 compact layers with a Y/Ti molar ratio of 5% obtained a best photoelectric conversion efficiency (PCE) of 15.52%, comparing with a PCE of 14.05% from the undoped devices. When the 200-nm length 3% Y-doped TiO2 nanorod arrays were introduced between the 5% Y-doped TiO2 compact layers and the perovskite thin film, the champion cell achieved a PCE of 18.32% under illumination of simulated AM 1.5 sunlight (100 mA cm−2).

We also recommend Trading Suppliers and Manufacturers of YTTRIUM CHLORIDE (cas 10361-92-9). Pls Click Website Link as below: cas 10361-92-9 suppliers