Improved Solar Cell and Photoresponse Performance of CH3NH3PbI3 Perovskite with ZnO Nanorods

摘要

The CH3NH3PbI3 perovskite has great interest due to good candidate for low cost solar cell and photodetector. The research of this report is to investigate the effect of growth time to the morphology of ZnO NRs and its performance of solar cell and photoresponse . The ZnO NRs were grown at growth time of three and four hours on the ZnO seed layer using hydrothermal method. While perovskite CH3NH3PbI3 were synthesized by one-step spin coating. The CH3NH3PbI3/ZnO NRs samples was characterized by x-ray diffraction for structural properties analysis and scanning electron microscopy for morphological properties. The The CH3NH3PbI3 /ZnO NRs samples performance was measured by solar simulator under light illumination. The XRD results show that PSC has ZnO and CH3NH3PbI3 phases with small impurities of PbI2. The growth time increases the length of ZnO NRs and in combination with CH3NH3PbI3 can enhance performance of solar cell and photoresponse.