Abstract
Organic–inorganic hybrid perovskite solar cells (PSCs) exhibit high photovoltaic performance, while their utilization of infrared and near-infrared (NIR) irradiation is poor. The up-conversion material can highly convert the NIR into visible light, providing the PSCs with a possibility of utilizing NIR. In this report, the critical TiO2 mesoporous layer was successfully improved with the incorporation of 30 nm cubic NaYF4:Yb3+, Er3+ up-conversion nanoparticles (UCNPs). Transmission electron microscopy and fluorescence spectrum analysis of the mesoporous layer confirmed the formation of the shared interface between TiO2 and UCNPs. The NaYF4:Yb3+, Er3+ nanoparticles can convert the 980 nm NIR into 520, 545, and 660 nm emissions, in which the excited electrons at 520 and 545 nm can directly inject into the conduction band of TiO2 by shared interfaces. Meanwhile, the visible light (660 nm) can be absorbed by perovskite layer. At last, the device not only enhanced the short-circuit current but also exhibited a...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
