Abstract
AbstractBoth demands of stability and efficiency constitute the gargantuan barriers of perovskite solar cells (PSCs), hampering the academic communities and industrial production. Herein, it is demonstrated that, after depositing optimized CdS shell layers on TiO2 nanorod arrays (NAs) by a simple and rapid chemical bath method at room temperature, the efficiency and stability of PSCs are simultaneously enhanced. The PSCs based on TiO2/CdS core–shell NAs achieve higher power conversion efficiency up to 17.71%, compared to 15.93% of the pristine TiO2 NAs‐based cells. Especially, the stability of the PSCs is prominently improved after optimized CdS layer modification without encapsulation. The significant enhancement of both efficiency and stability are mainly ascribed to that the type‐II structure of TiO2/CdS coaxial nanorods can suppress recombination, and the oxygen vacancies on TiO2 surfaces are not directly contacted with perovskite layers. The surface modification on TiO2 NAs opens up an alternative approach toward improving the performance and stability of PSCs.
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.
