Abstract

NiOx is one of the most promising choices for hole transporting layer in p-i-n structure perovskite solar cells for its negligible hysteresis, impressive stability and hole extraction efficiency. However, traditional sol-gel process leaves resulted NiO thin film with pin-holes and flawed contacts between NiO layer and FTO electrode below. Herein, ultrasonic spray pyrolysis technique is introduced for the preparation of continuous, pin-hole free NiOx film for the application in perovskite solar cells. The concurrently sprayed and pyrolyzed NiO film exhibits supreme contact bridging FTO substrate and light-harvesting perovskite layer. As a result, solar cells based on ultrasonic-sprayed NiO thin film demonstrates enhanced power conversion efficiency 27% higher than sol-gel prepared scenario. Electrical and morphological studies are carried out and it is found that improved conductivity, reduced pin-holes and improved perovskite growth are three main reasons reducing unfavored charge transfer processes in the operation of solar cell.

Full Text
Paper version not known

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 call

Disclaimer: 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.