Cutting-edge stability in perovskite solar cells through quantum dot-covered P3HT nanofibers

ABSTRACT

Graphene and carbon quantum dot (GQD and CQD) nanoparticles as well as their related supramolecules, entitled as poly(3-hexylthiophene) (P3HT) nanofiber NF/GQD and P3HT NF/CQD, were prepared via decoration of QDs onto P3HT nanofibers, and applied in CH₃NH₃PbI₃ perovskite solar cells. CH₃NH₃PbI₃ photovoltaic cells represented performance of 10.61%, but completely lost function after 150 days air exposure. Instead, P3HT NF/QD supramolecules considerably promoted and stabilized perovskite photovoltaics. Efficacies of (20.15 and 18.90%) and (12.73 and 10.96%) were reached within 0 and 150 days exposure to air at 30°C and 35% humidity for P3HT NF/GQD and P3HT NF/CQD modified devices, respectively.

Graphical Abstract

KEYWORDS:

• Quantum dot
• P3HT
• nanofiber
• supramolecule
• CH₃NH₃PbI₃ solar cell
• stabilization

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Guoning Chen

Guoning Chen was born in Taian, Shandong, P.R. China, in 1996. He received the bachelor‘s degree from Shandong University of Science and Technology, P.R. China. Now, he studies in China University of Petroleum. His research interests include corrosion, welding, Nanoscale materials, welding heat treatment.

Zhengqi Gong

Zhengqi Gong was born Zibo, Shandong, P.R. China, in 1996. He received the bachelor‘s degree from Shandong University of Science and Technology, P.R. China. Now, he studies in University of Science and Technology Beijing. His research interests include advanced composite material preparation and processing, Intelligent material preparation and processing technology.

Xihan Bin

Xihan Bin was born in Neijiang, Sichuan, P.R. China, in 2000. Now, he studies in School of mathematics and Information Engineering, Tongji University. His research interests include Silicon carbon anode materials for lithium ion batteries.

Samira Agbolaghi

Samira Agbolaghi was born in Tabriz, Iran in 1987. She received her Ph.D. from Sahand University of Technology at Polymer Engineering in 2017. She is now associate professor at Azarbaijan Shahid Madani University.