Performance and stability gain in zero-dimensional perovskite solar cells after >2 years when hybridized with silicon nanocrystals

Calum McDonald; Chengsheng Ni; Paul Maguire; Davide Mariotti; Vladimir Svrcek

doi:10.1039/c9na00516a

Performance and stability gain in zero-dimensional perovskite solar cells after >2 years when hybridized with silicon nanocrystals

Nanoscale Adv. 2019 Nov 8;1(12):4683-4687. doi: 10.1039/c9na00516a. eCollection 2019 Dec 3.

Authors

Calum McDonald¹, Chengsheng Ni², Paul Maguire³, Davide Mariotti³, Vladimir Svrcek¹

Affiliations

¹ Research Center for Photovoltaics, National Institute of Advanced Industrial Science and Technology (AIST) Central 2, Umezono 1-1-1 Tsukuba 305-8568 Japan calum.mcdonald@aist.go.jp.
² College of Resources and Environment, Southwest University Beibei Chongqing China.
³ Nanotechnology & Integrated Bio-Engineering Centre (NIBEC), Ulster University Shore Road Newtownabbey BT37 0QB UK.

Abstract

We report highly stable zero-dimensional (CH₃NH₃)₃Bi₂I₉ photovoltaic cells which demonstrate a 33% increase in performance after 2 years when hybridized with silicon nanocrystals (SiNCs). The natural oxidation of SiNCs is expected to consume radical species and improve the SiNC/(CH₃NH₃)₃Bi₂I₉ interface and electronic coupling whilst also inhibiting defect-induced degradation.