Enhanced Stability of Perovskite Solar Cells through Corrosion-Free Pyridine Derivatives in Hole-Transporting Materials

Youfeng Yue; NovianaTjitra Salim; Yongzhen Wu; Xudong Yang; Ashraful Islam; Wei Chen; Jian Liu; Enbin Bi; Fengxian Xie; Molang Cai; Liyuan Han

doi:10.1002/adma.201602822

Enhanced Stability of Perovskite Solar Cells through Corrosion-Free Pyridine Derivatives in Hole-Transporting Materials

Adv Mater. 2016 Dec;28(48):10738-10743. doi: 10.1002/adma.201602822. Epub 2016 Oct 5.

Authors

Affiliations

¹ Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, Tsukuba, Ibaraki, 305-0047, Japan.
² State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 2800 Dong Chuan RD, Shanghai, 200240, China.

PMID: 27704642
DOI: 10.1002/adma.201602822

Abstract

The molecular structure of pyridine derivatives is critical to perovskite solar cell performance, especially stability. Most of the pyridine additives easily form complexes with perovskite. A new pyridine additive with a long alkyl chain substituted at its o-position does not corrode perovskite. The stability of devices containing this additive is the highest among the investigated cells.

Keywords: corrosion-free; new complexes; perovskite solar cells; pyridine additives; stability.