Perovskite Solar Cells: Correlated Electrical and Chemical Nanoscale Properties in Potassium‐Passivated, Triple‐Cation Perovskite Solar Cells (Adv. Mater. Interfaces 17/2020). Issue 17 (11th September 2020)

• Record Type: Journal Article
• Authors: Tennyson, Elizabeth M.; Abdi‐Jalebi, Mojtaba; Ji, Kangyu; Garrett, Joseph L.; Gong, Chen; Pawlicki, Alison A.; Ovchinnikova, Olga S.; Munday, Jeremy N.; Stranks, Samuel D.; Leite, Marina S.
• Is Part Of: Advanced materials interfaces. Volume 7:Issue 17(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-09-11
• Subjects: correlative microscopy -- halide perovskites -- nanoscale -- passivation -- solar cells; Materials science -- Periodicals; 620.11
• DOI: 10.1002/admi.202070093
• Languages: English
• ISSNs: 2196-7350

Abstract

Abstract : The power conversion efficiency of triple‐cation perovskite solar cells can benefit from the addition of potassium‐halide (KI). In article number 2000515, Marina S. Leite and co‐workers unravel the role of KI by combining electrical and chemical nanoimaging techniques based on scanning probe microscopy. The KI additive is found to migrate to the surface of the perovskite‐absorbing layer while increasing the voltage response of the devices.