Hole-transport materials with greatly-differing redox potentials give efficient TiO2- [CH3NH3][PbX3] perovskite solar cells

Antonio Abate, Miquel Planells, Derek J. Hollman, Vishal Barthi, Suresh Chand, Henry J. Snaith*, Neil Robertson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Two diacetylide-triphenylamine hole-transport materials (HTM) with varying redox potential have been applied in planar junction TiO2-[CH3NH3] PbI3-xClx solar cells leading to high power-conversion efficiencies up to 8.8%. More positive oxidation potential of the HTM gives higher V-OC and lower J(SC) illustrating the role of matching energy levels, however both HTMs gave efficient cells despite a difference of 0.44 V in their redox potentials.

Original languageEnglish
Pages (from-to)2335-2338
Number of pages4
JournalPhysical Chemistry Chemical Physics
Volume17
Issue number4
Early online date4 Dec 2014
DOIs
Publication statusPublished - 28 Jan 2015

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