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Phys Chem Chem Phys
; 17(4): 2335-8, 2015 Jan 28.
Article
in English
| MEDLINE
| ID: mdl-25504144
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 VOC and lower JSC illustrating the role of matching energy levels, however both HTMs gave efficient cells despite a difference of 0.44 V in their redox potentials.