Disodium
Benzodipyrrole Sulfonate as Neutral Hole-Transporting
Materials for Perovskite Solar Cells
Rui Shang
Zhongmin Zhou
Hiroki Nishioka
Henry Halim
Shunsuke Furukawa
Izuru Takei
Naoya Ninomiya
Eiichi Nakamura
10.1021/jacs.8b01783.s001
https://acs.figshare.com/articles/journal_contribution/Disodium_Benzodipyrrole_Sulfonate_as_Neutral_Hole-Transporting_Materials_for_Perovskite_Solar_Cells/6107006
Hole-transporting
material (HTM) is an indispensable constituent
in organic electronic devices, generally comprising a donor/dopant
combination. We report that a disodium salt of substituted benzo[1,2-<i>b</i>:4,5-<i>b</i>′]dipyrrole bearing two racemic
alkanediylsulfonate anion side chains (BDPSOs) serves as a neutral,
nonhygroscopic, dopant-free HTM for lead perovskite (MAPbI<sub>3</sub>) solar cells. These organic/inorganic hybrid molecules are useful
for tunable orbital level and controllable solubility. A fluorinated
BDPSO has an energy level matched with MAPbI<sub>3</sub>, affording
an inverted-structure solar cell that performs with 17.2% efficiency
with minimal hysteresis. The solar cell devices fabricated using BDPSOs
showed remarkable storage and operational stability.
2018-04-06 17:05:21
Perovskite Solar Cells Hole-transporting material
device
Disodium Benzodipyrrole Sulfonate
racemic alkanediylsulfonate anion side chains
MAPbI 3
Neutral Hole-Transporting Materials
HTM
BDPSO