10.1021/jacs.8b01783.s001
Rui Shang
Rui
Shang
Zhongmin Zhou
Zhongmin
Zhou
Hiroki Nishioka
Hiroki
Nishioka
Henry Halim
Henry
Halim
Shunsuke Furukawa
Shunsuke
Furukawa
Izuru Takei
Izuru
Takei
Naoya Ninomiya
Naoya
Ninomiya
Eiichi Nakamura
Eiichi
Nakamura
Disodium
Benzodipyrrole Sulfonate as Neutral Hole-Transporting
Materials for Perovskite Solar Cells
American Chemical Society
2018
Perovskite Solar Cells Hole-transporting material
device
Disodium Benzodipyrrole Sulfonate
racemic alkanediylsulfonate anion side chains
MAPbI 3
Neutral Hole-Transporting Materials
HTM
BDPSO
2018-04-06 17:05:21
Journal contribution
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.