Multifunctional Naphthol Sulfonic Salt Incorporated
in Lead-Free 2D Tin Halide Perovskite for Red Light-Emitting Diodes
Posted on 2020-07-20 - 04:48
Tin halide perovskites
are promising lead-free candidates for light-emitting
diodes (LEDs), but their performance is hindered by the poor crystallinity
quality and the oxidation of tin. It is necessary but challenging
to simultaneously realize modulating crystallization, suppressing
oxidation, and passivating defects to boost the device’s performance.
Here, naphthol sulfonic salt is demonstrated as an effective multifunctional
additive. The sulfonic group can retard crystallization by forming
intermediate complexes with perovskite to form a pinhole-free film.
The reducing hydroxyl group can prevent Sn2+ from oxidation
and hinder the migration of I– ions. The high electron
density of the naphthol ring can enhance the electrostatic attraction
toward undercoordinated Sn2+ to passivate the defects.
The synergistic effect of the multifunctional additive contributes
to a boosted efficiency of 0.72% and a brightness of 132 cd m–2 for quantum-well structure phenethylammonium tin
iodide ((PEA)2SnI4) LEDs, which represents the
most effective lead-free perovskite LEDs in pure-red regions as far
as we know.
CITE THIS COLLECTION
DataCite
3 Biotech
3D Printing in Medicine
3D Research
3D-Printed Materials and Systems
4OR
AAPG Bulletin
AAPS Open
AAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)
Academic Medicine
Academic Pediatrics
Academic Psychiatry
Academic Questions
Academy of Management Discoveries
Academy of Management Journal
Academy of Management Learning and Education
Academy of Management Perspectives
Academy of Management Proceedings
Academy of Management Review
Gao, Congcong; Jiang, Yuanzhi; Sun, Changjiu; Han, Jingrui; He, Tingwei; Huang, Yanmin; et al. (2020). Multifunctional Naphthol Sulfonic Salt Incorporated
in Lead-Free 2D Tin Halide Perovskite for Red Light-Emitting Diodes. ACS Publications. Collection. https://doi.org/10.1021/acsphotonics.0c00497
or
Select your citation style and then place your mouse over the citation text to select it.
SHARE
Usage metrics
Read the peer-reviewed publication
AUTHORS (14)
CG
Congcong Gao
YJ
Yuanzhi Jiang
CS
Changjiu Sun
JH
Jingrui Han
TH
Tingwei He
YH
Yanmin Huang
KY
Kaili Yao
MH
Mei Han
XW
Xi Wang
YW
Yunkun Wang
YG
Yunan Gao
YL
Yongchang Liu
MY
Mingjian Yuan
HL
Hongyan Liang