2022
DOI: 10.1364/ol.447781
|View full text |Cite
|
Sign up to set email alerts
|

In situ siloxane passivation of colloidal lead halide perovskite via hot injection for light-emitting diodes

Abstract: All-inorganic cesium lead halide perovskite (CsPbX3; X = Cl, Br) nanocrystals (NCs) are synthesized via a modified hot injection method using 3-mercaptopropyltrimethoxysilane (MPTMS), together with oleic acid and oleylamine, for in situ passivation of the surface defects. The surface chemistry, revealed by Fourier transform infrared spectroscopy (FTIR) and x-ray photoelectron spectroscopy (XPS) techniques, shows an absence of Si-O-Si network and C-O groups on these in situ passivated CsPbX3 NCs, denoted as InM… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

0
6
0

Year Published

2023
2023
2024
2024

Publication Types

Select...
5

Relationship

1
4

Authors

Journals

citations
Cited by 6 publications
(7 citation statements)
references
References 35 publications
0
6
0
Order By: Relevance
“…It is interesting to find that the charge transport capability is mostly determined by ligand bonding chemistry instead of the siloxane groups. Moreover, the current densities of the ExMP-CsPbBr 3 QD film in the <5 V bias range are superior to all other QD films, including the recently reported InMP-CsPbBr 3 QD films that were in situ passivated by MPTMS . Therefore, exploring hybrid ligand polymerization on the surface of lead halide PQDs is promising for electroluminescence applications.…”
Section: Resultsmentioning
confidence: 99%
See 4 more Smart Citations
“…It is interesting to find that the charge transport capability is mostly determined by ligand bonding chemistry instead of the siloxane groups. Moreover, the current densities of the ExMP-CsPbBr 3 QD film in the <5 V bias range are superior to all other QD films, including the recently reported InMP-CsPbBr 3 QD films that were in situ passivated by MPTMS . Therefore, exploring hybrid ligand polymerization on the surface of lead halide PQDs is promising for electroluminescence applications.…”
Section: Resultsmentioning
confidence: 99%
“…In the case of in situ MPTMS passivation, by which the silyl ligand is introduced prior to hot injection, twin vibrations at 1641 and 908 cm –1 are more pronounced . The higher reaction temperature inhibits the formation of Si–O–Si, but accelerates the formation of silanol and strained edge-shared tetrahedra on the surface, ,,, which is conducive to achieving a higher electrical conductivity as it leads to lamellar polymerization with reduced thickness of the monolayer shell.…”
Section: Resultsmentioning
confidence: 99%
See 3 more Smart Citations