Synthesis of Air-stable PbSe Quantum Dots Using PbCl2-oleylamine System

Yi Pan; Mohammad A. Sohel; Liang Pan; Zengyan Wei; Hanying Bai; Maria C. Tamargo; R. John

doi:10.1016/j.matpr.2015.04.043

Synthesis of Air-stable PbSe Quantum Dots Using PbCl₂-oleylamine System

Yi Pan
, Mohammad A. Sohel^*
, Liang Pan
, Zengyan Wei
, Hanying Bai
, Maria C. Tamargo
, R. John

^*Corresponding author for this work

City University of New York
Columbia University

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Air-stable monodisperse PbSe quantum dots were synthesized by a hot injection method with a simple PbCl₂-oleylamine (PbCl₂-OLA) system supplying both the Pb source and the capping ligand. Se powder dissolved in oleylamine (SeOLA) was used as the Se precursor. The sizes of the as-synthesized, monodisperse colloidal PbSe quantum dots ranged from 3.6nm to 13.9nm with a relative standard deviation of ~2.8-8.4%. The air-stability of the as-synthesized PbSe quantum dots was confirmed by a systematic study with transmission electron microscopy. Both the air-exposed PbSe quantum dot monolayer film and the solution-stored PbSe quantum dots in n-hexane were air-stable for at least 24 months. This may provide a practical way to fabricate PbSe QDs based films for photovoltaic devices under ambient environment.

Original language	English
Pages (from-to)	281-286
Number of pages	6
Journal	Materials Today: Proceedings
Volume	2
Issue number	1
DOIs	https://doi.org/10.1016/j.matpr.2015.04.043
State	Published - 2015
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Lead chalcogenide
Monodisperse
Oleyl amine
Photovoltatic devices
Solar cells

Access to Document

10.1016/j.matpr.2015.04.043

Cite this

@article{171d3e090d89436c9ec37af75b000d79,

title = "Synthesis of Air-stable PbSe Quantum Dots Using PbCl2-oleylamine System",

abstract = "Air-stable monodisperse PbSe quantum dots were synthesized by a hot injection method with a simple PbCl2-oleylamine (PbCl2-OLA) system supplying both the Pb source and the capping ligand. Se powder dissolved in oleylamine (SeOLA) was used as the Se precursor. The sizes of the as-synthesized, monodisperse colloidal PbSe quantum dots ranged from 3.6nm to 13.9nm with a relative standard deviation of \textasciitilde{}2.8-8.4\%. The air-stability of the as-synthesized PbSe quantum dots was confirmed by a systematic study with transmission electron microscopy. Both the air-exposed PbSe quantum dot monolayer film and the solution-stored PbSe quantum dots in n-hexane were air-stable for at least 24 months. This may provide a practical way to fabricate PbSe QDs based films for photovoltaic devices under ambient environment.",

keywords = "Lead chalcogenide, Monodisperse, Oleyl amine, Photovoltatic devices, Solar cells",

author = "Yi Pan and Sohel, \{Mohammad A.\} and Liang Pan and Zengyan Wei and Hanying Bai and Tamargo, \{Maria C.\} and R. John",

note = "Publisher Copyright: {\textcopyright} 2015 .",

year = "2015",

doi = "10.1016/j.matpr.2015.04.043",

language = "英语",

volume = "2",

pages = "281--286",

journal = "Materials Today: Proceedings",

issn = "2214-7853",

publisher = "Elsevier Ltd",

number = "1",

}

TY - JOUR

T1 - Synthesis of Air-stable PbSe Quantum Dots Using PbCl2-oleylamine System

AU - Pan, Yi

AU - Sohel, Mohammad A.

AU - Pan, Liang

AU - Wei, Zengyan

AU - Bai, Hanying

AU - Tamargo, Maria C.

AU - John, R.

PY - 2015

Y1 - 2015

N2 - Air-stable monodisperse PbSe quantum dots were synthesized by a hot injection method with a simple PbCl2-oleylamine (PbCl2-OLA) system supplying both the Pb source and the capping ligand. Se powder dissolved in oleylamine (SeOLA) was used as the Se precursor. The sizes of the as-synthesized, monodisperse colloidal PbSe quantum dots ranged from 3.6nm to 13.9nm with a relative standard deviation of ~2.8-8.4%. The air-stability of the as-synthesized PbSe quantum dots was confirmed by a systematic study with transmission electron microscopy. Both the air-exposed PbSe quantum dot monolayer film and the solution-stored PbSe quantum dots in n-hexane were air-stable for at least 24 months. This may provide a practical way to fabricate PbSe QDs based films for photovoltaic devices under ambient environment.

AB - Air-stable monodisperse PbSe quantum dots were synthesized by a hot injection method with a simple PbCl2-oleylamine (PbCl2-OLA) system supplying both the Pb source and the capping ligand. Se powder dissolved in oleylamine (SeOLA) was used as the Se precursor. The sizes of the as-synthesized, monodisperse colloidal PbSe quantum dots ranged from 3.6nm to 13.9nm with a relative standard deviation of ~2.8-8.4%. The air-stability of the as-synthesized PbSe quantum dots was confirmed by a systematic study with transmission electron microscopy. Both the air-exposed PbSe quantum dot monolayer film and the solution-stored PbSe quantum dots in n-hexane were air-stable for at least 24 months. This may provide a practical way to fabricate PbSe QDs based films for photovoltaic devices under ambient environment.

KW - Lead chalcogenide

KW - Monodisperse

KW - Oleyl amine

KW - Photovoltatic devices

KW - Solar cells

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DO - 10.1016/j.matpr.2015.04.043

M3 - 文章

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JO - Materials Today: Proceedings

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