CrystEngComm, volume 15, issue 3, pages 597-603

Growth orientation, shape evolution of monodisperse PbSe nanocrystals and their use in optoelectronic devices

Chunguang Li 1
Tianyu Bai 1
Feifei Li 1
Long Wang 1
Xiaofeng Wu 1
Long Yuan 1
Zhan Shi 1
Shouhua Feng 1
Publication typeJournal Article
Publication date2013-01-01
Journal: CrystEngComm
Quartile SCImago
Q2
Quartile WOS
Q1
Impact factor3.1
ISSN14668033, 14668033
General Chemistry
Condensed Matter Physics
General Materials Science
Abstract
A new facile solution method for the synthesis of high quality lead selenide (PbSe) nanocrystals with controllable size and shape was developed. A Pb–stearate complex and oleylamine–selenium (OLA–Se) were used as new precursors to prepare monodispersed nanocrystals instead of the traditional lead oxide (PbO) and trioctylphosphine–selenium (TOPSe). Both of the lead and chalcogenide precursors used in this method are inexpensive and air-stable, which largely reduces the cost of the reaction and simplifies the synthetic process. Five different shapes including quasi-spherical, cubic, octahedral, cuboctahedral and star shaped monodispersed PbSe nanocrystals were obtained, and the particle size can be easily tuned from ∼18 nm to ∼50 nm by varying the amount of oleic acid (OA) while keeping the amount of oleylamine (OLA) fixed. Oleic acid based growth orientation and shape evolution mechanism in double stabilizer surfactants was investigated in detail. The etching of PbSe nanocrystals was also observed when they were dispersed in toluene containing excessive amine over time, the etching process of oleylamine occurred on particle surfaces, and a new framework composed of nanorods formed around the nanocrystals. An ITO–PbSe–Al device based on a film of PbSe nanocrystals was constructed. The dark steadystate I–V characteristics of the films before and after ligand exchange revealed a broad prospect for the use of PbSe nanocrystals in light detection and infrared solar cells.

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GOST Copy
Li C. et al. Growth orientation, shape evolution of monodisperse PbSe nanocrystals and their use in optoelectronic devices // CrystEngComm. 2013. Vol. 15. No. 3. pp. 597-603.
GOST all authors (up to 50) Copy
Li C., Bai T., Li F., Wang L., Wu X., Yuan L., Shi Z., Feng S. Growth orientation, shape evolution of monodisperse PbSe nanocrystals and their use in optoelectronic devices // CrystEngComm. 2013. Vol. 15. No. 3. pp. 597-603.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1039/c2ce26516h
UR - https://doi.org/10.1039/c2ce26516h
TI - Growth orientation, shape evolution of monodisperse PbSe nanocrystals and their use in optoelectronic devices
T2 - CrystEngComm
AU - Wang, Long
AU - Wu, Xiaofeng
AU - Li, Chunguang
AU - Bai, Tianyu
AU - Li, Feifei
AU - Yuan, Long
AU - Shi, Zhan
AU - Feng, Shouhua
PY - 2013
DA - 2013/01/01 00:00:00
PB - Royal Society of Chemistry (RSC)
SP - 597-603
IS - 3
VL - 15
SN - 1466-8033
SN - 1466-8033
ER -
BibTex |
Cite this
BibTex Copy
@article{2013_Li,
author = {Long Wang and Xiaofeng Wu and Chunguang Li and Tianyu Bai and Feifei Li and Long Yuan and Zhan Shi and Shouhua Feng},
title = {Growth orientation, shape evolution of monodisperse PbSe nanocrystals and their use in optoelectronic devices},
journal = {CrystEngComm},
year = {2013},
volume = {15},
publisher = {Royal Society of Chemistry (RSC)},
month = {jan},
url = {https://doi.org/10.1039/c2ce26516h},
number = {3},
pages = {597--603},
doi = {10.1039/c2ce26516h}
}
MLA
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MLA Copy
Li, Chunguang, et al. “Growth orientation, shape evolution of monodisperse PbSe nanocrystals and their use in optoelectronic devices.” CrystEngComm, vol. 15, no. 3, Jan. 2013, pp. 597-603. https://doi.org/10.1039/c2ce26516h.
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