Online citations, reference lists, and bibliographies.
← Back to Search

Size-dependent Optical Properties Of Colloidal PbS Quantum Dots.

I. Moreels, K. Lambert, D. Smeets, D. De Muynck, Tom Nollet, J. Martins, F. Vanhaecke, A. Vantomme, C. Delerue, G. Allan, Z. Hens
Published 2009 · Materials Science, Medicine

Save to my Library
Download PDF
Analyze on Scholarcy Visualize in Litmaps
Share
Reduce the time it takes to create your bibliography by a factor of 10 by using the world’s favourite reference manager
Time to take this seriously.
Get Citationsy
We quantitatively investigate the size-dependent optical properties of colloidal PbS nanocrystals or quantum dots (Qdots), by combining the Qdot absorbance spectra with detailed elemental analysis of the Qdot suspensions. At high energies, the molar extinction coefficient epsilon increases with the Qdot volume d(3) and agrees with theoretical calculations using the Maxwell-Garnett effective medium theory and bulk values for the Qdot dielectric function. This demonstrates that quantum confinement has no influence on epsilon in this spectral range, and it provides an accurate method to calculate the Qdot concentration. Around the band gap, epsilon only increases with d(1.3), and values are comparable to the epsilon of PbSe Qdots. The data are related to the oscillator strength f(if) of the band gap transition and results agree well with theoretical tight-binding calculations, predicting a linear dependence of f(if) on d. For both PbS and PbSe Qdots, the exciton lifetime tau is calculated from f(if). We find values ranging between 1 and 3 mus, in agreement with experimental literature data from time-resolved luminescence spectroscopy. Our results provide a thorough general framework to calculate and understand the optical properties of suspended colloidal quantum dots. Most importantly, it highlights the significance of the local field factor in these systems.
This paper references
10.1098/rspl.1904.0058
Colours in Metal Glasses and in Metallic Films.
J. Garnett (1904)
10.1103/PHYSREVSERIESI.34.161
The Selective Transmission and the Dispersion of the Liquid Chlorides
H. H. Marvin (1912)
Crystal Structures, 2nd ed.
R.W.G. Wyckoff (1963)
Quantum Mechanics, 2nd ed
E. Merzbacher (1970)
Backscattering Spectrometry
W. Chu (1978)
10.1103/PHYSREVB.38.9797
Quantum-size effects of interacting electrons and holes in semiconductor microcrystals with spherical shape.
Kayanuma (1988)
10.1021/J100155A009
Nanometer-sized semiconductor clusters: materials synthesis, quantum size effects, and photophysical properties
Y. Wang (1991)
10.1103/PHYSREVB.47.4569
Effects of dielectric confinement and electron-hole exchange interaction on excitonic states in semiconductor quantum dots.
Takagahara (1993)
10.1021/J100148A026
Synthesis and Characterization of Surface-Modified Colloidal CdTe Quantum Dots
T. Rajh (1993)
10.1016/0022-3093(94)90393-X
Quantum confinement of PbS microcrystals in glass
N. Borrelli (1994)
10.1016/0030-4018(94)90668-8
Dielectric confinement and the linear and nonlinear optical properties of semiconductor-doped glasses
D. Ricard (1994)
Quantum Confinement of PbS
N. F. Borrelli (1994)
10.1063/1.358926
OPTICAL PROPERTIES OF PBSE
N. Suzuki (1995)
10.1021/JP952869N
Theoretical Study of the Electronic Structure of PbS Nanoclusters
R. Kane (1996)
10.1063/1.367466
Optical properties of PbS
H. Kanazawa (1998)
10.1146/ANNUREV.MATSCI.30.1.475
The Electronic Structure of Semiconductor Nanocrystals1
A. L. Efros (2000)
10.1023/A:1014246315331
Surface Stoichiometry of CdSe Nanocrystals Determined by Rutherford Backscattering Spectroscopy
J. Taylor (2001)
10.1147/rd.451.0047
Colloidal synthesis of nanocrystals and nanocrystal superlattices
C. Murray (2001)
10.1163/156939301X00968
Two Main Avenues Leading To the Maxwell Garnett Mixing Rule
A. Sihvola (2001)
10.1021/JP026380N
Etching of Colloidal InP Nanocrystals with Fluorides: Photochemical Nature of the Process Resulting in High Photoluminescence Efficiency
D. Talapin (2002)
10.1021/JP025698C
On the Absorption Cross Section of CdSe Nanocrystal Quantum Dots
C. Leatherdale (2002)
10.1063/1.1485125
Color-selective semiconductor nanocrystal laser
Hans-Jürgen Eisler (2002)
10.1021/CM034081K
Experimental Determination of the Extinction Coefficient of CdTe, CdSe, and CdS Nanocrystals
W. W. Yu (2003)
10.1103/PHYSREVB.70.245321
Confinement effects in PbSe quantum wells and nanocrystals
G. Allan (2004)
10.1002/SMLL.200500239
Physicochemical evaluation of the hot-injection method, a synthesis route for monodisperse nanocrystals.
C. de Mello Donegá (2005)
10.1002/ADMA.200401552
Infrared Quantum Dots
E. Sargent (2005)
10.1021/JP046127I
Absorption cross-section and related optical properties of colloidal InAs quantum dots.
Pingrong Yu (2005)
10.1103/PhysRevLett.95.236804
Frequency-dependent spontaneous emission rate from CdSe and CdTe nanocrystals: influence of dark states.
A. V. van Driel (2005)
10.1088/0957-4484/16/2/001
Time-resolved photoluminescence spectroscopy of ligand-capped PbS nanocrystals.
J. Warner (2005)
10.1126/SCIENCE.1104274
Quantum Dots for Live Cells, in Vivo Imaging, and Diagnostics
X. Michalet (2005)
Quantum Dots for Live Cells
X Michalet (2005)
10.1021/JA063166U
Size-dependent extinction coefficients of PbS quantum dots.
L. Cademartiri (2006)
Electronic Structure of Semiconductor Nanocrystals
J. Li (2006)
10.1364/OE.14.003273
A solution-processed 1.53 mum quantum dot laser with temperature-invariant emission wavelength.
S. Hoogland (2006)
10.1021/JP0563585
Multigram scale, solventless, and diffusion-controlled route to highly monodisperse PbS nanocrystals.
L. Cademartiri (2006)
10.1021/CM071410Q
Composition and size-dependent extinction coefficient of colloidal PbSe quantum dots
I. Moreels (2007)
10.1002/anie.200705109
Light-emitting diodes with semiconductor nanocrystals.
A. Rogach (2008)
10.1021/ja803994m
Surface chemistry of colloidal PbSe nanocrystals.
I. Moreels (2008)
10.1002/anie.200800169
Semiconductor quantum dots for bioanalysis.
R. Gill (2008)
10.1002/smll.200800068
On the interpretation of colloidal quantum-dot absorption spectra.
I. Moreels (2008)
10.1038/NPHOTON.2009.89
Infrared photovoltaics made by solution processing
E. Sargent (2009)
10.1103/PHYSREVLETT.102.177402
Universal role of discrete acoustic phonons in the low-temperature optical emission of colloidal quantum dots.
D. Oron (2009)
10.1016/J.SPMI.2008.11.026
The ground-state exciton lifetime of PbSe nanocrystal quantum dots
A. Kigel (2009)
10.1021/nn9001616
Size-dependent composition and molar extinction coefficient of PbSe semiconductor nanocrystals.
Quanqin Dai (2009)



This paper is referenced by
10.1016/B978-0-12-820628-7.00007-1
Colloidal quantum dots based solar cells
Shengyi Yang (2021)
10.1016/j.jallcom.2020.156831
An enhanced Vis-NIR photodetector based on Ag@ PbS core-shell plasmonic heterostructure
M. Mozafari (2021)
10.1021/acs.jpcc.1c06713
Size-Dependent Janus-Ligand Shell Formation on PbS Quantum Dots
(2021)
10.1038/s41566-021-00878-9
Solution-processed PbS quantum dot infrared laser with room-temperature tuneable emission in the optical telecommunications window.
G. Whitworth (2021)
10.1039/d0cs01488e
Photon management to reduce energy loss in perovskite solar cells.
Cong Chen (2021)
10.1021/acsaelm.1c00422
Strain Modulation for High Brightness Blue Luminescence of Pr3+-Doped Perovskite Nanocrystals via Siloxane Passivation
Xianghua Wang (2021)
10.1016/j.jpowsour.2020.229324
Pb5Sb8Se17-δ nanocrystals: A new solar absorber material with an optimal bandgap and an efficiency near 6 % under 0.05 sun
Patsorn Boon-on (2021)
10.1021/acsomega.0c05974
Thermodynamic Implications and Time Evolution of the Interactions of Near-Infrared PbS Quantum Dots with Human Serum Albumin
Q. Wang (2021)
10.1021/acs.jpcc.1c07064
Anisotropic, Nonthermal Lattice Disordering Observed in Photoexcited PbS Quantum Dots
(2021)
10.1039/d1sc02096j
Simple cubic self-assembly of PbS quantum dots by finely controlled ligand removal through gel permeation chromatography
Jianjun Liu (2021)
10.1021/ACS.JPCC.1C02430
Repulsive, Densely Packed Ligand-Shells Mediate Interactions between PbS Nanocrystals in Solution
Samuel W. Winslow (2021)
10.1021/acsami.1c11214
Reduction of Hydroxyl Traps and Improved Coupling for Efficient and Stable Quantum Dot Solar Cells.
Debranjan Mandal (2021)
10.1016/j.xcrp.2021.100655
Scalable fabrication of efficient p-n junction lead sulfide quantum dot solar cells
(2021)
10.1016/j.jallcom.2020.155292
Polycrystalline lead selenide prepared by an oxygen ion beam induction
Hao Yang (2021)
10.1063/5.0065486
Shaping the spontaneous emission of extended incoherent sources into composite radial vector beams
Domitille Schanne (2021)
10.1016/J.MSEB.2021.115268
Microwave-assisted synthesis of Cu doped PbS nanostructures with enhanced dielectric and electrical properties for optoelectronic applications
M. Shkir (2021)
10.1021/acsanm.1c02059
Efficient NIR-to-Visible Upconversion of Surface-Modified PbS Quantum Dots for Photovoltaic Devices
Neeti Tripathi (2021)
10.1063/5.0049729
The quantum confinement effect on the spectrum of near-field thermal radiation by quantum dots
Saman Zare (2021)
10.1002/jssc.202001105
Onsite/on-field analysis of pesticide and veterinary drug residues by a state-of-art technology: A review.
Musfiqur Rahman (2021)
10.1021/ACS.CHEMMATER.1C00520
Revealing the Molecular Identity of Defect Sites on PbS Quantum Dot Surfaces with Redox-Active Chemical Probes
Carolyn L. Hartley (2021)
10.1002/ADFM.202103106
Van der Waals Integration Based on Two-Dimensional Materials for High-Performance Infrared Photodetectors
Haoyun Wang (2021)
10.1007/S13538-021-00907-6
Experimental and Ab Initio Investigation of the Physical Properties of PbS Thin Films Prepared by Chemical Bath Deposition (CBD)
A. Madani (2021)
10.1021/acs.chemmater.1c01810
Effects of Ligand Shell Composition on Surface Reduction in PbS Quantum Dots
Carolyn L. Hartley (2021)
10.3390/nano11102561
PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation
L. Yun (2021)
10.1021/acs.chemmater.1c02501
Correlating ZnSe Quantum Dot Absorption with Particle Size and Concentration
Reyhaneh Toufanian (2021)
10.1002/adfm.202105719
Solution‐Processable Carbon Nanotube Nanohybrids for Multiplexed Photoresponsive Devices
Qingyu Ye (2021)
10.1063/5.0029050
Engineering plasmonic hot carrier dynamics toward efficient photodetection
Yisong Zhu (2021)
10.1039/d0nr09067k
A general strategy for semiconductor quantum dot production.
Yuanqing Xu (2021)
10.1016/J.JALLCOM.2021.158974
Rapid and convenient crystallization of quantum dot CsPbBr3 inside a phosphate glass matrix
P. Aryal (2021)
10.1126/sciadv.abf4741
Relations between absorption, emission, and excited state chemical potentials from nanocrystal 2D spectra
Jisu Ryu (2021)
10.1038/s41598-021-95475-9
Structural characterization and magnetic response of poly(p-xylylene)–MnSb and MnSb films deposited at cryogenic temperature
L. N. Oveshnikov (2021)
10.1016/j.ijleo.2020.165933
Highly photoresponsive visible light photodetector using nano PbS thin film on paper
Pooja M. Khanzode (2021)
See more
Semantic Scholar Logo Some data provided by SemanticScholar