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Metal Halide Solid-State Surface Treatment For High Efficiency PbS And PbSe QD Solar Cells

Ryan W. Crisp, D. Kroupa, A. Marshall, Elisa M. Miller, J. Zhang, M. C. Beard, J. Luther
Published 2015 · Materials Science, Medicine

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We developed a layer-by-layer method of preparing PbE (E = S or Se) quantum dot (QD) solar cells using metal halide (PbI2, PbCl2, CdI2, or CdCl2) salts dissolved in dimethylformamide to displace oleate surface ligands and form conductive QD solids. The resulting QD solids have a significant reduction in the carbon content compared to films treated with thiols and organic halides. We find that the PbI2 treatment is the most successful in removing alkyl surface ligands and also replaces most surface bound Cl- with I-. The treatment protocol results in PbS QD films exhibiting a deeper work function and band positions than other ligand exchanges reported previously. The method developed here produces solar cells that perform well even at film thicknesses approaching a micron, indicating improved carrier transport in the QD films. We demonstrate QD solar cells based on PbI2 with power conversion efficiencies above 7%.
This paper references
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Pietro Baldelli
Utilizing the lability of lead selenide to produce heterostructured nanocrystals with bright, stable infrared emission.
J. M. Pietryga (2008)
Steric - hindrancedriven shape transition in PbS quantum dots : Understanding sizedependent stability
H. Choi (2013)
Structural, optical, and electrical properties of self-assembled films of PbSe nanocrystals treated with 1,2-ethanedithiol.
J. Luther (2008)
The architecture of colloidal quantum dot solar cells: materials to devices.
Illan J. Kramer (2014)
Surfactant-assisted growth of CdS thin films for photovoltaic applications
C. L. Perkins (2005)
Semiconductor corelevel to valenceband maximum bindingenergy differences : Precise determination by x - ray photoelectron spectroscopy
E. A. Kraut (1983)
Highly effective surface passivation of PbSe quantum dots through reaction with molecular chlorine.
W. K. Bae (2012)
Peak External Photocurrent Quantum Efficiency Exceeding 100% via MEG in a Quantum Dot Solar Cell
Octavi E. Semonin (2011)
Nanocrystal grain growth and device architectures for high-efficiency CdTe ink-based photovoltaics.
Ryan W. Crisp (2014)
Colloidal nanocrystals with inorganic halide, pseudohalide, and halometallate ligands.
H. Zhang (2014)
Inorganic halogen ligands in quantum dots: I-, Br-, Cl- and film fabrication through electrophoretic deposition.
Guangda Niu (2013)
Semiconductor core-level to valence-band maximum binding-energy differences: Precise determination by x-ray photoelectron spectroscopy
E. A. Kraut (1983)
Size-dependent valence and conduction band-edge energies of semiconductor nanocrystals.
J. Jasieniak (2011)
Solar cells based on inks of n-type colloidal quantum dots.
Z. Ning (2014)
Steric-hindrance-driven shape transition in PbS quantum dots: understanding size-dependent stability.
Hyekyoung Choi (2013)
Enhanced mobility-lifetime products in PbS colloidal quantum dot photovoltaics.
K. S. Jeong (2012)
Understanding size-dependent stability
H. Choi (2013)
Engineering colloidal quantum dot solids within and beyond the mobility-invariant regime.
D. Zhitomirsky (2014)
Confined-but-connected quantum solids via controlled ligand displacement.
W. Baumgardner (2013)
Materials to Devices
J. Long (2017)
Photoemission spectroscopy of tethered CdSe nanocrystals: shifts in ionization potential and local vacuum level as a function of nanocrystal capping ligand.
A. M. Munro (2010)
Stoichiometric control of lead chalcogenide nanocrystal solids to enhance their electronic and optoelectronic device performance.
S. Oh (2013)
Designing high-performance PbS and PbSe nanocrystal electronic devices through stepwise, post-synthesis, colloidal atomic layer deposition.
S. Oh (2014)
Quantum dots for next-generation photovoltaics
Octavi E. Semonin (2012)
Thiocyanate-capped nanocrystal colloids: vibrational reporter of surface chemistry and solution-based route to enhanced coupling in nanocrystal solids.
Aaron T Fafarman (2011)
A generic method for rational scalable synthesis of monodisperse metal sulfide nanocrystals.
H. Zhang (2012)
Improved performance and stability in quantum dot solar cells through band alignment engineering
C. Chuang (2014)
Energy level modification in lead sulfide quantum dot thin films through ligand exchange.
P. Brown (2014)
Colloidal-quantum-dot photovoltaics using atomic-ligand passivation.
J. Tang (2011)
Lead Halide Perovskites and Other Metal Halide Complexes As Inorganic Capping Ligands for Colloidal Nanocrystals
Dmitry N Dirin (2014)
Se-octadecene suspension (Se-Sus)
Pu (2013)
Precise determination by x-ray photoelectron spectroscopy
E. A. Kraut (1983)
n-Type transition metal oxide as a hole extraction layer in PbS quantum dot solar cells.
Jianbo Gao (2011)
Hybrid passivated colloidal quantum dot solids.
A. Ip (2012)
Stoichiometry control in quantum dots: a viable analog to impurity doping of bulk materials.
J. Luther (2013)
N-type colloidal-quantum-dot solids for photovoltaics.
D. Zhitomirsky (2012)
PbSe quantum dot solar cells with more than 6% efficiency fabricated in ambient atmosphere.
J. Zhang (2014)
Diffusion-controlled synthesis of PbS and PbSe quantum dots with in situ halide passivation for quantum dot solar cells.
J. Zhang (2014)
Highly reactive, flexible yet green Se precursor for metal selenide nanocrystals: Se-octadecene suspension (Se-SUS)
Chaodan Pu (2013)

This paper is referenced by
Exceeding Conventional Photovoltaic Efficiency Limits Using Colloidal Quantum Dots
G. Pach (2017)
Compound Quantum Dot-Perovskite Optical Absorbers on Graphene Enhancing Short-Wave Infrared Photodetection.
A. A. Bessonov (2017)
Evidences of sensitization mechanism for PbSe thin films photoconductor
Y. Ren (2018)
Bright infra-red quantum dot light-emitting diodes through efficient suppressing of electrons
M. Marus (2020)
Trap-State Suppression and Improved Charge Transport in PbS Quantum Dot Solar Cells with Synergistic Mixed-Ligand Treatments.
S. Pradhan (2017)
Room temperature stable ClPrNTf2 ionic liquid utilizing for chemical sensor development
Mohammed Rahman (2016)
Improved performance of colloidal quantum dot solar cells using high-electric-dipole self-assembled layers
Randi Azmi (2017)
Inorganic dye-sensitized solar cell employing In-enriched Cu–In–S ternary colloids prepared in water media
S. Higashimoto (2015)
Colloidal quantum dot ligand engineering for high performance solar cells
R. Wang (2016)
Quasi-epitaxial Metal-Halide Perovskite Ligand Shells on PbS Nanocrystals.
M. Sytnyk (2017)
Optimization of PbS Quantum Dot Hole Transport Layer Using Hybrid Ligand Treatment
Zhi Li Teh (2018)
Hydrogen Treatment as a Detergent of Electronic Trap States in Lead Chalcogenide Nanoparticles
M. Vörös (2017)
The Frontiers of Nanomaterials (SnS, PbS and CuS) for Dye-Sensitized Solar Cell Applications: An Exciting New Infrared Material
E. Meyer (2019)
Toward Improved Scalability of Cation Exchange Reactions of Metal Chalcogenide Nanocrystals
A. Morris (2017)
Stable and efficient PbS colloidal quantum dot solar cells incorporating low-temperature processed carbon paste counter electrodes
J. An (2017)
Near‐Infrared Responsive Quantum Dot Photovoltaics: Progress, Challenges and Perspectives
Ru Zhou (2018)
Effect of “Sodium Sulfite–Ascorbic Acid” Complex Antioxidant Additive on the Composition, Structure and Semiconducting Properties of PbSe Film
L. N. Maskaeva (2020)
Probing Strongly Confined PbS Nanoplatelets with Enhanced Near-Infrared Emission by Transient Absorption Spectroscopy
F. Vázquez (2020)
Solution-processed all-inorganic bismuth-triiodide thin-films for photovoltaic application
Umar H Hamdeh (2017)
Water-mediated green synthesis of PbS quantum dot and its glutathione and biotin conjugates for non-invasive live cell imaging
M. Vijaya Bharathi (2018)
Fabrication and band engineering of Cu-doped CdSe0.6Te0.4-alloyed quantum dots for solar cells
S. Verma (2016)
Influence of the surface ligand molecules length on the optical properties and photoconductivity of PbS quantum dot condensates
M. Zvaigzne (2017)
Electronic and structural investigation of nanocrystal thin films tuned via surface chemistry
E. Ashley Gaulding (2015)
Advanced Architecture for Colloidal PbS Quantum Dot Solar Cells Exploiting a CdSe Quantum Dot Buffer Layer.
T. Zhao (2016)
Charge Transport in Trap-Sensitized Infrared PbS Quantum-Dot-Based Photoconductors: Pros and Cons
Alberto Maulu (2018)
Multiple exciton generation for photoelectrochemical hydrogen evolution reactions with quantum yields exceeding 100
Y. Yan (2017)
Fabrication of lead selenide thin film photodiode for near-infrared detection via O2-plasma treatment
Y. Ren (2018)
Electronic Processes within Quantum Dot-Molecule Complexes.
R. Harris (2016)
The interparticle distance limit for multiple exciton dissociation in PbS quantum dot solid films.
Naoki Nakazawa (2019)
Improvement of Photovoltaic Performance of Colloidal Quantum Dot Solar Cells Using Organic Small Molecule as Hole-Selective Layer.
Yaohong Zhang (2017)
A comprehensive approach for the instability of PbTe quantum dots and design of a combinatorial passivation strategy
Tugba Haciefendioglu (2020)
Highly Photoconductive InP Quantum Dots Films and Solar Cells
Ryan W. Crisp (2018)
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