skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Secondary treatment of films of colloidal quantum dots for optoelectronics and devices produced thereby

Abstract

A method of forming an optoelectronic device. The method includes providing a deposition surface and contacting the deposition surface with a ligand exchange chemical and contacting the deposition surface with a quantum dot (QD) colloid. This initial process is repeated over one or more cycles to form an initial QD film on the deposition surface. The method further includes subsequently contacting the QD film with a secondary treatment chemical and optionally contacting the surface with additional QDs to form an enhanced QD layer exhibiting multiple exciton generation (MEG) upon absorption of high energy photons by the QD active layer. Devices having an enhanced QD active layer as described above are also disclosed.

Inventors:
; ; ;
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1129017
Patent Number(s):
8,685,781
Application Number:
13/187,276
Assignee:
Alliance for Sustainable Energy, LLC (Golden, CO)
DOE Contract Number:  
AC36-080028308
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Jul 20
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Semonin, Octavi Escala, Luther, Joseph M, Beard, Matthew C, and Chen, Hsiang-Yu. Secondary treatment of films of colloidal quantum dots for optoelectronics and devices produced thereby. United States: N. p., 2014. Web.
Semonin, Octavi Escala, Luther, Joseph M, Beard, Matthew C, & Chen, Hsiang-Yu. Secondary treatment of films of colloidal quantum dots for optoelectronics and devices produced thereby. United States.
Semonin, Octavi Escala, Luther, Joseph M, Beard, Matthew C, and Chen, Hsiang-Yu. Tue . "Secondary treatment of films of colloidal quantum dots for optoelectronics and devices produced thereby". United States. https://www.osti.gov/servlets/purl/1129017.
@article{osti_1129017,
title = {Secondary treatment of films of colloidal quantum dots for optoelectronics and devices produced thereby},
author = {Semonin, Octavi Escala and Luther, Joseph M and Beard, Matthew C and Chen, Hsiang-Yu},
abstractNote = {A method of forming an optoelectronic device. The method includes providing a deposition surface and contacting the deposition surface with a ligand exchange chemical and contacting the deposition surface with a quantum dot (QD) colloid. This initial process is repeated over one or more cycles to form an initial QD film on the deposition surface. The method further includes subsequently contacting the QD film with a secondary treatment chemical and optionally contacting the surface with additional QDs to form an enhanced QD layer exhibiting multiple exciton generation (MEG) upon absorption of high energy photons by the QD active layer. Devices having an enhanced QD active layer as described above are also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {4}
}

Patent:

Save / Share:

Works referenced in this record:

Materials, Systems and Methods for Optoelectronic Devices
patent-application, July 2010


Comparing Multiple Exciton Generation in Quantum Dots To Impact Ionization in Bulk Semiconductors: Implications for Enhancement of Solar Energy Conversion
journal, August 2010

  • Beard, Matthew C.; Midgett, Aaron G.; Hanna, Mark C.
  • Nano Letters, Vol. 10, Issue 8
  • DOI: 10.1021/nl101490z

Third generation photovoltaics: Multiple Exciton Generation in colloidal quantum dots, quantum dot arrays, and quantum dot solar cells
conference, June 2010

  • Beard, Matthew C.; Luther, Joseph M.; Midgett, Aaron G.
  • 2010 35th IEEE Photovoltaic Specialists Conference (PVSC)
  • DOI: 10.1109/PVSC.2010.5616850

Multiple Exciton Generation in Semiconductor Quantum Dots
journal, May 2011

  • Beard, Matthew C.
  • The Journal of Physical Chemistry Letters, Vol. 2, Issue 11
  • DOI: 10.1021/jz200166y

Multiple exciton generation in nanocrystal quantum dots – controversy, current status and future prospects
journal, January 2011

  • Binks, David J.
  • Physical Chemistry Chemical Physics, Vol. 13, Issue 28
  • DOI: 10.1039/c1cp20225a

PbSe Nanocrystal Excitonic Solar Cells
journal, November 2009

  • Choi, Joshua J.; Lim, Yee-Fun; Santiago-Berrios, Mitk’El B.
  • Nano Letters, Vol. 9, Issue 11
  • DOI: 10.1021/nl901930g

Schottky barriers to colloidal quantum dot films
journal, December 2007

  • Clifford, Jason P.; Johnston, Keith W.; Levina, Larissa
  • Applied Physics Letters, Vol. 91, Issue 25
  • DOI: 10.1063/1.2823582

Charge injection and transport in films of CdSe nanocrystals
journal, February 2000

  • Ginger, D. S.; Greenham, N. C.
  • Journal of Applied Physics, Vol. 87, Issue 3
  • DOI: 10.1063/1.372021

Patterned Langmuir−Blodgett Films of Monodisperse Nanoparticles of Iron Oxide Using Soft Lithography
journal, January 2003

  • Guo, Qijie; Teng, Xiaowei; Rahman, Saifur
  • Journal of the American Chemical Society, Vol. 125, Issue 3
  • DOI: 10.1021/ja0275764

Air-Stable All-Inorganic Nanocrystal Solar Cells Processed from Solution
journal, October 2005

  • Gur, Ilan; Fromer, Neil A.; Geier, Michael L.
  • Science, Vol. 310, Issue 5747, p. 462-465
  • DOI: 10.1126/science.1117908

Controlled Assembly of Hybrid Bulk−Heterojunction Solar Cells by Sequential Deposition
journal, December 2006

  • Gur, Ilan; Fromer, Neil A.; Alivisatos, A. Paul
  • The Journal of Physical Chemistry B, Vol. 110, Issue 50
  • DOI: 10.1021/jp0652852

Colloidal PbS Nanocrystals with Size-Tunable Near-Infrared Emission: Observation of Post-Synthesis Self-Narrowing of the Particle Size Distribution
journal, November 2003

  • Hines, M. A.; Scholes, G. D.
  • Advanced Materials, Vol. 15, Issue 21, p. 1844-1849
  • DOI: 10.1002/adma.200305395

Charge transport in hybrid nanorod-polymer composite photovoltaic cells
journal, March 2003


PbSe nanocrystal/conducting polymer solar cells with an infrared response to 2 micron
journal, August 2007

  • Jiang, Xiaomei; Schaller, Richard D.; Lee, Sergey B.
  • Journal of Materials Research, Vol. 22, Issue 8
  • DOI: 10.1557/jmr.2007.0289

Colloidal nanocrystal solar cells
journal, July 2007


Size Dependence of the Multiple Exciton Generation Rate in CdSe Quantum Dots
journal, March 2011

  • Lin, Zhibin; Franceschetti, Alberto; Lusk, Mark T.
  • ACS Nano, Vol. 5, Issue 4
  • DOI: 10.1021/nn200141f

Solar Cells Based on Quantum Dots: Multiple Exciton Generation and Intermediate Bands
journal, March 2007

  • Luque, Antonio; Martí, Antonio; Nozik, Arthur J.
  • MRS Bulletin, Vol. 32, Issue 3
  • DOI: 10.1557/mrs2007.28

Schottky Solar Cells Based on Colloidal Nanocrystal Films
journal, October 2008

  • Luther, Joseph M.; Law, Matt; Beard, Matthew C.
  • Nano Letters, Vol. 8, Issue 10
  • DOI: 10.1021/nl802476m

Multiple Exciton Generation in Films of Electronically Coupled PbSe Quantum Dots
journal, June 2007

  • Luther, Joseph M.; Beard, Matthew C.; Song, Qing
  • Nano Letters, Vol. 7, Issue 6
  • DOI: 10.1021/nl0708617

Stability Assessment on a 3% Bilayer PbS/ZnO Quantum Dot Heterojunction Solar Cell
journal, August 2010

  • Luther, Joseph M.; Gao, Jianbo; Lloyd, Matthew T.
  • Advanced Materials, Vol. 22, Issue 33, p. 3704-3707
  • DOI: 10.1002/adma.201001148

Structural, Optical, and Electrical Properties of Self-Assembled Films of PbSe Nanocrystals Treated with 1,2-Ethanedithiol
journal, January 2008

  • Luther, Joseph M.; Law, Matt; Song, Qing
  • ACS Nano, Vol. 2, Issue 2
  • DOI: 10.1021/nn7003348

Time-Resolved Photoconductivity of PbSe Nanocrystal Arrays
journal, December 2006

  • Murphy, James E.; Beard, Matthew C.; Nozik, Arthur J.
  • The Journal of Physical Chemistry B, Vol. 110, Issue 50
  • DOI: 10.1021/jp0646123

Semiconductor Quantum Dots and Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells
journal, November 2010

  • Nozik, A. J.; Beard, M. C.; Luther, J. M.
  • Chemical Reviews, Vol. 110, Issue 11
  • DOI: 10.1021/cr900289f

Quantum dot solar cells
journal, April 2002


Multiple exciton generation in semiconductor quantum dots
journal, May 2008


Multiple exciton generation in semiconductor quantum dots and novel molecules: Applications to third generation solar photon conversion:
conference, February 2008

  • Nozik, A. J.
  • 2008 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF)
  • DOI: 10.1109/ISAF.2008.4693953

PbSe Nanocrystal Solids for n- and p-Channel Thin Film Field-Effect Transistors
journal, October 2005


Organized Mesoporous TiO 2 Films Exhibiting Greatly Enhanced Performance in Dye-Sensitized Solar Cells
journal, September 2005

  • Zukalová, Markéta; Zukal, Arnošt; Kavan, Ladislav
  • Nano Letters, Vol. 5, Issue 9
  • DOI: 10.1021/nl051401l