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

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

Patent · 01 April 2014

OSTI ID:1129017

Semonin, Octavi Escala; Luther, Joseph M; Beard, Matthew C; Chen, Hsiang-Yu

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.

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Research Organization:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States)

Sponsoring Organization:: USDOE

Assignee:: Alliance for Sustainable Energy, LLC (Golden, CO)

Patent Number(s):: 8,685,781

Application Number:: 13/187,276

OSTI ID:: 1129017

Country of Publication:: United States

Language:: English

References (27)

Semiconductor Quantum Dots and Quantum Dot Arrays and Applications of Multiple Exciton Generation to Third-Generation Photovoltaic Solar Cells Nozik, A. J.; Beard, M. C.; Luther, J. M. Chemical Reviews, Vol. 110, Issue 11 https://doi.org/10.1021/cr900289f	journal	November 2010
Multiple Exciton Generation in Films of Electronically Coupled PbSe Quantum Dots Luther, Joseph M.; Beard, Matthew C.; Song, Qing Nano Letters, Vol. 7, Issue 6 https://doi.org/10.1021/nl0708617	journal	June 2007
Schottky barriers to colloidal quantum dot films Clifford, Jason P.; Johnston, Keith W.; Levina, Larissa Applied Physics Letters, Vol. 91, Issue 25 https://doi.org/10.1063/1.2823582	journal	December 2007
Size Dependence of the Multiple Exciton Generation Rate in CdSe Quantum Dots Lin, Zhibin; Franceschetti, Alberto; Lusk, Mark T. ACS Nano, Vol. 5, Issue 4 https://doi.org/10.1021/nn200141f	journal	March 2011
Stability Assessment on a 3% Bilayer PbS/ZnO Quantum Dot Heterojunction Solar Cell Luther, Joseph M.; Gao, Jianbo; Lloyd, Matthew T. Advanced Materials, Vol. 22, Issue 33, p. 3704-3707 https://doi.org/10.1002/adma.201001148	journal	August 2010
Multiple exciton generation in semiconductor quantum dots Nozik, Arthur J. Chemical Physics Letters, Vol. 457, Issue 1-3, p. 3-11 https://doi.org/10.1016/j.cplett.2008.03.094	journal	May 2008
Comparing Multiple Exciton Generation in Quantum Dots To Impact Ionization in Bulk Semiconductors: Implications for Enhancement of Solar Energy Conversion Beard, Matthew C.; Midgett, Aaron G.; Hanna, Mark C. Nano Letters, Vol. 10, Issue 8 https://doi.org/10.1021/nl101490z	journal	August 2010
Charge injection and transport in films of CdSe nanocrystals Ginger, D. S.; Greenham, N. C. Journal of Applied Physics, Vol. 87, Issue 3 https://doi.org/10.1063/1.372021	journal	February 2000
Multiple Exciton Generation in Semiconductor Quantum Dots Beard, Matthew C. The Journal of Physical Chemistry Letters, Vol. 2, Issue 11 https://doi.org/10.1021/jz200166y	journal	May 2011
Multiple exciton generation in semiconductor quantum dots and novel molecules: Applications to third generation solar photon conversion: Nozik, A. J. 2008 17th IEEE International Symposium on the Applications of Ferroelectrics (ISAF) https://doi.org/10.1109/ISAF.2008.4693953	conference	February 2008
Third generation photovoltaics: Multiple Exciton Generation in colloidal quantum dots, quantum dot arrays, and quantum dot solar cells Beard, Matthew C.; Luther, Joseph M.; Midgett, Aaron G. 2010 35th IEEE Photovoltaic Specialists Conference (PVSC) https://doi.org/10.1109/PVSC.2010.5616850	conference	June 2010
Organized Mesoporous TiO ₂ Films Exhibiting Greatly Enhanced Performance in Dye-Sensitized Solar Cells Zukalová, Markéta; Zukal, Arnošt; Kavan, Ladislav Nano Letters, Vol. 5, Issue 9 https://doi.org/10.1021/nl051401l	journal	September 2005
Air-Stable All-Inorganic Nanocrystal Solar Cells Processed from Solution Gur, Ilan; Fromer, Neil A.; Geier, Michael L. Science, Vol. 310, Issue 5747, p. 462-465 https://doi.org/10.1126/science.1117908	journal	October 2005
Structural, Optical, and Electrical Properties of Self-Assembled Films of PbSe Nanocrystals Treated with 1,2-Ethanedithiol Luther, Joseph M.; Law, Matt; Song, Qing ACS Nano, Vol. 2, Issue 2 https://doi.org/10.1021/nn7003348	journal	January 2008
Multiple exciton generation in nanocrystal quantum dots – controversy, current status and future prospects Binks, David J. Physical Chemistry Chemical Physics, Vol. 13, Issue 28 https://doi.org/10.1039/c1cp20225a	journal	January 2011
Colloidal nanocrystal solar cells Kumar, Sandeep; Scholes, Gregory D. Microchimica Acta, Vol. 160, Issue 3 https://doi.org/10.1007/s00604-007-0806-z	journal	July 2007
PbSe Nanocrystal Excitonic Solar Cells Choi, Joshua J.; Lim, Yee-Fun; Santiago-Berrios, Mitk’El B. Nano Letters, Vol. 9, Issue 11 https://doi.org/10.1021/nl901930g	journal	November 2009
Controlled Assembly of Hybrid Bulk−Heterojunction Solar Cells by Sequential Deposition ^† Gur, Ilan; Fromer, Neil A.; Alivisatos, A. Paul The Journal of Physical Chemistry B, Vol. 110, Issue 50 https://doi.org/10.1021/jp0652852	journal	December 2006
Quantum dot solar cells Nozik, A. J. Physica E: Low-dimensional Systems and Nanostructures, Vol. 14, Issue 1-2, p. 115-120 https://doi.org/10.1016/S1386-9477(02)00374-0	journal	April 2002
Charge transport in hybrid nanorod-polymer composite photovoltaic cells Huynh, Wendy U.; Dittmer, Janke J.; Teclemariam, Nerayo Physical Review B, Vol. 67, Issue 11 https://doi.org/10.1103/PhysRevB.67.115326	journal	March 2003
Patterned Langmuir−Blodgett Films of Monodisperse Nanoparticles of Iron Oxide Using Soft Lithography Guo, Qijie; Teng, Xiaowei; Rahman, Saifur Journal of the American Chemical Society, Vol. 125, Issue 3 https://doi.org/10.1021/ja0275764	journal	January 2003
Colloidal PbS Nanocrystals with Size-Tunable Near-Infrared Emission: Observation of Post-Synthesis Self-Narrowing of the Particle Size Distribution Hines, M. A.; Scholes, G. D. Advanced Materials, Vol. 15, Issue 21, p. 1844-1849 https://doi.org/10.1002/adma.200305395	journal	November 2003
Time-Resolved Photoconductivity of PbSe Nanocrystal Arrays ^† Murphy, James E.; Beard, Matthew C.; Nozik, Arthur J. The Journal of Physical Chemistry B, Vol. 110, Issue 50 https://doi.org/10.1021/jp0646123	journal	December 2006
Solar Cells Based on Quantum Dots: Multiple Exciton Generation and Intermediate Bands Luque, Antonio; Martí, Antonio; Nozik, Arthur J. MRS Bulletin, Vol. 32, Issue 3 https://doi.org/10.1557/mrs2007.28	journal	March 2007
PbSe nanocrystal/conducting polymer solar cells with an infrared response to 2 micron Jiang, Xiaomei; Schaller, Richard D.; Lee, Sergey B. Journal of Materials Research, Vol. 22, Issue 8 https://doi.org/10.1557/jmr.2007.0289	journal	August 2007
Schottky Solar Cells Based on Colloidal Nanocrystal Films Luther, Joseph M.; Law, Matt; Beard, Matthew C. Nano Letters, Vol. 8, Issue 10 https://doi.org/10.1021/nl802476m	journal	October 2008
PbSe Nanocrystal Solids for n- and p-Channel Thin Film Field-Effect Transistors Talapin, D. V. Science, Vol. 310, Issue 5745, p. 86-89 https://doi.org/10.1126/science.1116703	journal	October 2005

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