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Research

Photovoltaics, Optoelectronics, Carbon Nanotube Sensors, Environmental Contaminants, Green Polymers for the Semiconductor Industry

Photovoltaics, Optoelectronics, Carbon Nanotube Sensors, Environmental Contaminants, Green Polymers for the Semiconductor Industry

Nanocrystal Assemblies for Photovoltaics

We and our students are just beginning this new project in collaboration with Prof. Hanrath at Cornell University.  We are studying how to assemble nanomaterials into robust and scaleable structures in which they can interact in purposeful ways, and we are investigating how to control the nanocrystal interface properties to effectively transfer charges across the nanocrystal boundary.  [Profs. Goldberg (Physics), Kaplan (Chemistry and Physics), and Soltzberg (Chemistry)]

Nanocrystal Funding

Optoelectronics

Visualize a TV screen that you can roll down like a window shade. Imagine a laptop computer screen that provides clarity and true color from all angles. How about smart, safety clothing that adjusts its own brightness? Simmons undergraduates are working with faculty at Simmons College and the Cornell Center for Materials Research to make products like these a reality.

The goal is to create tiny light sources that are not only flexible, but also have long-term durability. These new devices need to surpass the durability of traditional LEDs (light emitting diodes), a staple for alarm clocks and VCR displays. Current generation light sources using organic electronics lose their brightness over time and are sensitive to air and moisture. 

The first image below shows crystals of an iridium complex synthesized at Simmons and imaged with our scanning electron microscope, and the second image depicts the device structure of an organic light-emitting diode.                                                                                                           

     

Our project, Fundamental Studies and Device Applications of Ionic Transition Metal Complexes (iTMC), funded by the National Science Foundation and in collaboration with Prof. George Malliaras at Cornell University, helps scientists understand the mechanism of operation and the relevant degradation pathways of iTMC devices. The ultimate goal is to synthesize novel iTCMs and produce devices with improved stability under minimal encapsulation conditions, and emission that covers the visible part of the spectrum. show blue emission and improved stabilityof electroluminescent iTMC (ionic transition metal complex) devices.   [Profs. Goldberg (Physics), Kaplan (Chemistry and Physics), and Soltzberg (Chemistry)]

Optoelectronics Publications

Optoelectronics Funding

Carbon Nanotube Sensors

This research focuses on functionalizing carbon nanotubes with different molecules that are receptors for others that you wish to detect--such as those of biological pathogens or harmful chemical vapors.  [Prof. Chen (Physics)]

Environmental Contaminants

This research focuses on the analysis of environmental samples collected from the air, water, and a number of other natural or laboratory sources.  [Prof. Berger (Chemistry)]

Green Polymers for the Semiconductor Industry

[Prof. Gurney (Chemistry)]


 

Optoelectronics Publications and Presentations (since 2002)

*Simmons student authors.

  • Degradation of Ir(ppy)2(dtb-bpy)PF6  iTMC OLEDs, Velda Goldberg, Michael D. Kaplan1, Leonard Soltzberg, Dolly Armira,* Megan Bigelow,* Rachel Brady,* Shannon Browne,* Bianca Dichiaro,* Heather Foley,* Lauren Hutchinson,* Alison Inglis,* Nicole Kawamoto,* Amanda McLaughlin,* Caitlin Millett,* Hanah Nasri,* Sarah Newsky,* Tram Pham,* Cassandra Saikin,* Mary Scharpf,* Melissa Trieu,* George G Malliaras, and Stefan Bernhard in Concepts in Molecular Electronics, edited by N. Koch, E. Zojer, S-W. Hla, X. Zhu, B. De Boer (Mater. Res. Soc. Symp. Proc. 1154, Warrendale, PA, 2009), B10-38.R1.                                                                                                                                                                 
  • Degradation in iTMC OLEDs, V. Goldberg, M.D. Kaplan, L.J. Soltzberg, H. Bankowski,* S. Browne,* H. Concannon,* M. Damour,* S. Green,* E. Hendrickson,* H. Huang,* V. Liu,* L. Piirainen* S. Reel,* G.G. Malliaras, J.D. Slinker, and S. Bernhard, in Interfaces in Organic and Molecular Electronics III (Mater. Res. Soc. Symp. Proc. 1029E, Warrendale, PA, 2007), F3.30. 
  • Identification of a Quenching Species in Ruthenium Tris-Bipyridine Electroluminescent Devices, Leonard J. Soltzberg, Jason D. Slinker, Samuel flores-Torres Daniel A. Bernards, George G. Malliaras, Hector D. Abruna, Ji-Seon Kim, Richard H. Friend, Michael D. Kaplan, and Velda Goldberg, J. AM. CHEM. SOC, (2006), 128, 7761-7764.
  • Women in Materials: a Collaborative Effort between Simmons College and the Cornell Center for Materials Research, Velda Goldberg, George G. Malliaras, Helene Schember Michael Kaplan, Leonard Soltzberg, Richard W. Gurney, Patrick Johnson, in Forum on Materials Science Education, edited by Trevor R. Finlayson,Fiona M. Goodchild, M. Grant Norton, Scott R. J. Oliver (Mater. Res. Soc. Symp. Proc. 909E, Warrendale, PA, 2006), 0909-PP03-10.
  • Electroluminescent Devices from Ionic Transition Metal Complexes for Lighting Applications, Jason Slinker, Jonathan Rivnay, John DeFranco, Samuel Flores-Torres, Michael Lowry, Karl Oyler, Daniel Bernards, Leonard Soltzberg, Velda Goldberg, Michael Kaplan, Stefan Bernhard, Hector Abruna and George Malliaras, Symposium D: Degradation of Small-Molecule Organic Light Emitting Devices (Mater. Res. Soc. Fall 2005), D2.7. (talk given by Jason Slinker.)
  • Degradation of Small-Molecule Organic Light Emitting Devices, Jason Slinker, Samuel Flores-Torres, Daniel Bernards, Leonard Soltzberg, Ji-Seon Kim, Velda Goldberg, Michael Kaplan, Richard Friend, Hector Abruna and George Malliaras, Symposium M: Conjugated Organic Materials - Synthesis, Structure, Device, and Applications (Mater. Res. Soc. Spring 2006), M7.7. (poster presentation)
  • Funding for Educational Innovations in Materials: Rosemary Haggett (National Science Foundation), Velda Goldberg (Simmons College), Laura Bartolo (Kent State University), Moderator: David F. Bahr (Washington State University), Session PP2. (Mater. Res. Soc. Fall 2005). (panel presentation)
  • Degradation of Ru(bpy)32+-based OLEDs, Velda Goldberg, Michael Kaplan, Leonard Soltzberg, Joseph Genevich, Rebecca Berry,* Alma Bukhari,* Sherina Chan,* Megan Damour,* Leigh Frigugliett,i* Erica Gunn,* Karen Ho,* Ashley Johnson,* Yin Yin Lin,* Alisabet Lowenthal,* Seiyam Suth,* Regina To,* Regina Yopak,* Jason D. Slinker, George G. Malliaras, Samuel Flores-Torres, and Hector D. Abruna, in Organic and Nanocomposite Optical Materials, edited by Alexander Cartwright, Thomas M. Cooper, Shashi P. Karna, and Hachiro Nakanishi (Mater. Res. Soc. Symp. Proc. 846, Warrendale, PA, 2005), DD11.11.1.
  • Variation in the Electrical Characteristics of Al/Polythiophene Interfaces Due to Preparation Conditions and Aging, Velda Goldberg, Michael Kaplan, Leonard Soltzberg, Joseph Genevich, Shari Benson,* Alsion Bergeron,* Emily Coombs,* Andrea Higdon,* Casey Gifford,* Erica Gunn,* Amanda Hagar,* Colleen Harty,* Diana Ouellette,* Eleana Pham,* Lisa Torgersen,* and George Malliaras, Symposium J: Interfaces in Organic and Molecular Electronics, Materials Research Society Meeting, Boston, MA, December 2003. (poster presentation)
  • Current-Induced Degradation in Polythiophene, Velda Goldberg, Michael Kaplan, Leonard Soltzberg, Joseph Genevich, Emily Coombs,* Casey Gifford,* Amanda Hagar,* Colleen Harty,* Andrea Higdon,* Azra Idrizovic,* Diana Ouellette,* Eleana Pham,* Jessica Queen,* Lisa Torgersen,* and George Malliaras, in Polymer/Metal Interfaces and Defect Mediated Phenomena in Ordered Polymers, edited by Evangelos Manias and George Malliaras (Mater. Res. Soc. Symp. Proc. 734, Pittsburgh, Pennsylvania, 2003), B9.4.
  • PUI/MRSEC Collaboration to Create Opportunities for Women in Materials-Research, Velda Goldberg, Michael Kaplan, Leonard Soltzberg, George Malliaras, Helene Schember, and Nevjinder Singhota, Journal of Materials Education, (2003), 25, 79-84.
  • Using outreach to help meet science and technology standards, Velda Goldberg, American Association for the Advancement of Science Annual Meeting, Boston, MA, February 17, 2002. (poster presentation)
  • Enhancing women's undergraduate experience in physics and chemistry through a PUI/MERSEC collaboration emphasizing materials research, Velda Goldberg, George Malliaras, Helene Schember, and Nevjinder Singhota, American Physical Society April Meeting, Albuquerque, NM, April 23, 2002. (poster presentation)
  • Creating opportunities for women in materials research, Velda Goldberg, Michael Kaplan, Leonard Soltzberg, George Malliaras, Helene Schember, Nevjinder Singhota, Materials Education: Opportunities Over a Lifetime Conference, University of Maryland, College Park, MD, May 20-21, 2002. (poster presentation)
  • Reaching elementary school children: face to face with science and technology kits, Velda Goldberg, Materials Education: Opportunities Over a Lifetime Conference, College Park, MD, May 20-21, 2002. (poster presentation)
  • College/university collaborative research in optoelectronics: women in materials, V. Goldberg, M. Kaplan, L. Soltzberg, T. Andelman,* E. Coombs,* E. Giacomozzi,* V. Kwasnik,* S. Naeem,* and E. Pham,* Council on Undergraduate Research National Conference, Connecticut College, June 19-22, 2002.

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 Nanocrystal Funding

  • Processing-structure Relationships of Lead Salt Nanocrystal Superlattices and Their Photovoltaic PerformanceNational Science Foundation
    National Science Foundation 
    2010-2013 
    $323,900                                                                                                                                                                                                                    (Cornell University,  Simmons College)  -   Pending 

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Optoelectronics Funding Since 2001

  • Fundamental Studies and Device Applications of Ionic Transition Metal Complexes
    National Science Foundation
    2006-2009
    $946,770
    (Cornell University, Princeton University, Simmons College)
  • PUI/MRSEC Collaboration to Create Opportunities for Women in Materials Research
    National Science Foundation
    2001-2004
    $430,000                                                                                                                                                                                                                  (Simmons College and Cornell University)
  • Scanning Electron Microscope and Student Research Boston Scientific Corporation
    2002-2003
    $100,000                                                                                                                                                                                                            (Simmons College)
  • Atomic Force Microscope Alden Trust
    2001-2002
    $100,000                                                                                                                                                                                                                          (Simmons College)
  • Maldi-Tof Mass Spectrometer
    National Science Foundation
    2001-2002
    $182,000                                                                                                                                                                                                                                 (Simmons College)

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