Brian Zacher, Jeremy L. Gantz, Robin E. Richards, Neal R. Armstrong, J. Phys. Chem. Lett. 2013, 4(11), 1949−1952. “Organic Solar Cells–At the Interface.”
Neal Armstrong
EFRC Title:
Director
Title:
Regents' Professor
Department:
Chemistry & Biochemistry
Institution:
University of Arizona Biography:
Professor of Chemistry & Biochemistry and Optical Sciences at the University of Arizona since 1978. Professor Armstrong's research interests include the interface science of solar energy conversion and energy storage materials, surface and interface characterization using photoemission spectroscopies and scanning probe microscopies, electrochemistry, and the development and characterization of new solar energy conversion platforms.
Publications funded as part of CISSEM
Kai-Lin Ou, Delvin Tadytin, K. Xerxes Steirer, Diogenes Placencia, Michael Nguyen, Paul A. Lee, Neal R Armstrong, J. Mater. Chem. A, 2013, 1 (23), 6794-6803. "Titanium Dioxide Electron-Selective Interlayers Created by Chemical Vapor Deposition for Inverted Configuration Organic Solar Cells."
10.1039/C3TA10894E
Jeremy Gantz, Diogenes Placencia, Anthony J Giordano, Seth R. Marder, and Neal R. Armstrong, J. Phys. Chem. C, 2013, 117(3), 1205-1216. "Influence of Electrode Surface Composition and Energetics on Small-Molecule Organic Solar Cell Performance: Polar Versus Non-Polar Donors on ITO Contacts.
10.1021/jp307546v
Paul F. Ndione, Andres Garcia, N. Edwin Widjonarko, Ajaya K. Sigdel, K. Xerxes Steirer, Dana C. Olson, Philip A. Parilla, David S. Ginley, Neal R. Armstrong, Robin E. Richards, Erin L. Ratcliff, Joseph J. Berry, Adv. Energy Mater., 2013, 3(4), 524–531. "Highly-Tunable Nickel Cobalt Oxide as a Low-Temperature P-Type Contact in Organic Photovoltaic Devices."
10.1002/aenm.201200742
Gordon A. MacDonald , P. Alex Veneman , Diogenes Placencia , and Neal R. Armstrong, ACS Nano, 2012, 6 (11), 9623–9636. "Electrical Property Heterogeneity At Transparent Conductive Oxide/Organic Semiconductor Interfaces: Mapping Contact Ohmicity Using Conducting-Tip Atomic Force Microscopy."
10.1021/nn303043y
Ratcliff, E.L.; Garcia, A.; Cowan, S.R.; Meyer, J.; Steirer, K.X.; Paniagua, S.A.; Giordano, A.; Marder, S.; Armstrong, N.R.; Kahn, Antoine; Ginley, D.; Olson, D.C. Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE ,003377-003379, 3-8 June 2012. "Understanding Energy Level Alignment in PCDTBT:PC70BM Solar Cells."
10.1109/PVSC.2012.6318295
Erin L. Ratcliff, Ajaya K. Sigdel, Mariola R. Macech, Kenneth Nebesny, Paul A. Lee, David S. Ginley, Neal R. Armstrong, Joseph J. Berry, Thin Solid Films, 2012, 520(17), 5652–5663. "Surface composition, work function, and electrochemical characteristics of gallium-doped zinc oxide."
10.1016/j.tsf.2012.04.038
Bradley A. MacLeod, Noah Elliott Horwitz, Erin L Ratcliff, Judith L. Jenkins, Neal R. Armstrong, Anthony J. Giordano, Peter J. Hotchkiss, Seth R. Marder, Charles T Campbell, David S Ginger, J. Phys. Chem. Lett., 2012, 3(9), 1202–1207. “Built-in Potential in Conjugated Polymer Diodes with Changing Anode Work Function: Interfacial States and Deviation from the Schottky-Mott Limit”
10.1021/jz300283h
Hsiao-Chu Lin, Nathan W. Polaske, Luis E. Oquendo, Matthew Gliboff, Kristina M. Knesting, Dennis Nordlund, David S. Ginger, Erin L. Ratcliff, Brooke M. Beam, Neal R. Armstrong, Dominic V. McGrath, S. Scott Saavedra, J. Phys. Chem. Lett., 2012, 3, 1154–1158. "Electron-Transfer Processes in Zinc Phthalocyanine–Phosphonic Acid Monolayers on ITO: Characterization of Orientation and Charge-Transfer Kinetics by Waveguide Spectroelectrochemistry."
10.1021/jz3002426
Erin L. Ratcliff, Jens Meyer, K. Xerxes Steirer, Neal R. Armstrong, Dana Olson, Antoine Kahn, Organic Electronics, 2012, 13(5), 744-749. "Energy level alignment in PCDTBT:PC70BM solar cells: Solution processed NiOx for improved hole collection and efficiency."
10.1016/j.orgel.2012.01.022
Natalia V Doubina, Judith L. Jenkins, Sergio Paniagua, Katherine A. Mazzio, Gordon A MacDonald, Alex K-Y. Jen, Neal R. Armstrong, Seth R. Marder, Christine K. Luscombe, Langmuir, 2012, 28 (3), 1900–1908. "Surface-Initiated Synthesis of Poly(3-methylthiophene) from Indium Tin Oxide and its Electrochemical Properties."
10.1021/la204117u
Brian Zacher and Neal R. Armstrong, J. Phys. Chem. C, 2011, 115 (51), 25496–25507. "Modeling the Effects of Molecular Length Scale Electrode Heterogeneity in Organic Solar Cells."
10.1021/jp207471f
Nathan W Polaske, Hsiao-Chu Lin, Anna Tang, Mayank Mayukh, Luis E. Oquendo, John T. Green, Erin L Ratcliff, Neal R. Armstrong, Scott Saavedra, Dominic V. McGrath, Langmuir, 2011, 27 (24), 14900–14909. "Phosphonic Acid Functionalized Asymmetric Phthalocyanines: Synthesis, Modification of Indium Tin Oxide (ITO), and Charge Transfer."
10.1021/la203126c
Erin L. Ratcliff, Jens Meyer, K. Xerxes Steirer, Andres Garcia, Joseph J. Berry, David S. Ginley, Dana C. Olson, Antoine Kahn, Neal R. Armstrong, Chem. Mater., 2011, 23 (22), 4988–5000. "Evidence for near-Surface NiOOH Species in Solution-Processed NiOx Selective Interlayer Materials: Impact on Energetics and the Performance of Polymer Bulk Heterojunction Photovoltaics."
10.1021/cm202296p
Peter J. Hotchkiss, Simon C. Jones, Sergio A. Paniagua, Asha Sharma, Bernard Kippelen, Neal R. Armstrong, and Seth R. Marder, Acc. Chem. Res., 2012, 45 (3), 337-346. "The Modification of Indium Tin Oxide with Phosphonic Acids: Mechanism of Binding, Tuning of Surface Properties, and Potential for Use in Organic Electronic Applications."
10.1021/ar200119g
Diogenes Placencia, Weining Wang, Jeremy Gantz, Judith L. Jenkins, Neal R. Armstrong, J. Phys. Chem. C, 2011, 115(38), 18873-18884. “Highly Photoactive Titanyl Phthalocyanine Polymorphs as Textured Donor Layers in Organic Solar Cells.”
10.1021/jp2052085
K. Xerxes Steirer, Paul F. Ndione, N. Edwin Widjonarko, Matthew T. Lloyd, Jens Meyer, Erin L. Ratcliff, Antoine Kahn, Neal R. Armstrong, Calvin J. Curtis, David S. Ginley, Joseph J. Berry, Dana C. Olson, Adv. Energy. Mater., 2011, 1(5), 813-820. "Enhanced Efficiency in Plastic Solar Cells via Energy Matched Solution Processed NiOx Interlayers"
10.1002/aenm.201100234
Erin L. Ratcliff, Brian Zacher, Neal R. Armstrong, J. Phys. Chem. Lett., 2011, 2(11), 1337–1350.
"Perspective - Selective Interlayers and Contacts in Organic Photovoltaic Cells."
10.1021/jz2002259
Peter J. Hotchkiss, Michał Malicki, Anthony J. Giordano, Neal R. Armstrong, and Seth R. Marder, J. Mater. Chem., 2011, 21, 3107-3112. “Characterization of phosphonic acid binding to zinc oxide.”
10.1039/C0JM02829K
Neal R. Armstrong, Diogenes Placencia, Derek Manglesdorf, Weining Wang, 35th IEEE Photovoltaic Specialists Conference (PVSC), 2010, 000503 - 000507. “Small molecule organic solar cells with enhanced near-IR photoactivity: The role of texturing and molecular architecture of the active layers on solar cell performance.”
10.1109/PVSC.2010.5616797
