N
Neal R. Armstrong
Researcher at University of Arizona
Publications - 321
Citations - 15594
Neal R. Armstrong is an academic researcher from University of Arizona. The author has contributed to research in topics: Thin film & X-ray photoelectron spectroscopy. The author has an hindex of 65, co-authored 317 publications receiving 14689 citations. Previous affiliations of Neal R. Armstrong include University of New Mexico & Michigan State University.
Papers
More filters
Journal ArticleDOI
Interface Dipoles Arising from Self-Assembled Monolayers on Gold: UV−Photoemission Studies of Alkanethiols and Partially Fluorinated Alkanethiols
Dana M. Alloway,Michael Hofmann,Michael Hofmann,Darrin L. Smith,Nadine E. Gruhn,Amy L. Graham,Ramon Colorado,Vicki H. Wysocki,T. Randall Lee,Paul A. Lee,Neal R. Armstrong +10 more
TL;DR: In this paper, the effect of alkanethiols on the effective work function of gold surfaces was analyzed using X-ray photo-electron spectroscopy, showing an exponential decrease in emission intensity versus alkyl chain length.
Journal ArticleDOI
Characterization of Indium−Tin Oxide Interfaces Using X-ray Photoelectron Spectroscopy and Redox Processes of a Chemisorbed Probe Molecule: Effect of Surface Pretreatment Conditions
Carrie L. Donley,Darren R. Dunphy,David C. Paine,Chet Carter,Ken W. Nebesny,Paul A. Lee,Dana M. Alloway,Neal R. Armstrong +7 more
TL;DR: In this article, a monochromatic X-ray photoelectron spectroscopy (XPS) was used for surface characterization of indium−tin oxide (ITO) thin films.
Journal ArticleDOI
Evidence for near-Surface NiOOH Species in Solution-Processed NiOx Selective Interlayer Materials: Impact on Energetics and the Performance of Polymer Bulk Heterojunction Photovoltaics
Erin L. Ratcliff,Jens Meyer,K. Xerxes Steirer,Andres Garcia,Joseph J. Berry,David S. Ginley,Dana C. Olson,Antoine Kahn,Neal R. Armstrong +8 more
TL;DR: In this paper, the characterization and implementation of solution-processed, wide bandgap nickel oxide (NiOx) hole-selective interlayer materials used in bulk-heterojunction (BHJ) organic photovoltaics (OPVs) are discussed.
Journal ArticleDOI
Selective Interlayers and Contacts in Organic Photovoltaic Cells
TL;DR: The role of interface science in energy harvesting using OPVs is considered, looking back at early photoelectrochemical (photogalvanic) energy conversion platforms, which suffered from a lack of charge carrier selectivity.
Journal ArticleDOI
Enhanced Efficiency in Plastic Solar Cells via Energy Matched Solution Processed NiOx Interlayers
K. Xerxes Steirer,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 +12 more
TL;DR: In this article, a hole-transport layer (HTL) was added to the hole-collecting contact to increase the power conversion efficiency and stability of a high performance organic solar cell.