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Search Publications by: Andrew Herzing (Fed)

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Displaying 26 - 50 of 161

Crystallography, Morphology, Electronic Structure, and Transport in Non-Fullerene/Non-Indacenodithienothiophene Polymer:Y6 Solar Cells

July 22, 2020
Author(s)
Weigang Zhu, Subhrangsu Mukherjee, Joaquin Alzola, Vinod K. Sangwan, Samuel H. Amsterdam, Steven M. Swick, Leighton Jones, Michael Heiber, Guoping Li, Kevin L. Kohlstedt, Charlotte Stern, Dean DeLongchamp, Mark C. Hersam, George C. Schatz, Michael R. Wasielewski, Antonio Facchetti, Andrew Herzing, Lin Chen, Tobin Marks
Emerging nonfullerene acceptors (NFAs) with crystalline domains enable high-performance bulk heterojunction (BHJ) solar cells. Thermal annealing is known to enhance the BHJ photoactive layer morphology and performance. However, the microscopic mechanism of

Influence of Polymer Aggregation and Liquid Immiscibility on Morphology Tuning by Varying Composition in PffBT4T-2DT/Non-Fullerene Organic Solar Cells

January 29, 2020
Author(s)
Subhrangsu Mukherjee, Dean M. DeLongchamp, Regis J. Kline, Iain McCulloch, Zeinab Hamid, Andrew Wadsworth, Elham Rezasoltani, Sarah Holliday, Mohammed Azzouzi, Anne Guilbert, Yifan Dong, Marios Neophytou, Mark Little, Helen Bristow, Artem Bakulin, James Durrant, Jenny Nelson, Andrew A. Herzing
The temperature dependent aggregation behavior of PffBT4T polymers used in organic solar cells plays a critical role in the formation of a favorable morphology in fullerene-based devices. However, there has been little investigation into the impact of

Enzyme-Inspired Microporous Polymer Layers Determine the Reactivity of Encapsulated Metallic Surfaces

August 5, 2019
Author(s)
Andrew Herzing, Andrew Riscoe, Cody Wrasman, Adam Hoffman, Aditya Menon, Alexey Boubnov, Maria Vargas, Simon Bare, Matteo Cargnello
Enzymes are natural catalysts that govern precise, biological chemistry through accurate control of transport and activation of species within three-dimensional active sites, but their use in industrial applications is limited by their stability1

Correlating anisotropic mobility and intermolecular phonons in organic semiconductors to investigate transient localization

March 19, 2019
Author(s)
Emily G. Bittle, Adam J. Biacchi, Lisa A. Fredin, Andrew A. Herzing, Thomas C. Allison, Angela R. Hight Walker, David J. Gundlach
Charge transport in organic semiconductors is governed by a mix of polaron hopping and band- like transport mechanisms. The energy of polaron hopping and formation are similar in magnitude to the energies of inter- and intra- molecular modes, which points

A workshop report on “Electron Microscopy Frontiers: Challenges and Opportunities”

December 21, 2017
Author(s)
June W. Lau, John E. Bonevich, Andrew A. Herzing, Ann C. Chiaramonti Debay, Robert R. Keller
For two days beginning on March 8, 2017, a planning workshop entitled “Electron Microscopy Frontiers: Opportunities and Challenges” was hosted by the Material Measurement Laboratory (MML) of the National Institute of Standards and Technology (NIST). Grass