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Search Publications by: Eliot Gann (Assoc)

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Displaying 26 - 38 of 38

Crucial role of fluorine in fully alkylated ladder type carbazole based nonfullerene acceptors for efficient organic solar cells

January 30, 2020
Author(s)
Eliot Gann, Christopher McNeill, He Qiao, Munazza Shahid, Xuchem Jiao, Flurin D. Eisner, Tingmang Wu, Zhuping Fei, Thomas D. Anthopoulos, Martin Heeney
Two fused ladder type nonfullerene acceptors, DTCCIC and DTCCIC-4F, based on an electron-donating core alkylated dithienocyclopentacarbazole flanked by electron-withdrawing non-fluorinated or fluorinated 1,1- dicyanomethylene-3-indanone (IC or IC-4F), are

Vapor deposition of a nonmesogen prepares highly structured organic glasses

October 22, 2019
Author(s)
Camille Bishop, Jacob L. Thelen, Eliot Gann, Michael F. Toney, Lian Yu, Dean DeLongchamp, Mark D. Ediger
We show that glasses with aligned smectic liquid crystal-like order can be produced by physical vapor deposition of a molecule without any equilibrium liquid crystal phases. Smectic-like order in vapor-deposited films was characterized by wide-angle X-ray

Stable Postfullerene Solar Cells via Direct C-H Arylation Polymerization. Morphology-Performance Relationships

May 16, 2019
Author(s)
Subhrangsu Mukherjee, Thomas Aldrich, Weigang Zhu, Lee J. Richter, Eliot Gann, Dean DeLongchamp, Antonio Facchetti, Ferdinand Melkonyan, Tobin Marks
The scope of the environmentally benign direct C-H arylation polymerization (DARP) process is validated and significantly extended in the synthesis of a high-performance benzodithiophene- based copolymer series, PBDT(Ar)-FTTE, with previously untested and

The Effects of Long Range Sidechain Ordering on Backbone Ordering and Optoelectronic Properties in Semiconducting Polymers

December 12, 2018
Author(s)
Joshua H. Carpenter, Masoud Ghasemi, Eliot Gann, Indunil Angunawela, Samuel Stuard, Liang Yan, Earl RItchie, Brendan O'Connor, Dean DeLongchamp, Harald Ade
Molecular ordering and packing greatly impacts the electronic and optoelectronic properties of semiconducting polymers. Despite much prior effort, the competing or synergistic ordering of the sidechains and aromatic cores has never been fully researched

A simple and robust approach to reducing contact resistance in organic devices

December 3, 2018
Author(s)
Lamport Zachary, Katrina Barth, Hyunsu Lee, Martin Guthold, Iain McCulloch, John E. Anthony, Lee J. Richter, Eliot Gann, Dean DeLongchamp, Oana Jurchescu
Efficient injection of charge carriers from the contacts into the semiconductor layer is crucial for achieving high-performance organic devices. The potential drop necessary to accomplish this process yields a resistance associated with the contacts

Blade Coating Aligned, High-Performance, Semiconducting-Polymer Transistors

February 22, 2018
Author(s)
Lee J. Richter, Hyun W. Ro, Regis J. Kline, Daniel A. Fischer, Dean M. DeLongchamp, Lars Thomsen, Christopher McNeil, Dawei Wu, Maria Kaplan, Eliot H. Gann
Recent demonstration of mobilities in excess of 10 cm2V-1s-1 have energized research in solution deposition of polymers for thin film transistor applications. Due to the lamella motif of most soluble, semiconducting polymers, the local mobility is