Structural and Dynamic Disorder, Not Ionic Trapping, Controls Charge Transport in Highly Doped Conducting Polymers was written by Jacobs, Ian E.;D’avino, Gabriele;Lemaur, Vincent;Lin, Yue;Huang, Yuxuan;Chen, Chen;Harrelson, Thomas F.;Wood, William;Spalek, Leszek J.;Mustafa, Tarig;O’Keefe, Christopher A.;Ren, Xinglong;Simatos, Dimitrios;Tjhe, Dion;Statz, Martin;Strzalka, Joseph W.;Lee, Jin-Kyun;McCulloch, Iain;Fratini, Simone;Beljonne, David;Sirringhaus, Henning. And the article was included in Journal of the American Chemical Society in 2022.COA of Formula: C2CuF6O6S2 This article mentions the following:
Doped organic semiconductors are critical to emerging device applications, including thermoelecs., bioelectronics, and neuromorphic computing devices. It is commonly assumed that low conductivities in these materials result primarily from charge trapping by the Coulomb potentials of the dopant counterions. Here, we present a combined exptl. and theor. study rebutting this belief. Using a newly developed doping technique based on ion exchange, we prepare highly doped films with several counterions of varying size and shape and characterize their carrier d., elec. conductivity, and paracryst. disorder. In this uniquely large data set composed of several classes of high-mobility conjugated polymers, each doped with at least five different ions, we find elec. conductivity to be strongly correlated with paracryst. disorder but poorly correlated with ionic size, suggesting that Coulomb traps do not limit transport. A general model for interacting electrons in highly doped polymers is proposed and carefully parametrized against atomistic calculations, enabling the calculation of elec. conductivity within the framework of transient localization theory. Theor. calculations are in excellent agreement with exptl. data, providing insights into the disorder-limited nature of charge transport and suggesting new strategies to further improve conductivities. In the experiment, the researchers used many compounds, for example, Copper(II) trifluoromethanesulfonate (cas: 34946-82-2COA of Formula: C2CuF6O6S2).
Copper(II) trifluoromethanesulfonate (cas: 34946-82-2) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, low toxicity and inexpensive. It is clear from the impact copper catalysis has had on organic synthesis that copper should be considered a first line catalyst for many organic reactions.COA of Formula: C2CuF6O6S2
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”