The promotion effects of thionation and isomerization on charge carrier mobility in naphthalene diimide crystals

Literature Information

Publication Date 2017-09-20
DOI 10.1039/C7CP03787B
Impact Factor 3.676
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Abstract

Herein, the promotion effects of thionation and isomerization on the carrier mobility properties of naphthalene diimide and thionated naphthalene diimide crystals were investigated in detail based on the Marcus–Hush theory and quantum-chemical calculations. The thionation of NDIs will improve the charge mobility of both electrons and holes, which is similar to the thionation of PDIs. The compound P only behaves as an n-type organic semiconductor (OSC), whereas the three other thionation structures have higher mobility values and can behave as p-type OSCs. For the cis/trans isomers of the two double-thionation structures, trans-S2 has a larger hole and electron carrier mobility than cis-S2; this is consistent with the experimental results obtained for cis–trans-isomers. A potential strategy for the development of high performance ambipolar OSCs is the substitution of O atoms by S atoms. These results will provide a guide for the design and optimization of OSCs via analysis of the relationship between carrier mobility and molecular crystal structures.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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