期刊
ACS APPLIED MATERIALS & INTERFACES
卷 13, 期 7, 页码 8620-8630出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c18928
关键词
hydrogen-bonded materials; self-assembly; organic semiconductors; hole-transporting materials; organic electronics; charge transport; organic field-effect transistors
资金
- Ministry of Science, Innovation and Universities (MCIU)
- Fundacion Seneca -Agencia de Ciencia y Tecnologia de la Region de Murcia
- Generalitat Valenciana
Molecular organization is crucial in determining the intermolecular interactions that govern charge transport in organic semiconductors. By strategically inducing or preventing hydrogen bonding in pyrrole-based molecules, researchers demonstrated improved stability and thermal robustness, as well as enhanced charge transport properties.
Molecular organization plays an essential role in organic semiconductors since it determines the extent of intermolecular interactions that govern the charge transport present in all electronic applications. The benefits of hydrogen bond-directed self-assembly on charge transport properties are demonstrated by comparing two analogous pyrrole-based, fused heptacyclic molecules. The rationally designed synthesis of these materials allows for inducing or preventing hydrogen bonding. Strategically located hydrogen bond donor and acceptor sites control the solid-state arrangement, favoring the supramolecular expansion of the p-conjugated surface and the subsequent pi-stacking as proved by X-ray diffraction and computational calculations. The consistency observed for the performance of organic field-effect transistors and the morphology of the organic thin films corroborate that higher stability and thermal robustness are achieved in the hydrogen-bonded material.
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