Significance of secondary forces toward improving the charge carrier mobility of Isoindigo based conjugated small molecules

Satej S. Dharmapurikar, Arulraj A. Kashmir, T. Kumari, Virbhadra Kalalawe, Maruti Kanetkar, Mrinmoy Kumar Chini

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Abstrakt

The charge carrier mobility of conjugated small molecules (CSMs) depends on the intermolecular interactions and morphology. Herein, we report the synthesis of CSMs having different side chains. Hydrogen bonding, lipophilic imbalance and van der Waals interactions are imparted through the asymmetric substitution of Isoindigo. The secondary forces impact thin film morphology, and charge carrier mobility. The CSMs having van der Waals interaction further shows higher charge carrier mobility as a function of improved morphology, and increased temperature. The highest mobility of 0.15 cm 2/Vs has been achieved for CSMs with van der Waals interaction.

OriginalsprogEngelsk
Artikelnummer138621
TidsskriftChemical Physics Letters
Vol/bind774
Antal sider7
ISSN0009-2614
DOI
StatusUdgivet - jul. 2021
Udgivet eksterntJa

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