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Updated: Aug 24, 2025

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
Intermolecular interactions of an isoindigo-based organic semiconductor with various crosslinkers through hydrogen
Cuc Kim Trinh1, Jin Woo Choi2, Thien Khanh Tran1
1Chemical Engineering in Advanced Materials and Renewable Energy Research Group, School of Engineering and Technology, Van Lang University Ho Chi Minh City Vietnam cuc.tk@vlu.edu.vn.
Abstract:
Three crosslinkers (1,4-diaminobutane, 1,8-diaminooctane, and 1,6-hexanediol) were selected to produce hydrogen-bonded networks using a simple and effective method. The effects of these crosslinkers on the arrangement of crystalline structures were successfully studied using X-ray diffraction and high-voltage electron microscopy. The hydrogen-bonded isoindigo-based small molecules with 1,4-diaminobutane showed the best performance, with a crystal structure showing long-range order, due to the more suitable length of the 1,4-diaminobutane chain. The hole mobility estimated from hole-only devices based on isoindigo was enhanced from 1.24 × 10-6 cm2 V-1 s-1 to 7.28 × 10-4 cm2 V-1 s-1 as a result of the inclusion of this crosslinker, due to the formation of stronger interactions between the molecules.
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