@article {43788, title = {Synthesis of amphiphilic isoindigo co-polymers for organic field effect transistors: A comparative study}, journal = {Journal of the apllied polymer science}, volume = {134}, year = {2017}, month = {NOV}, chapter = {45461}, abstract = {

In this work, the amphiphilic isoindigo (am-iInd) based conjugated polymers namely poly(am-iInd-DT) and poly(am-iInd-TT) and their regular counterpart poly(reg-iInd-DT) and poly(reg-iInd-TT) were synthesized to compare their opto-electronic and charge transport properties. They were used to fabricate organic field effect transistors. Charge transport properties in conjugated polymers depend upon intermolecular interaction which is strongly affected by the nature of side chains. The amphiphilic nature of the conjugated polymers has little impact on the charge transport properties. The charge carrier mobility of amphiphilic conjugated polymers was comparable with the regular polymers except poly(reg-iInd-DT) which can be correlated by X-ray diffraction and thin film morphology. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45461.

}, keywords = {Alkyl, Applications; Conducting polymers; Copolymers; Optical and Photovoltaic applications, conjugated polymers, High-performance, mobility, Packaging, Semicondoctors, Side-chains, Solar-cells, Thin-film Transformer}, issn = {0021-8995}, doi = {10.1002/app.45461}, author = {Dharmapurikar, Satej S. and Arulkashmir, Arulraj and Mahale, Rajashree Y. and Chini, Mrinmoy Kumar} } @article {47345, title = {Significance of secondary forces toward improving the charge carrier mobility of Isoindigo based conjugated small molecules}, journal = {Chemical Physics Letters}, volume = {774}, year = {2021}, month = {JUL}, pages = {138621}, type = {Article}, abstract = {

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 cm2/Vs has been achieved for CSMs with van der Waals interaction.

}, keywords = {Conjugated small molecules, Isoindigo, mobility, OFET, Secondary force}, issn = {0009-2614}, doi = {10.1016/j.cplett.2021.138621}, author = {Dharmapurikar, Satej S. and Kashmir, Arulraj Arul and Kumari, Tanya and Kalalawe, Virbhadra and Kanetkar, Maruti and Chini, Mrinmoy Kumar} }