<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Swain, Gitanjali</style></author><author><style face="normal" font="default" size="100%">Javaregowda, Bharathkumar H.</style></author><author><style face="normal" font="default" size="100%">Dambhare, Neha V.</style></author><author><style face="normal" font="default" size="100%">Krishnamoorthy, Kothandam</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Organic field effect transistors comprising copolymers synthesized without structure-directing moieties with enhanced carrier mobility</style></title><secondary-title><style face="normal" font="default" size="100%">ACS Applied Electronic Materials</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">acetylene linkage</style></keyword><keyword><style  face="normal" font="default" size="100%">BODIPY</style></keyword><keyword><style  face="normal" font="default" size="100%">field effect transistor</style></keyword><keyword><style  face="normal" font="default" size="100%">iso-indigo</style></keyword><keyword><style  face="normal" font="default" size="100%">Sonogashira coupling</style></keyword><keyword><style  face="normal" font="default" size="100%">thienoisoindigo</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2023</style></year><pub-dates><date><style  face="normal" font="default" size="100%">APR</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">5</style></volume><pages><style face="normal" font="default" size="100%">2338-2344</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	Conjugated materials are synthesized by C-C bond formation reactions. Trimethyltin and boronic acid are two widely used structure-directing moieties. While using the ethynyl moiety as a part of the monomer, additional structure-directing moieties are not needed. However, ethynylene will be part of the conjugated material. Often, the polymers with an ethynylene moiety negatively impact the polymers' properties. However, the ethynylene moiety could minimize the dihedral angle if the monomer has steric functionalities. For example, BODIPY is an attractive monomer due to its high molar extinction coefficient, partial quinoidal character, and high quantum yield. However, materials based on BODIPY exhibited poor charge carrier mobility due to steric hindrance generated by four methyl groups. Herein, we copolymerize BODIPY with ethynylene comprising i-indigo and thieno-i-indigo. The copolymer with thieno-i-indigo showed increased molecular weight and significantly reduced band gap compared to the copolymer with i-indigo. The copolymer with i-indigo showed immeasurably low hole transport mobility. On the other hand, the copolymer with thieno-i-indigo exhibited 0.003 cm2V(-1) s(-1). These measurements were made using field effect transistors. We also measured the charge carrier mobility using the space charge-limited current method. Both copolymers exhibited a mobility of 10(-3) cm(2) V-1 s(-1).&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;
	Foreign&lt;/p&gt;
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	4.494&lt;/p&gt;
</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Swain, Gitanjali</style></author><author><style face="normal" font="default" size="100%">Kumar, Subramani</style></author><author><style face="normal" font="default" size="100%">Samudre, Nikhil S.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Variations in packing as a function of side chains in random copolymers and its impact on charge carrier mobility</style></title><secondary-title><style face="normal" font="default" size="100%">Macromolecular Chemistry and Physics</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">diketopyrrolopyrrole</style></keyword><keyword><style  face="normal" font="default" size="100%">organic field effect transistor</style></keyword><keyword><style  face="normal" font="default" size="100%">random polymer</style></keyword><keyword><style  face="normal" font="default" size="100%">side chain engineering</style></keyword><keyword><style  face="normal" font="default" size="100%">thienoisoindigo</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2024</style></year><pub-dates><date><style  face="normal" font="default" size="100%">OCT </style></date></pub-dates></dates><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	Homopolymers and alternating copolymers of conjugated molecules exhibit impressive performance in electronic devices. Despite the well-established procedures, the synthesis of alternating copolymers using three monomers is not as easy as random copolymers. Besides facile synthesis, the random copolymers can match the performance of alternating copolymers in electronic devices. Herein, random copolymers are designed and synthesized comprising thienoisoindigo (TIIG), diketopyrrolopyrrole (DPP), and thiophene. The DPP monomers installed with various side chains including branched alkyl chain, branched alkyl chain with ester functionality, linear oligo ethylene glycol, and siloxane terminated alkyl chain are incorporated into the polymers (P1, P2, P3, and P4, respectively). All the thermally stable, low bandgap random copolymers exhibited strong H-type aggregation in thin film. The relationship between thin film microstructure originating from diverse side chains and the charge transport in organic field effect transistors (OFETs) is investigated. All the random copolymers exhibited predominantly p-type charge transport and a maximum hole mobility of 2 x 10-2 cm2 V-1s-1 is observed for P3. The packing of all the polymers is examined theoretically by density functional theory (DFT) and compared with experimental values obtained from grazing incident X-ray diffraction (GIXRD). Various side chains (hydrophilic and hydrophobic) affect molecular packing of random polymers which ultimately affects its thin film morphology and semiconducting performances. Linear chains provide better interchain packing by pi-pi stacking compared to bulky branched side chains. The incorporation of heteroatoms and polar groups into the side chain further enhances the interchain interactions. image&lt;/p&gt;
</style></abstract><work-type><style face="normal" font="default" size="100%">Article; Early Access</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;
	Foreign&lt;/p&gt;
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	2.5&lt;/p&gt;
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