Adjustable magnetoresistance in semiconducting carbonized phthalonitrile resin

Chong Gao; Ming Yang; Wenhao Xie; Hang Zhang; Hongbo Gu; Ai Du; Zhong Shi; Ying Guo; Heng Zhou; Zhanhu Guo

doi:10.1039/D1CC04300E

Adjustable magnetoresistance in semiconducting carbonized phthalonitrile resin†

Chong Gao,^a Ming Yang,^b Wenhao Xie,^ac Hang Zhang,

^b Hongbo Gu,

*^a Ai Du,

^d Zhong Shi,^d Ying Guo,^e Heng Zhou*^e and Zhanhu Guo

*^f

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* Corresponding authors

^a Shanghai Key Lab of Chemical Assessment and Sustainability, School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China
E-mail: hongbogu2014@tongji.edu.cn

^b Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100049, China

^c Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou, China

^d Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, School of Physics Science and Engineering, Tongji University, Shanghai 200092, China

^e Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
E-mail: zhouheng@iccas.ac.cn

^f Integrated Composites Lab (ICL), Department of Chemical & Biomolecular Engineering University of Tennessee, Knoxville, TN, USA
E-mail: zguo10@utk.edu

Abstract

Herein, we report the first example of controllable magnetoresistance in a semiconducting carbonized phthalonitrile resin. This special phenomenon is explained using the different ratios of graphite-like (sp²) and diamond-like (sp³) bonds and localization length (a₀) as well as the density of states at the Fermi-level (N(E_F)).

Chemical Communications

Adjustable magnetoresistance in semiconducting carbonized phthalonitrile resin†

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Adjustable magnetoresistance in semiconducting carbonized phthalonitrile resin

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