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The electrical properties of graphene modified by bromophenyl groups derived from a diazonium compound

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : The electrical properties of graphene modified by bromophenyl groups derived from a diazonium compound
นักวิจัย : Dong, Xiaochen , Long, Qing , Wei, Ang , Zhang, Wenjing , Li, Lain-Jong , Chen, Peng , Huang, Wei
คำค้น : DRNTU::Engineering::Bioengineering
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2554
อ้างอิง : Dong, X., Long, Q., Wei, A., Zhang, W., Li, L. J., Chen, P., et al. (2011). The electrical properties of graphene modified by bromophenyl groups derived from a diazonium compound. Carbon, 50(4), 1517-1522. , 0008-6223 , http://hdl.handle.net/10220/10818 , http://dx.doi.org/10.1016/j.carbon.2011.11.029
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Carbon
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Graphene field-effect transistors were fabricated with mechanically exfoliated single-layer graphene (SLG) and bilayer graphene (BLG) sheets and the functionalization effects of bromophenyl groups derived from a diazonium compound on its transfer properties were explored. Spectroscopic and electrical studies reveal that the bromophenyl grafting imposes p-doping to both SLG and BLG. The modification of SLG by bromophenyl groups significantly reduces the hole carrier mobility and the saturation current in SLG transistors, suggesting an increase in both long-range impurity and short-range defect scattering. Unexpectedly, the bromophenyl group functionalization on BLG does not obviously increase both types of scattering, indicating that the BLG is relatively more resistant to charge- or defect-induced scattering. The results indicate that chemical modification is a simple approach to tailor the electrical properties of graphene sheets with different numbers of layers.

บรรณานุกรม :
Dong, Xiaochen , Long, Qing , Wei, Ang , Zhang, Wenjing , Li, Lain-Jong , Chen, Peng , Huang, Wei . (2554). The electrical properties of graphene modified by bromophenyl groups derived from a diazonium compound.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Dong, Xiaochen , Long, Qing , Wei, Ang , Zhang, Wenjing , Li, Lain-Jong , Chen, Peng , Huang, Wei . 2554. "The electrical properties of graphene modified by bromophenyl groups derived from a diazonium compound".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Dong, Xiaochen , Long, Qing , Wei, Ang , Zhang, Wenjing , Li, Lain-Jong , Chen, Peng , Huang, Wei . "The electrical properties of graphene modified by bromophenyl groups derived from a diazonium compound."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2554. Print.
Dong, Xiaochen , Long, Qing , Wei, Ang , Zhang, Wenjing , Li, Lain-Jong , Chen, Peng , Huang, Wei . The electrical properties of graphene modified by bromophenyl groups derived from a diazonium compound. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2554.