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Power factor enhancement for few-layered graphene films by molecular attachments

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Power factor enhancement for few-layered graphene films by molecular attachments
นักวิจัย : Sim, Daohao , Liu, Dayong , Dong, Xiaochen , Xiao, Ni , Li, Sean , Zhao, Yang , Li, Lain-Jong , Yan, Qingyu , Hng, Huey Hoon
คำค้น : DRNTU::Engineering::Materials::Nanostructured materials.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2554
อ้างอิง : Sim, D., Liu, D., Dong, X., Xiao, N., Li, S., Zhao, Y., et al. (2011). Power Factor Enhancement for Few-Layered Graphene Films by Molecular Attachments, The Journal of Physical Chemistry C, 115(5), 1780-1785. , http://hdl.handle.net/10220/7451 , http://dx.doi.org/10.1021/jp1103609
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : The journal of physical chemistry C
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

In this work, we prepared few-layered graphene (FLG) films and investigated their thermoelectric properties. It was found that pristine FLG films showed a low thermopower of ~40 μV/K. We further processed these FLG films by attaching them with 1,1′-azobis(cyanocyclohexane) or 1,3,6,8-pyrenetetrasulfonic acid. The thermopower of FLG films with attached molecules increased to above ~180 μV/K. Such enhancement in the thermopower led to an increase in their power factor by more than 4.5 times. Theoretical investigation indicated that a potential difference can be introduced between the outer layer and inner layer of FLG films upon molecule attachments. Simulation of the thermopower based on Kubo’s formula provided qualitative support to our experimental results.

บรรณานุกรม :
Sim, Daohao , Liu, Dayong , Dong, Xiaochen , Xiao, Ni , Li, Sean , Zhao, Yang , Li, Lain-Jong , Yan, Qingyu , Hng, Huey Hoon . (2554). Power factor enhancement for few-layered graphene films by molecular attachments.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Sim, Daohao , Liu, Dayong , Dong, Xiaochen , Xiao, Ni , Li, Sean , Zhao, Yang , Li, Lain-Jong , Yan, Qingyu , Hng, Huey Hoon . 2554. "Power factor enhancement for few-layered graphene films by molecular attachments".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Sim, Daohao , Liu, Dayong , Dong, Xiaochen , Xiao, Ni , Li, Sean , Zhao, Yang , Li, Lain-Jong , Yan, Qingyu , Hng, Huey Hoon . "Power factor enhancement for few-layered graphene films by molecular attachments."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2554. Print.
Sim, Daohao , Liu, Dayong , Dong, Xiaochen , Xiao, Ni , Li, Sean , Zhao, Yang , Li, Lain-Jong , Yan, Qingyu , Hng, Huey Hoon . Power factor enhancement for few-layered graphene films by molecular attachments. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2554.