The effect of spin-coated polyethylene glycol on the electrical and optical properties of graphene film

被引：8
|
作者：
Umar, Marjoni Imamora Ali [1 ,2 ]
Yap, Chi Chin [1 ]
Awang, Rozidawati [1 ]
Salleh, Muhamad Mat [3 ]
Yahaya, Muhammad [1 ]
机构：
[1] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Appl Phys, Bangi 43600, Selangar, Malaysia
[2] Sekolah Tinggi Agama Islam Negeri STAIN, Fac Tarbiyah, Dept Phys Educ, Batusangkar 27213, West Sumatera, Indonesia
[3] Univ Kebangsaan Malaysia, Inst Microengn & Nanoelectron IMEN, Bangi 43600, Selangar, Malaysia
来源：
APPLIED SURFACE SCIENCE | 2014年 / 313卷
关键词：
Counter electrode; Multilayer graphene; Optical transmission; Sheet resistance; Spin coating; THIN-FILMS; CONDUCTIVITY; ELECTRODES;
D O I：
10.1016/j.apsusc.2014.06.102
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This paper reports the modification of electrical and optical properties of graphene film by spin coating polyethylene glycol (PEG) solution onto the graphene oxide film followed by thermal reduction process. The PEG solution was deposited onto the graphene oxide film at different spin coating speeds (1000, 1500, 2000, 2500 and 3000 rpm). The introduction of PEG at appropriate spin coating speed results in lower sheet resistance and optical transmittance, probably due to better alignment and stacking of the graphene sheets. It is interesting to find that the dye sensitized solar cell with PEG-modified graphene film as counter electrode showed 4 times increase in power conversion efficiency as compared to that with unmodified graphene film. (C) 2014 Elsevier B.V. All rights reserved.
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页码：883 / 887
页数：5
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