کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
607601 1454589 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stable colloidal dispersion of functionalized reduced graphene oxide in aqueous medium for transparent conductive film
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Stable colloidal dispersion of functionalized reduced graphene oxide in aqueous medium for transparent conductive film
چکیده انگلیسی


• Graphene surface is modified to attain stable dispersion in aqueous medium.
• Stable colloidal solution is due to presence of functional groups on graphene.
• This dispersion is directly applied to fabricate transparent conductive film.
• It exhibits sheet resistance of 1.1 kΩ/□ at 89% of transmittance.

We prepared stable colloidal suspension graphene in aqueous medium by surface modification of graphene with 4-benzenediazonium sulfonate. The sulfonate group on graphene surface interacts with water, exhibits well dispersibility and which prevents the aggregation even at neutral pH. This dispersion shows stability for three months and facile to produce films. Using such a modified graphene dispersion, transparent conductive film (TCF) has been fabricated on glass substrate by spin coating method. At appropriate concentration, the film exhibits an excellent optoelectrical property with resistivity of 1.1 kΩ with the transparency of 89% at the wavelength of 550 nm. Further, we also demonstrated the mechanical, thermal, and optoelectrical properties of prepared films.

Figure optionsDownload high-quality image (63 K)Download as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 406, 15 September 2013, Pages 69–74
نویسندگان
, , , ,