سنتز و بررسی ویژگی‌های الکتریکی گرافن سه بعدی

دبیر, فاطمه; صراف ماموری, رسول; ریاحی نوری, نسترن; هنگ تانگ تئو, ادوین; لبلئین, مانوئلا

doi:10.30501/jamt.2637.70303

سنتز و بررسی ویژگی‌های الکتریکی گرافن سه بعدی

نویسندگان

فاطمه دبیر ¹

رسول صراف ماموری ¹

نسترن ریاحی نوری

ادوین هنگ تانگ تئو ²

مانوئلا لبلئین ²

¹ دانشگاه تربیت مدرس، دانشکده فنی و مهندسی، بخش مهندسی مواد، گروه سرامیک، تهران، ایران

² دانشگاه صنعتی نایانگ، سنگاپور

10.30501/jamt.2637.70303

چکیده

در این پژوهش گرافن سه بعدی با روش CVD حرارتی و با استفاده از الگوی نیکل در یک کوره لولهای سنتز شد. این روش شامل رشد گرافن بر روی الگوی نیکل با استفاده از گازهای Ar و H₂ و پیش ماده کربنی اتانول و سپس حذف الگوی نیکل با استفاده از اچ شیمیایی میباشد. در نهایت گرافن سنتز شده با استفاده از آنالیزهای XRD، SEM و Raman مورد مشخصه یابی قرار گرفت. هدایت الکتریکی و تابع کار آن نیز به ترتیب با روشهای Van der Pauw و UPSتعیین شدند. نتایج نشان دهنده تشکیل گرافن سه بعدی با تخلخل بسیار بالا و کیفیت مطلوب بودند. هدایت الکتریکی و تابع کار آن نیز به ترتیب s.cm^-1 4 و eV 5 اندازه گیری شدند.

کلیدواژه‌ها

گرافن سه بعدی

هدایت الکتریکی

تابع کار

CVD

عنوان مقاله English

Synthesis and Electrical Properties Evaluation of Three-Dimensional Graphene

نویسندگان English

Fatemeh Dabir ¹

Rasoul Sarraf-Mamoory ¹

Nastaran Riahi-Noori

Edwin Hang Tong Teo ²

Manuela Loeblein ²

¹ Tarbiat Modares University, Faculty of Engineering and Technology, Tehran, Iran

² Nanyang Technological University, Singapore

چکیده English

In this research, three-dimensional graphene (3DG) was synthesized via thermal CVD method by using
nickel foam in a tube furnace. This method consists of graphene growth on the nickel foam using Ar and H2 gases and
ethanol carbon precursor, followed by removal of nickel foam by chemical etching. Finally, the synthesized graphene
was characterized by XRD, SEM and Raman analyses. The electrical conductivity and work function of 3DG were
determined by Van der Pauw method and UPS technique, respectively. The results indicated that the high porosity and
good quality three-dimensional graphene was formed. The electrical conductivity and work function of 3DG were
measured 4 s.cm-1 and 5 eV, respectively.

کلیدواژه‌ها English

Three-Dimensional Graphene

Electrical Conductivity

Work Function

CVD

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