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Zhuo Q, Mao Y, Lu S, Cui B, Yu L, Tang J, Sun J, Yan C. Seed-Assisted Synthesis of Graphene Films on Insulating Substrate. MATERIALS 2019; 12:ma12091376. [PMID: 31035332 PMCID: PMC6539927 DOI: 10.3390/ma12091376] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/22/2019] [Accepted: 04/23/2019] [Indexed: 12/11/2022]
Abstract
Synthesizing graphene at a large-scale and of high quality on insulating substrate is a prerequisite for graphene applications in electronic devices. Typically, graphene is synthesized and then transferred to the proper substrate for subsequent device preparation. However, the complicated and skilled transfer process involves some issues such as wrinkles, residual contamination and breakage of graphene films, which will greatly degrade its performance. Direct synthesis of graphene on insulating substrates without a transfer process is highly desirable for device preparation. Here, we report a simple, transfer-free method to synthesize graphene directly on insulating substrates (SiO2/Si, quartz) by using a Cu layer, graphene oxide and Poly (vinyl alcohol) as the catalyst, seeds and carbon sources, respectively. Atomic force microscope (AFM), scanning electronic microscope (SEM) and Raman spectroscopy are used to characterize the interface of insulating substrate and graphene. The graphene films directly grown on quartz glass can attain a high transmittance of 92.8% and a low sheet resistance of 620 Ω/square. The growth mechanism is also revealed. This approach provides a highly efficient method for the direct production of graphene on insulating substrates.
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Affiliation(s)
- Qiqi Zhuo
- College of Material Science & Engineering, Jiangsu University of Science and Technology, 2 Meng-Xi Road, Zhenjiang 212003, Jiangsu, China.
| | - Yipeng Mao
- College of Material Science & Engineering, Jiangsu University of Science and Technology, 2 Meng-Xi Road, Zhenjiang 212003, Jiangsu, China.
| | - Suwei Lu
- College of Material Science & Engineering, Jiangsu University of Science and Technology, 2 Meng-Xi Road, Zhenjiang 212003, Jiangsu, China.
| | - Bolu Cui
- College of Material Science & Engineering, Jiangsu University of Science and Technology, 2 Meng-Xi Road, Zhenjiang 212003, Jiangsu, China.
| | - Li Yu
- College of Material Science & Engineering, Jiangsu University of Science and Technology, 2 Meng-Xi Road, Zhenjiang 212003, Jiangsu, China.
| | - Jijun Tang
- College of Material Science & Engineering, Jiangsu University of Science and Technology, 2 Meng-Xi Road, Zhenjiang 212003, Jiangsu, China.
| | - Jun Sun
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, Jiangsu, China.
| | - Chao Yan
- College of Material Science & Engineering, Jiangsu University of Science and Technology, 2 Meng-Xi Road, Zhenjiang 212003, Jiangsu, China.
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