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Integrated Wafer-scale Ultra-flat Graphene by Gradient Surface Energy Modulation by Xin Gao; Liming Zheng; Fang Luo; Jun Qian; Jingyue Wang; Mingzhi Yan; Wendong Wang; Qinci Wu; Junchuan Tang; Yisen Cao; Congwei Tan; Jilin Tang; Mengjian Zhu; Yani Wang; Yanglizhi Li; Luzhao Sun; Guanghui Gao; Jianbo Yin; Li Lin; Zhongfan Liu; Shiqiao Qin; Hailin Peng is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is Integrated Wafer-scale Ultra-flat Graphene by Gradient Surface Energy Modulation about?
## Abstract The integration of large-scale two-dimensional (2D) materials onto semiconductor wafers is highly desirable for advanced electronic devices, but challenges such as transfer-related crack, contamination, wrinkle and doping remain. Here, we developed a generic method by gradient surface energy modulation, leading to a reliable adhesion and release of graphene onto target wafers. The as-obtained wafer-scale graphene exhibited a damage-free, clean, and ultra-flat surface with negligible doping, resulting in uniform sheet resistance with only ~6% deviation. The as-transferred graphene on SiO~2~/Si exhibited high carrier mobility reaching up ~10,000 cm^2^ V^−1^ s^−1^, with quantum Hall effect (QHE) observed at room temperature. Fractional quantum Hall effect (FQHE) appeared at 1.7 K after encapsulation by h-BN, yielding ultra-high mobility of ~280,000 cm^2^ V^−1^ s^−1^. Integrated wafer-scale graphene thermal emitters exhibited significant broadband emission in near-infrared (NIR) spectrum. Overall, the proposed methodology is promising for future integration of wafer-scale 2D materials in advanced electronics and optoelectronics.
Who reads Integrated Wafer-scale Ultra-flat Graphene by Gradient Surface Energy Modulation?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Xin Gao; Liming Zheng; Fang Luo; Jun Qian; Jingyue Wang; Mingzhi Yan; Wendong Wang; Qinci Wu; Junchuan Tang; Yisen Cao; Congwei Tan; Jilin Tang; Mengjian Zhu; Yani Wang; Yanglizhi Li; Luzhao Sun; Guanghui Gao; Jianbo Yin; Li Lin; Zhongfan Liu; Shiqiao Qin; Hailin Peng
- Publisher
- Springer Science and Business Media LLC
- Published
- 2022
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Life Sciences)