| 利用尿素热退火方法制备氮掺杂石墨 |
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| 引用本文： | 李新静,于欣欣,刘金养,范晓东,张琨,蔡洪冰,潘楠,王晓平.利用尿素热退火方法制备氮掺杂石墨[J].化学物理学报,2012,25(3):325-329. |
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| 作者姓名： | 李新静 于欣欣 刘金养 范晓东 张琨 蔡洪冰 潘楠 王晓平 |
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| 作者单位： | 中国科学技术大学物理系，合肥230026;中国科学技术大学合肥微尺度物质科学国家实验室(筹)，合肥230026;中国科学技术大学物理系，合肥230026;中国科学技术大学物理系，合肥230026;中国科学技术大学合肥微尺度物质科学国家实验室(筹)，合肥230026;中国科学技术大学合肥微尺度物质科学国家实验室(筹)，合肥230026;中国科学技术大学物理系，合肥230026;中国科学技术大学物理系，合肥230026；中国科学技术大学合肥微尺度物质科学国家实验室(筹)，合肥230026 |
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| 摘 要： | 在尿素气氛中，通过热退火实验实现石墨烯的氮掺杂. 结合光电子能谱和拉曼光谱，确定了氮在石墨烯中的掺杂构型，并发现掺杂量可以通过退火温度和时间加以调控. 电性测量表明掺杂石墨烯的电导同氮掺杂量有很好的关联性.
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| 关 键 词： | 石墨烯，掺杂，电导，光电子能谱，拉曼光谱 |
| 收稿时间： | 2012/2/17 0:00:00 |
Synthesis of Nitrogen-Doped Graphene via Thermal Annealing Graphene with Urea |
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| Xin-jing Li,Xin-xin Yu,Jin-yang Liu,Xiao-dong Fan,Kun Zhang,Hong-bing Cai,Nan Pan and Xiao-ping Wang.Synthesis of Nitrogen-Doped Graphene via Thermal Annealing Graphene with Urea[J].Chinese Journal of Chemical Physics,2012,25(3):325-329. |
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| Authors: | Xin-jing Li Xin-xin Yu Jin-yang Liu Xiao-dong Fan Kun Zhang Hong-bing Cai Nan Pan and Xiao-ping Wang |
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| Abstract: | Chemical doping is an effective method to intrinsically modify the chemical and electronic property of graphene. We propose a novel approach to synthesize the nitrogen-doped graphene via thermal annealing graphene with urea, in which the nitrogen source can be controllably released from the urea by varying the annealed temperature and time. The doped N content and the configuration N as well as the thermal stabilities are also evaluated with X-ray photoelectron spectroscopy and Raman spectra. Electrical measurements indi-cate that the conductivity of doped graphene can be well regulated with the N content. The method is expected to produce large scale and controllable N-doped graphene sheets for a variety of potential applications. |
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| Keywords: | Graphene Doping Conductivity X-ray photoelectron spectroscopy Raman spectrum |
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