Surface transfer doping induced effective modulation on ambipolar characteristics of few-layer black phosphorus
文献类型：期刊论文
| 作者 | Xiang, Du1,2,3; Han, Cheng1,2,3; Wu, Jing1,2,3,4; Zhong, Shu5; Liu, Yiyang2,3,5; Lin, Jiadan1,2,3; Zhang, Xue-Ao6; Hu, Wen Ping7,8,9; Oezyilmaz, Barbaros1,2,3,4; Castro Neto, A. H.1,2,3 |
| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2015-03-01 |
| 卷号 | 6 |
| 英文摘要 | Black phosphorus, a fast emerging two-dimensional material, has been configured as field effect transistors, showing a hole-transport-dominated ambipolar characteristic. Here we report an effective modulation on ambipolar characteristics of few-layer black phosphorus transistors through in situ surface functionalization with caesium carbonate (Cs2CO3) and molybdenum trioxide (MoO3), respectively. Cs2CO3 is found to strongly electron dope black phosphorus. The electron mobility of black phosphorus is significantly enhanced to similar to 27 cm(2)V(-1) s(-1) after 10 nm Cs2CO3 modification, indicating a greatly improved electron-transport behaviour. In contrast, MoO3 decoration demonstrates a giant hole-doping effect. In situ photoelectron spectroscopy characterization reveals significant surface charge transfer occurring at the dopants/black phosphorus interfaces. Moreover, the surface-doped black phosphorus devices exhibit a largely enhanced photodetection behaviour. Our findings coupled with the tunable nature of the surface transfer doping scheme ensure black phosphorus as a promising candidate for further complementary logic electronics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28529]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore 2.Natl Univ Singapore, Ctr Adv Mat 2D, Singapore 117546, Singapore 3.Natl Univ Singapore, Graphene Res Ctr, Singapore 117546, Singapore 4.Natl Univ Singapore, NanoCore, Singapore 117576, Singapore 5.Natl Univ Singapore, Dept Chem, Singapore 117543, Singapore 6.Natl Univ Def Technol, Coll Sci, Changsha 410073, Hunan, Peoples R China 7.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China 8.Tianjin Univ, Sch Sci, Dept Chem, Tianjin 300072, Peoples R China 9.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China 10.Natl Univ Singapore, Suzhou Res Inst, Jiangsu 215123, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xiang, Du,Han, Cheng,Wu, Jing,et al. Surface transfer doping induced effective modulation on ambipolar characteristics of few-layer black phosphorus[J]. NATURE COMMUNICATIONS,2015,6. |
| APA | Xiang, Du.,Han, Cheng.,Wu, Jing.,Zhong, Shu.,Liu, Yiyang.,...&Chen, Wei.(2015).Surface transfer doping induced effective modulation on ambipolar characteristics of few-layer black phosphorus.NATURE COMMUNICATIONS,6. |
| MLA | Xiang, Du,et al."Surface transfer doping induced effective modulation on ambipolar characteristics of few-layer black phosphorus".NATURE COMMUNICATIONS 6(2015). |
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来源：化学研究所
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