Liquid Exfibration and Optoelectronic Devices of Fibrous Phosphorus
Liquid Exfibration and Optoelectronic Devices of Fibrous Phosphorus
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DOI：
10.1021/acs.inorgchem.9b03188
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发表时间：
2020-01-20
影响因子：
4.6
通讯作者：
Zhang, Yongzhe
中科院分区：
文献类型：
--
作者：
Zhang, Guoqing;Liu, Danmin;Zhang, Yongzhe
准一维（QID）半导体材料，如碳纳米管、SbSI、MP 15（M = Li、Na、K）以及硒和碲纳米线，在未来纳米电子和光电器件中显示出惊人的应用潜力。然而，碳纳米管结构中复杂的手性限制了其应用。此外，MP 15在光电子学中的性能还有待广泛探索。一种新的Q1 D半导体材料--纤维状磷（FP）最近受到关注，因为它的原材料毒性较低。然而，通过相位识别来表征FP的能力在微米/纳米厚度的评估中是有限的，例如脱纤FP。因此，识别精确的拉曼光谱将允许更好的表征。这里，获得并分析FP的足够尖锐的拉曼光谱。此外，我们证明，高品质，少层FP纤维的厚度低至5.55 nm，可以通过在溶剂中的环境条件下的液相exfibration生产。更重要的是，基于单FP光纤场效应晶体管结构的光电探测器进行了研究。FP晶体管的上升时间短至约40 ms，说明FP单束晶体作为一种新的一维材料的光电器件应用的潜力。
Quasi-one-dimensional (QID) semiconductor materials, such as carbon nanotubes, SbSI, MP15 (M = Li, Na, K), and selenium and tellurium nanowires, show amazing potential for applications in future nanoelectronic and optoelectronic devices. However, intricate chirality in the structure of carbon nanotubes limits their applications. Also, the performance of MP15 in optoelectronics has yet to be extensively explored. One new Q1D semiconductor material, fibrous phosphorus (FP), has recently received attention because its raw material is less toxic. However, the ability to characterize FP by phase identification is limited in the assessment of micro/nano-thickness, such as exfibrated FP. So, identifying a precise Raman spectrum will allow for much better characterization. Here, a sufficiently sharp Raman spectrum of FP was obtained and analyzed. Moreover, we demonstrated that high-quality, few-layer FP fibers with thicknesses as low as 5.55 nm can be produced by liquid-phase exfibration under ambient conditions in solvents. More importantly, an optoelectronic detector based on a single FP fiber field-effect-transistor configuration was investigated. A rise time as short as about 40 ms was obtained for the FP transistors, illustrating the potential of FP single bundle crystals as a new one-dimensional material for optoelectronic device applications.