课题组硕士生钟佳宏在国际物理光学期刊Optics Express上发表论文

2021-01-05 10:52:28 427

课题组成员钟佳宏在国际物理光学期刊Optics Express上发表论文

近日，课题组成员钟佳宏同学在刘老师的指导下，以第一作者在美国光学学会旗下著名光学期刊Optics Express上发表题为“Direct Observation of Enhanced Performance in suspended ReS2 Photodetectors (基于悬浮ReS2光电探测器增强性能的直接观察)”的实验论文。

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由于其非凡的电学、机械和光电性能，二硫化铼(ReS2)已成为未来光电应用的潜能材料。但是，基于ReS2的光电探测器受到响应速度慢(> 10 s)的严重限制。为此，我们实验报道了一种基于悬浮ReS2光电探测器。这种晶体管显示出n型行为，其迁移率约为14.2 cm2V-1s-1，通/断比为105，响应度为0.22 A / W。这些优良的性能得益于Au和ReS2通道之间良好的接触以及Si衬底界面散射的减少，该器件的响应时间可以短至83.5 /325.3μs，比先前报道的快了三个数量级。此外，由于材料独特的面内各向异性，悬浮式ReS2光电探测器还具有检测偏振光(在532 nm处Imax / Imin≈1.4)的能力。这些研究为提高基于ReS2的光电探测器的性能提供了一种有效的方法。

 文章链接：https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-29-3-3567&id=446812

Comments:

  • The direct observation of enhanced performance in suspended ReS2 photodetectors is a significant advancement in the field of photodetection. ReS2 (ReS2) is a two-dimensional transition metal dichalcogenide material that has recently received considerable attention for its unique electronic and optical properties. Its ability to exhibit photodetection properties makes it an attractive material for a variety of applications, including infrared imaging and sensing.

  • The enhancement in performance in suspended ReS2 photodetectors is attributed to the suspended geometry, which allows for better light absorption and improved charge transport properties compared to planar devices. The suspended geometry also reduces the number of defects in the material, leading to higher photoresponse and responsivity values.

  • Additionally, the suspended ReS2 photodetectors show a high degree of stability and reproducibility, making them a promising candidate for practical applications. The results of this study provide a solid foundation for the further development and optimization of ReS2 photodetectors, which could lead to a new generation of efficient and reliable photodetection devices.

  • Overall, the direct observation of enhanced performance in suspended ReS2 photodetectors highlights the potential of this material for photodetection applications and opens up new avenues for research in this field.