Facile Fabrication of Highly Uniform Tellurium Nanorods for Self‐Powered Flexible Optoelectronics,Advanced Electronic Materials

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Facile Fabrication of Highly Uniform Tellurium Nanorods for Self‐Powered Flexible Optoelectronics
Advanced Electronic Materials ( IF 5.3 ) Pub Date : 2020-05-20 , DOI: 10.1002/aelm.202000240
Qi Xiao ₁ , Xiang‐Yang Li ₁ , Ze‐Qi Zhang ₁ , Chen‐Xia Hu ₁ , Guan‐Hua Dun ₁ , Bing Sun ₁ , Yong Peng ₂ , Qiang Wang ₁ , Zijian Zheng ₃ , Hao‐Li Zhang _{1,

4}

Affiliation

Nanoscale tellurium (Te) materials are promising for advanced optoelectronics owing to their many intriguing properties. However, the facile fabrication of highly uniform 1D Te nanostructures has been a challenge. Herein, an electrochemical exfoliation method is developed to prepare uniform Te nanorod (NRs), which can form stable and high concentration suspension in organic solvents. The morphology of the Te NRs can be well tuned by the electrochemical exfoliation condition. Flexible photodetectors based on Te NRs show an excellent responsivity of 6.1 A W⁻¹. The detectivity achieves 1.2 × 10¹¹ Jones, which is the highest among Te‐based photodetectors. Moreover, self‐powered photodetectors based on Te NRs are successfully fabricated, which exhibits a responsivity of 3 µA W⁻¹. This new method paves the way for the applications of Te NRs in self‐powered flexible optoelectronics.

中文翻译：

高度均匀地制造用于自供电柔性光电的碲纳米棒

纳米碲（Te）材料具有许多吸引人的特性，因此有望用于先进的光电技术。然而，如何制造高度均匀的一维Te纳米结构一直是一个挑战。在本文中，开发了一种电化学剥离方法以制备均匀的Te纳米棒（NRs），可以在有机溶剂中形成稳定且高浓度的悬浮液。Te NRs的形态可以通过电化学剥离条件很好地调节。基于Te NRs的柔性光电探测器显示出6.1 AW ^-1的出色响应度。探测效率达到1.2×10 ¹¹ Jones，在Te型光电探测器中最高。此外，成功制造了基于Te NR的自供电光电探测器，其响应度为3 µA W^-1。这种新方法为Te NR在自供电柔性光电中的应用铺平了道路。

更新日期：2020-07-13

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