Hybrid Organic/PbS Quantum Dot Bilayer Photodetector with Low Dark Current and High Detectivity,Advanced Functional Materials

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Hybrid Organic/PbS Quantum Dot Bilayer Photodetector with Low Dark Current and High Detectivity
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2018-01-17 , DOI: 10.1002/adfm.201706690
Yuanzhi Wei _{1,

2} , Zhenwei Ren _{1,

3,

4} , Andong Zhang _{1,

2} , Peng Mao _{1,

2} , Hui Li ₁ , Xinhua Zhong _{3,

4} , Weiwei Li _{1,

2} , Shiyong Yang _{1,

2} , Jizheng Wang _{1,

2}

Affiliation

Owing to their ease of fabrication, low cost, and high flexibility, organic materials have attracted great interests in photodetector (PD) applications. However, suffering from large dark current, small photocurrent, low on–off ratio, and low sensitivity, performances of bare organic‐based PDs are not satisfactory. Integrating organic materials with other novel semiconductor materials offers an opportunity to overcome these drawbacks. Here, a lateral hybrid organic/lead sulfide (PbS) quantum dot bilayer PD is designed and fabricated, which significantly suppresses the dark current and enhances the photocurrent, leading to improved light detecting capability. Meanwhile, the bilayer PD can be made on a flexible polyimide substrate.

中文翻译：

低暗电流和高探测性的混合有机/ PbS量子点双层光电探测器

由于其易于制造，低成本和高灵活性，有机材料在光电探测器（PD）应用中引起了极大的兴趣。但是，由于存在暗电流大，光电流小，开/关比低和灵敏度低的问题，基于有机裸露的PD的性能并不令人满意。有机材料与其他新型半导体材料的集成提供了克服这些缺点的机会。这里，设计并制造了横向混合有机/硫化铅（PbS）量子点双层PD，其显着抑制了暗电流并增强了光电流，从而提高了光检测能力。同时，可以在柔性聚酰亚胺基板上制造双层PD。

更新日期：2018-01-17

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