| Autor: |
Fu, Shili, Liu, Xiaohui, Dou, Haoyun, Ali, Rawaid, Zeng, Ao, Man, Jiaxiu, Zheng, Xiaolu, Wang, Hong-En |
| Zdroj: |
Journal of Materials Chemistry A; 11/7/2024, Vol. 12 Issue 41, p28012-28022, 11p |
| Abstrakt: |
Antimony sulfide (Sb2S3) holds great promise for optoelectronic and photovoltaic applications, attributed to its optimal bandgap (1.5–2.2 eV) and unique physicochemical properties. Notably, one-dimensional single-crystalline Sb2S3 demonstrates exceptional charge transport capabilities due to its directional transport properties and significantly reduced grain boundaries. In this work, we present the controlled synthesis of Sb2S3 microtubes through a hydrothermal reaction process utilizing ethylenediaminetetraacetic acid as a structure-directing agent. These microtubes, characterized by lengths of up to 230 μm and diameters of approximately 8 μm, exhibit excellent crystal quality and smooth surfaces, facilitating their integration into device fabrication processes. The resulting single Sb2S3 microtube-based photodetector device demonstrates broadband visible photodetection capabilities, featuring a high responsivity (82 A/W), an external quantum efficiency of 1.3 × 104%, short rise/decay times during switching (9.8 ms/9.2 ms), and a high detectivity of 7.6 × 1010 Jones. Furthermore, the device exhibits responsiveness across the monochromatic light spectrum ranging from 350 to 800 nm, with a particularly notable switching ratio of 82.2 observed at 722 nm. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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