ZnSb/Ti3C2Tx MXene van der Waals heterojunction for flexible near-infrared photodetector arrays |
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| Chuqiao Hu, Ruiqing Chai, Zhongming Wei, La Li, Guozhen Shen. ZnSb/Ti3C2Tx MXene van der Waals heterojunction for flexible near-infrared photodetector arrays[J]. Journal of Semiconductors, 2024, 45(5): 052601. doi: 10.1088/1674-4926/45/5/052601 C Q Hu, R Q Chai, Z M Wei, L Li, and G Z Shen, ZnSb/Ti3C2Tx MXene van der Waals heterojunction for flexible near-infrared photodetector arrays[J]. J. Semicond., 2024, 45(5), 052601 doi: 10.1088/1674-4926/45/5/052601Export: BibTex EndNote |
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| Authors: | Chuqiao Hu Ruiqing Chai Zhongming Wei La Li Guozhen Shen |
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| Affiliation: | 1. State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;2. Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;3. School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Two-dimension (2D) van der Waals heterojunction holds essential promise in achieving high-performance flexible near-infrared (NIR) photodetector. Here, we report the successful fabrication of ZnSb/Ti3C2Tx MXene based flexible NIR photodetector array via a facile photolithography technology. The single ZnSb/Ti3C2Tx photodetector exhibited a high light-to-dark current ratio of 4.98, fast response/recovery time (2.5/1.3 s) and excellent stability due to the tight connection between 2D ZnSb nanoplates and 2D Ti3C2Tx MXene nanoflakes, and the formed 2D van der Waals heterojunction. Thin polyethylene terephthalate (PET) substrate enables the ZnSb/Ti3C2Tx photodetector withstand bending such that stable photoelectrical properties with non-obvious change were maintained over 5000 bending cycles. Moreover, the ZnSb/Ti3C2Tx photodetectors were integrated into a 26 × 5 device array, realizing a NIR image sensing application. |
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| Keywords: | ZnSb nanoplates Ti3C2Tx MXene van der Waals heterojunction flexible photodetector image sensing |
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