Hysteresis-controlled Van der Waals tunneling infrared detector enabled by selective layer heating
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arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866915053593165824 |
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| author | Mylnikov, Dmitry A. Kashchenko, Mikhail A. Safonov, Ilya V. Novoselov, Kostya S. Bandurin, Denis A. Chernov, Alexander I. Svintsov, Dmitry A. |
| author_facet | Mylnikov, Dmitry A. Kashchenko, Mikhail A. Safonov, Ilya V. Novoselov, Kostya S. Bandurin, Denis A. Chernov, Alexander I. Svintsov, Dmitry A. |
| contents | Mid-infrared (mid-IR) photodetectors play a crucial role in various applications, including the development of biomimetic vision systems that emulate neuronal function. However, current mid-IR photodetector technologies are limited by their cost and efficiency. In this work, we demonstrate a new type of photodetector based on a tunnel structure made of two-dimensional materials. The effect manifests when the upper and lower layers of the tunnel structure are heated differently. The photoswitching is threshold-based and represents a ``jump'' in voltage to another branch of the current-voltage characteristic when illuminated at a given current. This mechanism provides enormous photovoltage (0.05$-$1~V) even under weak illumination. Our photodetector has built-in nonlinearity and is therefore an ideal candidate for use in infrared vision neurons. Additionally, using this structure, we demonstrated the possibility of selective heating of layers in a van der Waals stack using mid-IR illumination. This method will allow the study of heat transfer processes between layers of van der Waals structures, opening new avenues in the physics of phonon interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_05977 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Hysteresis-controlled Van der Waals tunneling infrared detector enabled by selective layer heating Mylnikov, Dmitry A. Kashchenko, Mikhail A. Safonov, Ilya V. Novoselov, Kostya S. Bandurin, Denis A. Chernov, Alexander I. Svintsov, Dmitry A. Mesoscale and Nanoscale Physics Optics Mid-infrared (mid-IR) photodetectors play a crucial role in various applications, including the development of biomimetic vision systems that emulate neuronal function. However, current mid-IR photodetector technologies are limited by their cost and efficiency. In this work, we demonstrate a new type of photodetector based on a tunnel structure made of two-dimensional materials. The effect manifests when the upper and lower layers of the tunnel structure are heated differently. The photoswitching is threshold-based and represents a ``jump'' in voltage to another branch of the current-voltage characteristic when illuminated at a given current. This mechanism provides enormous photovoltage (0.05$-$1~V) even under weak illumination. Our photodetector has built-in nonlinearity and is therefore an ideal candidate for use in infrared vision neurons. Additionally, using this structure, we demonstrated the possibility of selective heating of layers in a van der Waals stack using mid-IR illumination. This method will allow the study of heat transfer processes between layers of van der Waals structures, opening new avenues in the physics of phonon interactions. |
| title | Hysteresis-controlled Van der Waals tunneling infrared detector enabled by selective layer heating |
| topic | Mesoscale and Nanoscale Physics Optics |
| url | https://arxiv.org/abs/2412.05977 |