High-performance broadband flexible photodetector based on Gd3Fe5O12-assisted double van der Waals heterojunctions
| Title: | High-performance broadband flexible photodetector based on Gd3Fe5O12-assisted double van der Waals heterojunctions |
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| Authors: | Ze Zhang, Peirui Ji, Shaobo Li, Fei Wang, Shengmei He, Yiwei Cheng, Shuhao Zhao, Kaili Li, Xiaomin Wang, Yu Wang, Shuming Yang |
| Source: | Microsystems & Nanoengineering, Vol 9, Iss 1, Pp 1-9 (2023) |
| Publisher Information: | Nature Publishing Group, 2023. |
| Publication Year: | 2023 |
| Collection: | LCC:Technology LCC:Engineering (General). Civil engineering (General) |
| Subject Terms: | Technology, Engineering (General). Civil engineering (General), TA1-2040 |
| More Details: | Abstract Flexible photodetectors are fundamental components for developing wearable systems, which can be widely used for medical detection, environmental monitoring and flexible imaging. However, compared with 3D materials, low-dimensional materials have degraded performance, a key challenge for current flexible photodetectors. Here, a high-performance broadband photodetector has been proposed and fabricated. By combining the high mobility of graphene (Gr) with the strong light–matter interactions of single-walled carbon nanotubes (SWCNTs) and molybdenum disulfide (MoS2), the flexible photodetector exhibits a greatly improved photoresponse covering the visible to near-infrared range. Additionally, a thin layer of gadolinium iron garnet (Gd3Fe5O12, GdlG) film is introduced to improve the interface of the double van der Waals heterojunctions to reduce the dark current. The SWCNT/GdIG/Gr/GdIG/MoS2 flexible photodetector exhibits a high photoresponsivity of 47.375 A/W and a high detectivity of 1.952 × 1012 Jones at 450 nm, a high photoresponsivity of 109.311 A/W and a high detectivity of 4.504 × 1012 Jones at 1080 nm, and good mechanical stability at room temperature. This work demonstrates the good capacity of GdIG-assisted double van der Waals heterojunctions on flexible substrates and provides a new solution for constructing high-performance flexible photodetectors. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2055-7434 86498789 |
| Relation: | https://doaj.org/toc/2055-7434 |
| DOI: | 10.1038/s41378-023-00548-6 |
| Access URL: | https://doaj.org/article/5dc146fa2c86498789b7695b5790899a |
| Accession Number: | edsdoj.5dc146fa2c86498789b7695b5790899a |
| Database: | Directory of Open Access Journals |
| ISSN: | 20557434 86498789 |
|---|---|
| DOI: | 10.1038/s41378-023-00548-6 |
| Published in: | Microsystems & Nanoengineering |
| Language: | English |