Ultra-high photo responsivity and self-powered photodetector in broad spectral range based on non-layered MnSe/WSe2 heterojunction
Due to its good p-type semiconductor characteristics, MnSe has a great application prospect in high-performance electronic and optoelectronic devices. However, heterojunctions of MnSe still need to be deeply studied to improve its electrical and photoelectric properties. Here, it is reported that th...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-04-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2023.1162166/full |
| _version_ | 1797847206978387968 |
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| author | Shuting Zhao Xiurong Ma Xuanhao Cao Zehong Lei Yibin Yang Lili Tao Zhaoqiang Zheng Xing Feng Yu Zhao |
| author_facet | Shuting Zhao Xiurong Ma Xuanhao Cao Zehong Lei Yibin Yang Lili Tao Zhaoqiang Zheng Xing Feng Yu Zhao |
| author_sort | Shuting Zhao |
| collection | DOAJ |
| description | Due to its good p-type semiconductor characteristics, MnSe has a great application prospect in high-performance electronic and optoelectronic devices. However, heterojunctions of MnSe still need to be deeply studied to improve its electrical and photoelectric properties. Here, it is reported that the two-dimensional (2D) MnSe/WSe2 heterojunction is structured by the non-layered MnSe nanosheets synthesized by chemical vapor deposition (CVD) method and the mechanically exfoliated layered WSe2. The heterojunction device exhibits a rectification effect and a current on/off ratio of 6,557. Meanwhile, it has a broad spectral range response from ultraviolet (UV) to short-wave infrared radiation (SWIR) (300–2,200 nm), and achieves an ultra-high responsivity of 156 A/W, along with an excellent detectivity of 2.21 × 1012 jones, and an outstanding external quantum efficiency (EQE) of 36,400%. Moreover, the type II band alignment and the built-in potential in the MnSe/WSe2 heterojunction can facilitate the separation of the photoexcited electron-hole pairs, which enables the significant photovoltaic characteristics and self-powered photoswitching response. This work reveals the novel performance of the 2D MnSe/WSe2 heterojunction and a great potential in photoswitching, photodetector, and photovoltaic applications. |
| first_indexed | 2024-04-09T18:07:34Z |
| format | Article |
| id | doaj.art-1537b44a53f1482fb3df40f3f4c09bc0 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-04-09T18:07:34Z |
| publishDate | 2023-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-1537b44a53f1482fb3df40f3f4c09bc02023-04-14T05:16:48ZengFrontiers Media S.A.Frontiers in Materials2296-80162023-04-011010.3389/fmats.2023.11621661162166Ultra-high photo responsivity and self-powered photodetector in broad spectral range based on non-layered MnSe/WSe2 heterojunctionShuting ZhaoXiurong MaXuanhao CaoZehong LeiYibin YangLili TaoZhaoqiang ZhengXing FengYu ZhaoDue to its good p-type semiconductor characteristics, MnSe has a great application prospect in high-performance electronic and optoelectronic devices. However, heterojunctions of MnSe still need to be deeply studied to improve its electrical and photoelectric properties. Here, it is reported that the two-dimensional (2D) MnSe/WSe2 heterojunction is structured by the non-layered MnSe nanosheets synthesized by chemical vapor deposition (CVD) method and the mechanically exfoliated layered WSe2. The heterojunction device exhibits a rectification effect and a current on/off ratio of 6,557. Meanwhile, it has a broad spectral range response from ultraviolet (UV) to short-wave infrared radiation (SWIR) (300–2,200 nm), and achieves an ultra-high responsivity of 156 A/W, along with an excellent detectivity of 2.21 × 1012 jones, and an outstanding external quantum efficiency (EQE) of 36,400%. Moreover, the type II band alignment and the built-in potential in the MnSe/WSe2 heterojunction can facilitate the separation of the photoexcited electron-hole pairs, which enables the significant photovoltaic characteristics and self-powered photoswitching response. This work reveals the novel performance of the 2D MnSe/WSe2 heterojunction and a great potential in photoswitching, photodetector, and photovoltaic applications.https://www.frontiersin.org/articles/10.3389/fmats.2023.1162166/full2D non-layered MnSeMnSe/WSe2 heterojunctionphotodetectorself-powered photoswitchingrectification |
| spellingShingle | Shuting Zhao Xiurong Ma Xuanhao Cao Zehong Lei Yibin Yang Lili Tao Zhaoqiang Zheng Xing Feng Yu Zhao Ultra-high photo responsivity and self-powered photodetector in broad spectral range based on non-layered MnSe/WSe2 heterojunction Frontiers in Materials 2D non-layered MnSe MnSe/WSe2 heterojunction photodetector self-powered photoswitching rectification |
| title | Ultra-high photo responsivity and self-powered photodetector in broad spectral range based on non-layered MnSe/WSe2 heterojunction |
| title_full | Ultra-high photo responsivity and self-powered photodetector in broad spectral range based on non-layered MnSe/WSe2 heterojunction |
| title_fullStr | Ultra-high photo responsivity and self-powered photodetector in broad spectral range based on non-layered MnSe/WSe2 heterojunction |
| title_full_unstemmed | Ultra-high photo responsivity and self-powered photodetector in broad spectral range based on non-layered MnSe/WSe2 heterojunction |
| title_short | Ultra-high photo responsivity and self-powered photodetector in broad spectral range based on non-layered MnSe/WSe2 heterojunction |
| title_sort | ultra high photo responsivity and self powered photodetector in broad spectral range based on non layered mnse wse2 heterojunction |
| topic | 2D non-layered MnSe MnSe/WSe2 heterojunction photodetector self-powered photoswitching rectification |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2023.1162166/full |
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