基于非对称接触界面MoTe2同质结的高性能、宽带、自驱动光电探测器

IF 3.6 2区 物理与天体物理 Q2 PHYSICS, APPLIED
Kangwei Shao, Zhengjin Weng, Haiyan Nan, Chuangzhang Liang, Renxian Qi, Zhangting Wu, Wenhui Wang, Jialing Jian, Shaoqing Xiao, Xiaofeng Gu
{"title":"基于非对称接触界面MoTe2同质结的高性能、宽带、自驱动光电探测器","authors":"Kangwei Shao, Zhengjin Weng, Haiyan Nan, Chuangzhang Liang, Renxian Qi, Zhangting Wu, Wenhui Wang, Jialing Jian, Shaoqing Xiao, Xiaofeng Gu","doi":"10.1063/5.0254935","DOIUrl":null,"url":null,"abstract":"The van der Waals junction of two-dimensional materials has the characteristics of weak interlayer interaction and strong light–mass interaction. The internal electric field formed at the interface of Van der Waals junction promotes the separation and efficient transfer of photogenerated carriers, showing the characteristics of low power consumption, self-drive, high responsiveness, and ultrafast response. Therefore, we fabricate a transverse homojunction photodetector by mechanical stripping. Furthermore, considering the influence of the contact between the two sides of the metal electrodes, we select the metal electrodes corresponding to the matching work function according to the Fermi level with different thicknesses of MoTe2, and two anti-barrier layers are obtained. Finally, a transverse homojunction self-driven photodetector with Au-thin MoTe2-thick MoTe2–Ni/Au structure is fabricated, which improves the photosensitivity and response time, and broadens the spectral detection range. When Vds = 0 V, the rectifier ratio increases to 4.6 × 103, which is 50 times higher than that of symmetrical electrode homojunction. Under zero bias voltage, when the spot area is 3 × 10−9 m2, the photosensitivity reaches 28 mA/W (637 nm), the response time is 38.83/40.17 μs, and the infrared detection is extended to 1550 nm. It has potential applications in optoelectronics and optical signal detection.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"85 1","pages":""},"PeriodicalIF":3.6000,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"High-performance, broadband, and self-driven photodetector based on MoTe2 homojunction with asymmetrical contact interfaces\",\"authors\":\"Kangwei Shao, Zhengjin Weng, Haiyan Nan, Chuangzhang Liang, Renxian Qi, Zhangting Wu, Wenhui Wang, Jialing Jian, Shaoqing Xiao, Xiaofeng Gu\",\"doi\":\"10.1063/5.0254935\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The van der Waals junction of two-dimensional materials has the characteristics of weak interlayer interaction and strong light–mass interaction. The internal electric field formed at the interface of Van der Waals junction promotes the separation and efficient transfer of photogenerated carriers, showing the characteristics of low power consumption, self-drive, high responsiveness, and ultrafast response. Therefore, we fabricate a transverse homojunction photodetector by mechanical stripping. Furthermore, considering the influence of the contact between the two sides of the metal electrodes, we select the metal electrodes corresponding to the matching work function according to the Fermi level with different thicknesses of MoTe2, and two anti-barrier layers are obtained. Finally, a transverse homojunction self-driven photodetector with Au-thin MoTe2-thick MoTe2–Ni/Au structure is fabricated, which improves the photosensitivity and response time, and broadens the spectral detection range. When Vds = 0 V, the rectifier ratio increases to 4.6 × 103, which is 50 times higher than that of symmetrical electrode homojunction. Under zero bias voltage, when the spot area is 3 × 10−9 m2, the photosensitivity reaches 28 mA/W (637 nm), the response time is 38.83/40.17 μs, and the infrared detection is extended to 1550 nm. It has potential applications in optoelectronics and optical signal detection.\",\"PeriodicalId\":8094,\"journal\":{\"name\":\"Applied Physics Letters\",\"volume\":\"85 1\",\"pages\":\"\"},\"PeriodicalIF\":3.6000,\"publicationDate\":\"2025-03-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Physics Letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1063/5.0254935\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics Letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1063/5.0254935","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0

摘要

二维材料的范德华结具有弱层间相互作用和强光-质量相互作用的特点。在范德华结界面处形成的内部电场促进了光生载流子的分离和高效转移,表现出低功耗、自驱动、高响应、超快响应的特点。因此,我们采用机械剥离的方法制作了一个横向同质结光电探测器。此外,考虑到金属电极两侧接触的影响,我们根据不同MoTe2厚度的费米能级选择匹配功函数对应的金属电极,得到了两层防势垒层。最后,制备了具有Au-thin MoTe2-thick MoTe2-Ni /Au结构的横向同质结自驱动光电探测器,提高了光敏性和响应时间,拓宽了光谱探测范围。当Vds = 0 V时,整流比增加到4.6 × 103,是对称电极均结的50倍。在零偏置电压下,当光斑面积为3 × 10−9 m2时,光敏度达到28 mA/W (637 nm),响应时间为38.83/40.17 μs,红外探测范围扩展到1550 nm。它在光电子学和光信号检测方面具有潜在的应用前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High-performance, broadband, and self-driven photodetector based on MoTe2 homojunction with asymmetrical contact interfaces
The van der Waals junction of two-dimensional materials has the characteristics of weak interlayer interaction and strong light–mass interaction. The internal electric field formed at the interface of Van der Waals junction promotes the separation and efficient transfer of photogenerated carriers, showing the characteristics of low power consumption, self-drive, high responsiveness, and ultrafast response. Therefore, we fabricate a transverse homojunction photodetector by mechanical stripping. Furthermore, considering the influence of the contact between the two sides of the metal electrodes, we select the metal electrodes corresponding to the matching work function according to the Fermi level with different thicknesses of MoTe2, and two anti-barrier layers are obtained. Finally, a transverse homojunction self-driven photodetector with Au-thin MoTe2-thick MoTe2–Ni/Au structure is fabricated, which improves the photosensitivity and response time, and broadens the spectral detection range. When Vds = 0 V, the rectifier ratio increases to 4.6 × 103, which is 50 times higher than that of symmetrical electrode homojunction. Under zero bias voltage, when the spot area is 3 × 10−9 m2, the photosensitivity reaches 28 mA/W (637 nm), the response time is 38.83/40.17 μs, and the infrared detection is extended to 1550 nm. It has potential applications in optoelectronics and optical signal detection.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Applied Physics Letters
Applied Physics Letters 物理-物理:应用
CiteScore
6.40
自引率
10.00%
发文量
1821
审稿时长
1.6 months
期刊介绍: Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信