journal article·2024-08-13

Silicon Waveguide-Integrated Platinum Telluride Midinfrared Photodetector with High Responsivity and High Speed

Lingxiao Ma, Shuo Lin, Hui Ma, Jie Liao, Yuting Ye, Jialing Jian, Junying Li, Pengjun Wang, Shixun Dai, Ting He, Jiacheng Wang, Tao Jin, Jianghong Wu, Yalan Si, Jun Li, Jianyi Yang, Lan Li, Hongtao Lin, Weiwei Chen

ACS Nano· Volume 18· Issue 32
Publisher page

Abstract

The detection of mid-infrared light, covering a variety of molecular vibrational spectra, is critical for both civil and military purposes. Recent studies have highlighted the potential of two-dimensional topological semimetals for mid-infrared detection due to their advantages, including van der Waals (vdW) stacking and gapless electronic structures. Among them, mid-infrared photodetectors based on type-II Dirac semimetals have been less studied. In this paper, we present a silicon waveguide integrated type-II Dirac semimetal platinum telluride (PtTe 2 ) mid-infrared photodetector, and further improve detection performance by using PtTe 2 -graphene heterostructure. For the fabricated silicon waveguide-integrated PtTe 2 photodetector, with an external bias voltage of −10 mV and an input optical power of 86 nW, the measured responsivity is 2.7 A/W at 2004 nm and a 3 dB bandwidth of 0.6 MHz is realized. For the fabricated silicon waveguide-integrated PtTe 2 -graphene photodetector, as the external bias voltage and input optical power are 0.5 V and 0.13 μW, a responsivity of 5.5 A/W at 2004 nm and a 3 dB bandwidth of 35 MHz are obtained. An external quantum efficiency of 119% can be achieved at an input optical power of 0.376 μW.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Semiconductor Detectors and Materials · Photonic and Optical Devices · Semiconductor Quantum Structures and Devices

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, China

State Key Laboratory of Modern Optical Instrumentation, College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310024, China

College of Electrical and Electronic Engineering, Wenzhou University, Wenzhou 325035, China

Laboratory of Infrared Materials and Devices, The Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China

Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China

State Key Laboratory of Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China

Funding

Natural Science Foundation of Ningbo Municipality · Westlake University · K. C. Wong Magna Fund in Ningbo University · National Natural Science Foundation of China · Youth Science and Technology Innovation Leading Talent Project of Ningbo · Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, Westlake University · Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University · State Key Laboratory of Infrared Physics

References (38)

Show source-provided references
1. 10.1016/j.mattod.2021.09.02110.1016/j.mattod.2021.09.021 ↗
2. 10.1002/adfm.20211197010.1002/adfm.202111970 ↗
3. 10.1002/inf2.1214810.1002/inf2.12148 ↗
4. 10.1038/s41377-021-00551-410.1038/s41377-021-00551-4 ↗
5. 10.1002/smsc.20200005310.1002/smsc.202000053 ↗
6. 10.1038/nnano.2014.21510.1038/nnano.2014.215 ↗
7. 10.1002/advs.20200383410.1002/advs.202003834 ↗
8. 10.1002/adom.20200170810.1002/adom.202001708 ↗
9. 10.1021/acsami.2c0109410.1021/acsami.2c01094 ↗
10. 10.1088/2040-8986/aaadc510.1088/2040-8986/aaadc5 ↗
11. 10.1016/j.spmi.2018.06.05910.1016/j.spmi.2018.06.059 ↗
12. 10.1002/adom.20200033710.1002/adom.202000337 ↗
13. 10.1021/acsphotonics.1c0116810.1021/acsphotonics.1c01168 ↗
14. 10.1021/acsphotonics.2c0024410.1021/acsphotonics.2c00244 ↗
15. 10.1038/s41566-023-01309-710.1038/s41566-023-01309-7 ↗
16. 10.1038/nphoton.2015.2310.1038/nphoton.2015.23 ↗
17. 10.1002/lpor.20190003210.1002/lpor.201900032 ↗
18. 10.3390/nano1207108310.3390/nano12071083 ↗
19. 10.1364/OE.43855510.1364/OE.438555 ↗
20. 10.1021/acs.jpclett.3c0268510.1021/acs.jpclett.3c02685 ↗
21. 10.1021/acsphotonics.1c0162210.1021/acsphotonics.1c01622 ↗
22. 10.1016/j.surfin.2023.10367010.1016/j.surfin.2023.103670 ↗
23. 10.1021/acsanm.2c0142110.1021/acsanm.2c01421 ↗
24. 10.1021/acsnano.8b0189710.1021/acsnano.8b01897 ↗
25. 10.1109/TED.2022.320885410.1109/TED.2022.3208854 ↗
26. 10.1002/adma.20200441210.1002/adma.202004412 ↗
27. 10.1021/acsnano.8b0947610.1021/acsnano.8b09476 ↗
28. 10.1002/inf2.1249910.1002/inf2.12499 ↗
29. 10.1088/2053-1583/ab8d8210.1088/2053-1583/ab8d82 ↗
30. 10.1002/adom.20220144310.1002/adom.202201443 ↗
31. 10.1021/acsnano.2c0527810.1021/acsnano.2c05278 ↗
32. 10.1515/nanoph-2019-054210.1515/nanoph-2019-0542 ↗
33. 10.1063/5.009162510.1063/5.0091625 ↗
34. 10.1021/acs.nanolett.2c0209910.1021/acs.nanolett.2c02099 ↗
35. 10.1021/acsphotonics.0c0123310.1021/acsphotonics.0c01233 ↗
36. 10.1021/acsphotonics.1c0151710.1021/acsphotonics.1c01517 ↗
37. 10.1088/1674-4926/44/11/11200110.1088/1674-4926/44/11/112001 ↗
38. 10.1109/LED.2021.308770410.1109/LED.2021.3087704 ↗