journal article·2023-04-25

Silicon Waveguide-Integrated Carbon Nanotube Photodetector with Low Dark Current and 48 GHz Bandwidth

Hongyan Zhao, Leijing Yang, Weifeng Wu, Xiang Cai, Fan Yang, Haojin Xiu, Yongjun Wang, Qi Zhang, Xiangjun Xin, Fan Zhang, Lian-Mao Peng, Sheng Wang

ACS Nano· Volume 17· Issue 8
Publisher page

Abstract

Low-dimensional materials with excellent optoelectronic properties and complementary metal-oxide-semiconductor (CMOS) process compatibility have the potential to construct high-performance photodetectors used in a cost-efficient monolithic or hybrid integrated optical communication system. Carbon nanotubes (CNTs) have attracted a lot of attention due to special geometric structure and broad band response, high optical absorption coefficient, ps-level intrinsic light response, high carrier mobility and wafer-scaled production process. Here, we demonstrated a high-performance waveguide-integrated CNT photodetector with asymmetric palladium (Pd) and hafnium (Hf) contact electrodes. The ideal photodetector structure was realized via comparing with simulation and experimental results, where the optimized device achieved a high 3 dB bandwidth ∼48 GHz at 0 V, as well as a responsivity ∼73.62 mA/W and dark current ∼0.157 μA at -2 V bias voltage. This waveguide-integrated CNT photodetector with low dark current and high bandwidth is helpful for next-generation optical communication and high-speed optical interconnects.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Photonic and Optical Devices · Mechanical and Optical Resonators · Advanced Photonic Communication Systems

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

Affiliations

State Key Laboratory of Information Photonics and Optical Communications and School of Electronic Engineering, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China

Beijing Key Laboratory of Space-Ground Interconnection and Convergence, Beijing University of Posts and Telecommunications (BUPT), Beijing 100876, China

Key Laboratory for the Physics and Chemistry of Nanodevices, School of Electronics and Research Center for Carbon-based Electronics, Peking University, Beijing 100871, China

State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics, Peking University, Beijing 100871, China

Funding

Ministry of Science and Technology of the People's Republic of China · Central University Basic Research Fund of China · State Key Laboratory of Advanced Optical Communication Systems and Networks · National Natural Science Foundation of China

References (48)

Show source-provided references
1. 10.1109/5.86768710.1109/5.867687 ↗
2. 10.1109/JPROC.2009.201429810.1109/JPROC.2009.2014298 ↗
3. 10.3390/nano1203048510.3390/nano12030485 ↗
4. 10.1364/OE.43232410.1364/OE.432324 ↗
5. 10.1038/nature1645410.1038/nature16454 ↗
6. 10.1038/s41586-018-0028-z10.1038/s41586-018-0028-z ↗
7. 10.1038/s41928-019-0330-210.1038/s41928-019-0330-2 ↗
8. 10.1038/s41566-021-00893-w10.1038/s41566-021-00893-w ↗
9. 10.1364/OE.17.00790110.1364/OE.17.007901 ↗
10. 10.1109/JSTQE.2017.273644310.1109/JSTQE.2017.2736443 ↗
11. 10.1364/CLEO_AT.2018.JTh5A.710.1364/CLEO_AT.2018.JTh5A.7 ↗
12. 10.1038/s41377-021-00551-410.1038/s41377-021-00551-4 ↗
13. 10.1515/nanoph-2019-016710.1515/nanoph-2019-0167 ↗
14. 10.1038/nphoton.2015.2310.1038/nphoton.2015.23 ↗
15. 10.1021/acsnano.8b0875810.1021/acsnano.8b08758 ↗
16. 10.1021/acsphotonics.8b0006810.1021/acsphotonics.8b00068 ↗
17. 10.1038/s41699-019-0096-410.1038/s41699-019-0096-4 ↗
18. 10.1038/s41565-019-0602-z10.1038/s41565-019-0602-z ↗
19. 10.1038/nature2299410.1038/nature22994 ↗
20. 10.1021/acsami.6b0693210.1021/acsami.6b06932 ↗
21. 10.1038/s41928-017-0003-y10.1038/s41928-017-0003-y ↗
22. 10.1002/smll.20160039810.1002/smll.201600398 ↗
23. 10.1021/acsami.8b2132510.1021/acsami.8b21325 ↗
24. 10.1021/nn203771u10.1021/nn203771u ↗
25. 10.1038/ncomms1564910.1038/ncomms15649 ↗
26. 10.1021/nn204924n10.1021/nn204924n ↗
27. 10.1002/adma.20130563410.1002/adma.201305634 ↗
28. 10.1038/ncomms658010.1038/ncomms6580 ↗
29. 10.1038/nphoton.2016.7010.1038/nphoton.2016.70 ↗
30. 10.1038/nphoton.2016.17810.1038/nphoton.2016.178 ↗
31. 10.1126/science.112569510.1126/science.1125695 ↗
32. 10.1021/nl034726f10.1021/nl034726f ↗
33. 10.1021/nl103689710.1021/nl1036897 ↗
34. 10.1038/nphoton.2011.25010.1038/nphoton.2011.250 ↗
35. 10.1002/adom.20150023710.1002/adom.201500237 ↗
36. 10.1021/acsnano.6b0504710.1021/acsnano.6b05047 ↗
37. 10.26599/NRE.2023.912005810.26599/NRE.2023.9120058 ↗
38. 10.1021/acsnano.0c0213910.1021/acsnano.0c02139 ↗
39. 10.1021/acsaelm.1c0076710.1021/acsaelm.1c00767 ↗
40. 10.1016/j.dib.2019.10490310.1016/j.dib.2019.104903 ↗
41. 10.1021/am201778x10.1021/am201778x ↗
42. 10.1021/jp901282h10.1021/jp901282h ↗
43. 10.1038/nphoton.2010.4010.1038/nphoton.2010.40 ↗
44. 10.1038/nnano.2009.29210.1038/nnano.2009.292 ↗
45. 10.1038/s41928-021-00594-w10.1038/s41928-021-00594-w ↗
46. 10.1038/nature1006710.1038/nature10067 ↗
47. 10.1038/nphoton.2013.24010.1038/nphoton.2013.240 ↗
48. 10.1038/s41578-018-0040-910.1038/s41578-018-0040-9 ↗