journal article·2024-03Open access

Interfacial Charge Transfer for Enhancing Nonlinear Saturable Absorption in WS2/graphene Heterostructure

Yiduo Wang, Yingwei Wang, Changyong Lan, Li Zhou, Jianlong Kang, Wanxin Zheng, Tianyu Xue, Yejun Li, Xiaoming Yuan, Si Xiao, Heping Li, Jun He

Advanced Science· Volume 11· Issue 12

Abstract

Abstract Interlayer charge‐transfer (CT) in 2D atomically thin vertical stacks heterostructures offers an unparalleled new approach to regulation of device performance in optoelectronic and photonics applications. Despite the fact that the saturable absorption (SA) in 2D heterostructures involves highly efficient optical modulation in the space and time domain, the lack of explicit SA regulation mechanism at the nanoscale prevents this feature from realizing nanophotonic modulation. Here, the enhancement of SA response via CT in WS2/graphene vertical heterostructure is proposed and the related mechanism is demonstrated through simulations and experiments. Leveraging this mechanism, CT‐induced SA enhancement can be expanded to a wide range of nonlinear optical modulation applications for 2D materials. The results suggest that CT between 2D heterostructures enables efficient nonlinear optical response regulation.
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Research context

OpenAlex topics: Advanced Fiber Laser Technologies · Photonic and Optical Devices · Nonlinear Optical Materials Studies

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

Affiliations

Hunan Key Laboratory of Nanophotonics and Devices School of Physics and Electronics Central South University Changsha 410083 China

Hunan Key Laboratory for Super‐microstructure and Ultrafast Process School of Physics and Electronics Central South University Changsha 410083 China

State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 China

Center for High‐Pressure Science State Key Lab of Metastable Materials Science and Technology Yanshan University Qinhuangdao 066004 China

Funding

Natural Science Foundation of Hunan Province · National Natural Science Foundation of China · National Key Research and Development Program of China

References (49)

Show source-provided references
1. 10.1038/nphoton.2016.1510.1038/nphoton.2016.15 ↗
2. 10.1038/nphoton.2013.30410.1038/nphoton.2013.304 ↗
3. 10.1038/nature0193810.1038/nature01938 ↗
4. 10.1109/2944.57174310.1109/2944.571743 ↗
5. 10.1038/nphoton.2013.28010.1038/nphoton.2013.280 ↗
6. 10.1002/lpor.20220073310.1002/lpor.202200733 ↗
7. 10.29026/oea.2023.22016210.29026/oea.2023.220162 ↗
8. 10.1039/D1NR03639D10.1039/D1NR03639D ↗
9. 10.1007/s11771-021-4846-z10.1007/s11771-021-4846-z ↗
10. 10.1007/s11771-021-4850-310.1007/s11771-021-4850-3 ↗
11. 10.1002/adfm.20090100710.1002/adfm.200901007 ↗
12. 10.1038/nphoton.2010.18610.1038/nphoton.2010.186 ↗
13. 10.1021/nl903868w10.1021/nl903868w ↗
14. 10.1126/science.123554710.1126/science.1235547 ↗
15. 10.1038/ncomms662210.1038/ncomms6622 ↗
16. 10.1038/nphys256410.1038/nphys2564 ↗
17. 10.1038/ncomms1217410.1038/ncomms12174 ↗
18. 10.1126/sciadv.aax995810.1126/sciadv.aax9958 ↗
19. 10.1002/advs.20200383410.1002/advs.202003834 ↗
20. 10.1002/advs.20200005810.1002/advs.202000058 ↗
21. 10.1126/sciadv.abd906110.1126/sciadv.abd9061 ↗
22. 10.1021/acs.nanolett.2c0479510.1021/acs.nanolett.2c04795 ↗
23. 10.3788/AOS202141.201600210.3788/AOS202141.2016002 ↗
24. 10.1016/j.apsusc.2019.02.18810.1016/j.apsusc.2019.02.188 ↗
25. 10.1021/acsnano.8b0623610.1021/acsnano.8b06236 ↗
26. 10.1021/acsphotonics.7b0029610.1021/acsphotonics.7b00296 ↗
27. 10.1103/PhysRevB.83.15341010.1103/PhysRevB.83.153410 ↗
28. 10.1021/acsnano.0c0439010.1021/acsnano.0c04390 ↗
29. 10.1021/nn305275h10.1021/nn305275h ↗
30. 10.1002/adom.20200114710.1002/adom.202001147 ↗
31. 10.1039/C5NR08384B10.1039/C5NR08384B ↗
32. Froehlicher G. · Phys. Rev. X · 2018 · 8
33. 10.1002/adma.20200285410.1002/adma.202002854 ↗
34. 10.1103/PhysRevLett.98.16680210.1103/PhysRevLett.98.166802 ↗
35. 10.1021/jp301402u10.1021/jp301402u ↗
36. 10.1126/sciadv.aay076110.1126/sciadv.aay0761 ↗
37. 10.1038/s41467-020-17728-x10.1038/s41467-020-17728-x ↗
38. 10.1103/PhysRevLett.108.16740110.1103/PhysRevLett.108.167401 ↗
39. 10.1088/0953-8984/25/31/31420110.1088/0953-8984/25/31/314201 ↗
40. 10.1039/C9MH01923E10.1039/C9MH01923E ↗
41. 10.1021/acs.nanolett.6b0444910.1021/acs.nanolett.6b04449 ↗
42. 10.1021/acsnano.7b0153710.1021/acsnano.7b01537 ↗
43. 10.1103/PhysRevB.105.07541310.1103/PhysRevB.105.075413 ↗
44. 10.1364/OE.22.00724910.1364/OE.22.007249 ↗
45. 10.1039/C6NR09235G10.1039/C6NR09235G ↗
46. 10.1007/s12274-010-0082-910.1007/s12274-010-0082-9 ↗
47. 10.1016/j.apsusc.2020.14740910.1016/j.apsusc.2020.147409 ↗
48. 10.1021/acs.nanolett.7b0342910.1021/acs.nanolett.7b03429 ↗
49. 10.1126/sciadv.abo267510.1126/sciadv.abo2675 ↗