Hybrid MoS2-Plamonic Absorber Covering the Whole Visible Spectrum: Application to Design Transistor Like Photodetectors
Source abstract
Abstract
In this article, a novel MoS2 based wideband absorber is proposed that covers the whole visible spectrum. The structure is composed of a single MoS2 layer on top of a Si/SiO2 distributed Bragg reflector. Coupled Au Nanospheres are utilized on top of the MoS2 layer that broaden the absorption spectrum as a result of the coupling between the plasmonic modes of individual particles. By optimizing the geometrical features of the plasmonic Nano-antennas, a high absorption value reaching more than 80% in the range of 400–600 nm is obtained which decreases to 50% at 700 nm. The application of the proposed structure in designing a wideband visible light photodetector is discussed either.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: 2D Materials and Applications · Plasmonic and Surface Plasmon Research · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (17)
Show source-provided references
1. Yin Z et al (2012) Single-layer MoS2 phototransistors. ACS Nano 6(1):74–80. https://doi.org/10.1021/nn202455710.1021/nn2024557 ↗
2. Choi W et al (2012) High-detectivity multilayer MoS2 phototransistors with spectral response from ultraviolet to infrared. Adv Mater 24(43):5832–5836. https://doi.org/10.1002/adma.20120190910.1002/adma.201201909 ↗
3. Furchi MM et al (2014) Mechanisms of photoconductivity in atomically thin MoS2. Nano Lett 14(11):6165–6170. https://doi.org/10.1021/nl502339q10.1021/nl502339q ↗
4. Lopez-Sanchez O et al (2013) Ultrasensitive photodetectors based on monolayer MoS 2. Nat Nanotechnol 8(7):497–501. https://doi.org/10.1038/NNANO.2013.10010.1038/NNANO.2013.100 ↗
5. Thakar K, Lodha S (2020) Optoelectronic and photonic devices based on transition metal dichalcogenides. Mater Res Express 7(1):014002. https://doi.org/10.1088/2053-1591/ab5c9c10.1088/2053-1591/ab5c9c ↗
6. Li H et al (2015) Emerging energy applications of two-dimensional layered transition metal dichalcogenides. Nano Energy 18:293–305. https://doi.org/10.1016/j.nanoen.2015.10.02310.1016/j.nanoen.2015.10.023 ↗
7. Schwierz F, Pezoldt J, Granzner R (2015) Two-dimensional materials and their prospects in transistor electronics. Nanoscale 7(18):8261–8283. https://doi.org/10.1039/C5NR01052G10.1039/C5NR01052G ↗
8. Wang QH et al (2012) Electronics and optoelectronics of two-dimensional transition metal dichalcogenides. Nat Nanotechnol 7(11):699–712. https://doi.org/10.1038/NNANO.2012.19310.1038/NNANO.2012.193 ↗
9. Ponraj JS et al (2016) Photonics and optoelectronics of two-dimensional materials beyond graphene. Nanotechnology 27(46):462001. https://doi.org/10.1088/0957-4484/27/46/46200110.1088/0957-4484/27/46/462001 ↗
10. Yun WS et al (2012) Thickness and strain effects on electronic structures of transition metal dichalcogenides: 2H-M X 2 semiconductors (M = Mo, W; X = S, Se, Te). Phys Rev B 85(3):033305. https://doi.org/10.1103/PhysRevB.85.03330510.1103/PhysRevB.85.033305 ↗
11. Novoselov KS et al (2005) Two-dimensional atomic crystals. Proceedings of the National Academy of Sciences 102(30):10451–10453. https://doi.org/10.1073/pnas.050284810210.1073/pnas.0502848102 ↗
12. Ullah MS et al (2018) Analysis of optical and electronic properties of MoS2 for optoelectronics and FET applications. AIP Conf Proc 1957:020001. https://doi.org/10.1063/1.503432010.1063/1.5034320 ↗
13. Guo J et al (2019) Near-infrared photodetector based on few-layer MoS2 with sensitivity enhanced by localized surface plasmon resonance. Appl Surf Sci 483:1037–1043. https://doi.org/10.1016/j.apsusc.2019.04.04410.1016/j.apsusc.2019.04.044 ↗
14. Ye L et al (2016) Near-infrared photodetector based on MoS2/black phosphorus heterojunction. Acs Photonics 3(4):692–699. https://doi.org/10.1021/acsphotonics.6b0007910.1021/acsphotonics.6b00079 ↗
15. Hao E, Schatz GC, Hupp JT (2004) Synthesis and optical properties of anisotropic metal nanoparticles. J Fluoresc 14(4):331–341. https://doi.org/10.1023/b:jofl.0000031815.71450.7410.1023/b:jofl.0000031815.71450.74 ↗
16. Zhou K et al (2019) Plasmon-enhanced broadband absorption of MoS 2-based structure using au nanoparticles. Opt Express 27(3):2305–2316. https://doi.org/10.1364/OE.27.00230510.1364/OE.27.002305 ↗
17. Cao J et al (2017) Enhancement of broad-band light absorption in monolayer MoS2 using Ag grating hybrid with distributed Bragg reflector. Superlattices Microstruct 110:26–30. https://doi.org/10.1016/j.spmi.2017.09.00810.1016/j.spmi.2017.09.008 ↗