Pd nanoparticle size effects in localized surface plasmon-enhanced diamond photodetectors
Source abstract
Abstract
Abstract Localized surface plasmon-enhanced diamond UV photodetectors with different diameters of Pd nanoparticles (NPs) had been successfully fabricated. Four Pd NPs with diameters of 20, 40, 60, 70 nm were deposited on diamond surfaces, respectively, and their height was 20 nm. Ti/Ni/Au metal electrodes were patterned on samples surfaces to form UV photodetectors. According to photoelectric performance test results, responsivities were enhanced with sizes of particles increasing at UV region, and diamond photodetector with 40 nm NPs showed the highest photocurrent-to-dark current ratio and UV-to-visible rejection ratio. Compared with pure diamond photodetectors, the responsivity and UV/visible rejection ratio Pd modified detectors can improve up to 3250 and 34 times, respectively. Plasmonic scattering effect was used to explain this phenomenon, and it is further confirmed by the simulated scattering cross-section.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanowire Synthesis and Applications · Gold and Silver Nanoparticles Synthesis and Applications · Thin-Film Transistor Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
Show source-provided references
1. (Al, In, Ga) N-based photodetectors. Some materials issues10.1002/pssb.200675618 ↗
2. Diamond based photodetectors for solar-blind communication10.1364/OE.27.029962 ↗
3. Thermally stable solar-blind diamond UV photodetector10.1016/j.diamond.2006.08.009 ↗
4. Radiometric characteristics of new diamond PIN photodiodes10.1088/0957-0233/17/4/042 ↗
5. Extreme sensitivity displayed by single crystal diamond deep ultraviolet photoconductive devices10.1063/1.3273378 ↗
6. Fabrication of UV photodetector on TiO2/diamond film10.1038/srep14420 ↗
7. Effect of depth of buried-in tungsten electrodes on single crystal diamond photodetector10.1557/adv.2016.84 ↗
8. Self-powered diamond/b-Ga2O3 photodetectors for solar-blind imaging10.1039/C8TC01122B ↗
9. Diamond-based all-carbon photodetectors for solar-blind imaging10.1002/adom.201800068 ↗
10. Highly sensitive UV photodetectors fabricated using high-quality single-crystalline CVD diamond films10.1016/j.diamond.2004.01.031 ↗
11. Al plasmon-enhanced diamond solar-blind UV photodetector by coupling of plasmon and excitons10.1080/10667857.2016.1204511 ↗
12. Enhanced ultraviolet absorption in diamond surface via localized surface plasmon resonance in palladium NPs10.1016/j.apsusc.2018.09.087 ↗
13. Iridium size effects in localized surface plasmon-enhanced diamond UV photodetectors10.1016/j.apsusc.2019.04.268 ↗
14. Improved performance of in (Ga) As/GaAs quantum dot solar cells via light scattering by NPs10.1063/1.3213366 ↗
15. Nanoparticle-induced light scattering for improved performance of quantum-well solar cells10.1063/1.2973988 ↗
16. Light scattering into silicon-on-insulator waveguide modes by random and periodic gold nanodot arrays10.1063/1.3100214 ↗
17. Plasmonic nanoparticle enhanced photocurrent in GaN/InGaN/GaN quantum well solar cells10.1063/1.3377900 ↗
18. Design of plasmonic thin‐film solar cells with broadband absorption enhancements10.1002/adma.200900331 ↗
19. Plasmonics in the ultraviolet with aluminum, gallium, magnesium and rhodium10.3390/app8010064 ↗
20. Bohren · 2008
21. Angle-resolved surface-enhanced Raman scattering on metallic nanostructured plasmonic crystals10.1021/nl051618f ↗
22. Atwater, and albert polman, plasmonics for improved photovoltaic devices
23. Coupled surface plasmon interference lithography based on a metal-bounded dielectric structure10.1063/1.3517793 ↗
24. Design principles for particle plasmon enhanced solar cells10.1063/1.3021072 ↗
25. Growth and characterization of hillock-free high quality homoepitaxial diamond films10.1016/S0925-9635(00)00295-8 ↗
26. Ultraviolet detectors based on ultraviolet-ozone modified hydrogenated diamond surfaces