Plasmonic assisted enhanced photoresponse of metal nanoparticle loaded ZnO thin film ultraviolet photodetectors

Rajan, Akshta; Kaur, Gurpreet; Paliwal, Ayushi; Yadav, Harish Kumar; Gupta, Vinay; Tomar, Monika

doi:10.1088/0022-3727/47/42/425102

Cited by 45 publications

(29 citation statements)

References 52 publications

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“…Recently, the novel properties of Au nanostructures have been explored for UV PDs with enhanced performance . The combination of metallic nanostructures and ZnO nanoparticles can improve the photoelectric performance of ZnO film PDs . Viter et al prepared Si/ZnO thin films modified with ultrathin gold layers of different thicknesses by the combination of ALD and physical vapor deposition (sputtering).…”

Section: Introductionmentioning

confidence: 99%

“…[44] The combination of metallic nanostructures and ZnO nanoparticles can improve the photoelectric performance of ZnO film PDs. [45] Viter et al prepared Si/ZnO thin films modified with ultrathin gold layers of different thicknesses by the combination of ALD and physical vapor deposition (sputtering). The influence of localized plasmons on the optical properties of Au/ZnO nanostructures was demonstrated.…”

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confidence: 99%

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ZnO Film UV Photodetector with Enhanced Performance: Heterojunction with CdMoO₄ Microplates and the Hot Electron Injection Effect of Au Nanoparticles

Ouyang

Teng

Jiang

et al. 2017

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114

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A novel CdMoO -ZnO composite film is prepared by spin-coating CdMoO microplates on ZnO film and is constructed as a heterojunction photodetector (PD). With an optimized loading amount of CdMoO microplates, this composite film PD achieves a ≈18-fold higher responsivity than pure ZnO film PD at 5 V bias under 350 nm (0.15 mW cm ) UV light illumination, and its decay time shortens to half of the original value. Furthermore, Au nanoparticles are then deposited to modify the CdMoO -ZnO composite film, and the as-constructed photodetector with an optimized deposition time of Au nanoparticles yields an approximately two-fold higher photocurrent under the same condition, and the decay time reduces by half. The introduced CdMoO microplates form type-II heterojunctions with ZnO film and improve the photoelectric performance. The hot electrons from Au nanoparticles are injected into the CdMoO -ZnO composite film, leading to the increased photocurrent. When the light is off, the Schottky barriers formed between Au nanoparticles and CdMoO -ZnO composite film block the carrier transportation and accelerate the decay process of current. The study on Au-nanoparticle-modified CdMoO -ZnO composite film provides a facile method to construct ZnO film based PD with novel structure and high photoelectric performance.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

ZnO Film UV Photodetector with Enhanced Performance: Heterojunction with CdMoO₄ Microplates and the Hot Electron Injection Effect of Au Nanoparticles

Ouyang

Teng

Jiang

et al. 2017

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114

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“…This is caused by the SPR effect which is widely used to explain the PL enhancement phenomenon in ZnO with metal NPs. 13,20,21 The excitation spectra of the BET, ZAuB-0, ZAuB-1, ZAuB-2, and ZAuB-3 nanocomposite thin films on the fused silica substrates are obtained by monitoring the emission intensity from the 5 D 0 → 7 F 2 transition (at 617 nm) of Eu 3+ ions. As shown in Figure 3C, the excitation spectra of each sample consists of two parts, namely, one host intrinsic broad band at 300-390 nm and two intra-4f transitions ( 7 F 0 → 5 L 6 and 7 F 0 → 5 D 2 ) of Eu 3+ ions at 394 and 465 nm.…”

Section: Resultsmentioning

confidence: 99%

Enhanced red photoluminescence in a nanocomposite thin film composed of Bi_3.6Eu_0.4Ti₃O₁₂ and Au‐decorated ZnO nanorods

Wang

et al. 2019

J Am Ceram Soc

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This paper firstly reports on a series of nanocomposite thin films composed of a ferroelectric Bi3.6Eu0.4Ti3O12 (BET) and Au‐decorated ZnO nanorods (Au‐ZnO), which are prepared by a ultraviolet‐induced hybrid chemical solution method. The effects of Au nanoparticles (NPs) and ZnO nanorods on the significantly red photoluminescence enhancement of Eu3+ ions are investigated. The results indicate that the larger near band edge (NBE) emission of ZnO by the SPR effect of Au NPs can make an energy transfer from ZnO to Eu3+ ions. Simultaneously, the depression of the deep‐level emission of ZnO can improve the monochromaticity in the visible range. Furthermore, the dielectric and ferroelectric properties of the thin films are also enhanced. The findings suggest that the nanocomposite thin films of a ferroelectric BET and Au‐ZnO could be used as a multifunctional material in the ferroelectric optoelectronic devices with bright light emitting.

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“…More detailed comparison performed for the photoexcitation at 480 nm, indicates that the mechanical mixture of Au-NP and D-particle colloids, preserving the concentration of D-particles, results only in 30% reduction of PL intensity, while the decorated D-particles exhibit corresponding 60% reduction. Such substantial damping of PL intensity indicates direct electrical contact between the diamond and metallic species, resulting in non-radiative sink of photo-excited carriers via their tunneling into the metallic nanoparticles [10,11].…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Fabrication of Hybrid Plasmonic-dielectric Nanomaterial Based on Gold-diamond Clusters

Tung¹,

Thuong²,

Liêm³

et al. 2017

Comm. in Phys.

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Hybrid plasmonic-dielectric materials were fabricated by micro-discharge through water sols of sub-micrometer-sized diamonds mixed with HAuCl 4 acid. Primary characterization of their deposits on a silicon wafer surface by means of electron microscopy and energy-dispersive x-ray spectroscopy indicate close proximity of gold nanoparticles and diamond particles, which is supported by photoluminescence studies demonstrating strong -almost two-fold -damping of diamond luminescence owing to the attachment of gold nanoparticles. UV-near IR spectroscopy of their sols consistently exhibits small red spectral shifts for the fabricated nanomaterials, comparing to bare gold nanoparticles.

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Plasmonic assisted enhanced photoresponse of metal nanoparticle loaded ZnO thin film ultraviolet photodetectors

Cited by 45 publications

References 52 publications

ZnO Film UV Photodetector with Enhanced Performance: Heterojunction with CdMoO₄ Microplates and the Hot Electron Injection Effect of Au Nanoparticles

ZnO Film UV Photodetector with Enhanced Performance: Heterojunction with CdMoO₄ Microplates and the Hot Electron Injection Effect of Au Nanoparticles

Enhanced red photoluminescence in a nanocomposite thin film composed of Bi_3.6Eu_0.4Ti₃O₁₂ and Au‐decorated ZnO nanorods

Electrochemical Fabrication of Hybrid Plasmonic-dielectric Nanomaterial Based on Gold-diamond Clusters

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Plasmonic assisted enhanced photoresponse of metal nanoparticle loaded ZnO thin film ultraviolet photodetectors

Cited by 45 publications

References 52 publications

ZnO Film UV Photodetector with Enhanced Performance: Heterojunction with CdMoO4 Microplates and the Hot Electron Injection Effect of Au Nanoparticles

ZnO Film UV Photodetector with Enhanced Performance: Heterojunction with CdMoO4 Microplates and the Hot Electron Injection Effect of Au Nanoparticles

Enhanced red photoluminescence in a nanocomposite thin film composed of Bi3.6Eu0.4Ti3O12 and Au‐decorated ZnO nanorods

Electrochemical Fabrication of Hybrid Plasmonic-dielectric Nanomaterial Based on Gold-diamond Clusters

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Product

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ZnO Film UV Photodetector with Enhanced Performance: Heterojunction with CdMoO₄ Microplates and the Hot Electron Injection Effect of Au Nanoparticles

ZnO Film UV Photodetector with Enhanced Performance: Heterojunction with CdMoO₄ Microplates and the Hot Electron Injection Effect of Au Nanoparticles

Enhanced red photoluminescence in a nanocomposite thin film composed of Bi_3.6Eu_0.4Ti₃O₁₂ and Au‐decorated ZnO nanorods