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Title: MoS 2 Nanoflake and ZnO Quantum Dot Blended Active Layers on AuPd Nanoparticles for UV Photodetectors

Journal Article · · ACS Applied Nano Materials
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [2]; ORCiD logo [3];  [4]; ORCiD logo [1]
  1. Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu, Seoul 01897, Republic of Korea
  2. Advanced Analysis Center, Korea Institute of Science and Technology (KIST), 14 Gil 5 Hwarang-ro, Seongbuk-gu, Seoul 02792, Republic of Korea
  3. School of Science, Wuhan University of Technology, Wuhan, Hubei 430070, China
  4. Center for Integrated Nanotechnologies (CINT), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States

A hybrid UV photodetector incorporating a blended active layer of molybdenum disulfate (MoS2) nanoflakes and zinc oxide (ZnO) quantum dots (QDs) on the Au core–shelled AuPd hybrid NPs (HNPs), namely, the MoS2*ZnO/HNP configuration, is demonstrated for the first time. In the proposed configuration, the hot carriers generated by the strong localized surface plasmon resonance (LSPR) of Au-shelled AuPd HNPs can be effectively collected at the ZnO QD’s conduction band. The blended MoS2 nanoflakes also successfully absorb the high-energy photons, offering additional photocarriers. The optimized device demonstrates an increased photocurrent (Iph) of 1.49 × 10-3 A at 10 V under 54.9 mW/mm2, which offers improved performance parameters of a photoresponsivity (R) of 2,525 mA/W, a detectivity (D) of 7.251 × 1011 jones, and an external quantum efficiency (EQE) of 813% at 0.34 mW/mm2. The result is one of the best ZnO-based photodetectors demonstrated so far. The enhanced photocurrent is due to the greater photocarrier injections by the blended active layer of MoS2 nanoflakes and ZnO QDs on the Au-shelled AuPd HNPs. The finite-difference time-domain (FDTD) simulation confirms the significantly increased maximum local e-field intensity and hotspots of the MoS2*ZnO/HNP blended active layer.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); National Research Foundation of Korea; National Natural Science Foundation of China
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
89233218CNA000001; NRF-2018R1A6A1A03025242; NRF-2019R1A2C4069438; 2018R1A6A1A03025242
OSTI ID:
1858693
Alternate ID(s):
OSTI ID: 1856176
Report Number(s):
LA-UR-22-20997
Journal Information:
ACS Applied Nano Materials, Journal Name: ACS Applied Nano Materials Vol. 5 Journal Issue: 3; ISSN 2574-0970
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (52)

Size-Controlled Graphene Nanodot Arrays/ZnO Hybrids for High-Performance UV Photodetectors journal November 2017
Enhanced Localized Surface Plasmon Resonance of Fully Alloyed AgAuPdPt, AgAuPt, AuPt, AgPt, and Pt Nanocrystals: Systematical Investigation on the Morphological and LSPR Properties of Mono -, Bi-, Tri-, and Quad-Metallic Nanoparticles journal October 2019
Spontaneous formation of nanoparticle stripe patterns through dewetting journal November 2005
Wafer‐scale vertical van der Waals heterostructures journal December 2020
Enhanced Trion Emission and Carrier Dynamics in Monolayer WS 2 Coupled with Plasmonic Nanocavity journal October 2020
Dark-current reduction accompanied photocurrent enhancement in p-type MnO quantum-dot decorated n-type 2D-MoS 2 -based photodetector journal March 2020
Engineering precision nanoparticles for drug delivery journal December 2020
High-performance flexible and broadband photodetectors based on PbS quantum dots/ZnO nanoparticles heterostructure journal June 2018
Silver–Gold Bimetallic Alloy versus Core–Shell Nanoparticles: Implications for Plasmonic Enhancement and Photothermal Applications journal May 2020
Tunable localized surface plasmon resonance by self-assembly of trimetallic and bimetallic alloy nanoparticles via Ag sublimation from Ag/Au/Pt tri-layers journal February 2020
Fabrication of hybrid Pd@Ag core-shell and fully alloyed bi-metallic AgPd NPs and SERS enhancement of Rhodamine 6G by a unique mixture approach with graphene quantum dots journal May 2021
Preparation of alloyed and “core-shell” Au/Ag bimetallic nanostructures on glass substrate by solid state dewetting journal July 2020
ZnO/CuCrO 2 Core-Shell Nanowire Heterostructures for Self-Powered UV Photodetectors with Fast Response journal September 2018
Using intracellular plasmonics to characterize nanomorphology in human cells journal December 2020
Dynamic Optical Properties of Metal Hydrides journal October 2018
A first principle Comparative study of electronic and optical properties of 1H – MoS2 and 2H – MoS2 journal August 2012
Self-powered photodetector with improved and broadband multispectral photoresponsivity based on ZnO-ZnS composite journal April 2021
Ferroelectric Localized Field-Enhanced ZnO Nanosheet Ultraviolet Photodetector with High Sensitivity and Low Dark Current journal May 2018
Multilayer MgZnO/ZnO thin films for UV photodetectors journal October 2018
Metal nanoparticles in ionic liquid‐cosolvent biphasic systems as active catalysts for acetylene hydrochlorination journal February 2018
Significantly improved photo carrier injection by the MoS2/ZnO/HNP hybrid UV photodetector architecture journal February 2022
Self-powered, visible-light photodetector based on thermally reduced graphene oxide–ZnO (rGO–ZnO) hybrid nanostructure journal January 2012
Synthesis of high-entropy alloy nanoparticles on supports by the fast moving bed pyrolysis journal April 2020
Tailoring exciton dynamics of monolayer transition metal dichalcogenides by interfacial electron-phonon coupling journal September 2019
High-performance UV‐Vis-NIR photodetectors based on plasmonic effect in Au nanoparticles/ZnO nanofibers journal July 2019
Band Alignment Engineering in Two‐Dimensional Transition Metal Dichalcogenide‐Based Heterostructures for Photodetectors journal December 2020
Templated dewetting: designing entirely self-organized platforms for photocatalysis journal January 2016
Plasmon-induced hot carrier science and technology journal January 2015
Palladium Diselenide Long-Wavelength Infrared Photodetector with High Sensitivity and Stability journal February 2019
A 1300 mm 2 Ultrahigh-Performance Digital Imaging Assembly using High-Quality Perovskite Single Crystals journal May 2018
Ultrasensitive MoS2 photodetector by serial nano-bridge multi-heterojunction journal October 2019
2D In 2 S 3 Nanoflake Coupled with Graphene toward High‐Sensitivity and Fast‐Response Bulk‐Silicon Schottky Photodetector journal October 2019
Self-Assembled Al Nanostructure/ZnO Quantum Dot Heterostructures for High Responsivity and Fast UV Photodetector journal May 2020
CoP 2 Nanoparticles Deposited on Nanometer-Thick Pt-Coated Fluorine-Doped Tin Oxide Substrates as Electrocatalysts for Simultaneous Hydrogen Evolution and Oxygen Evolution journal June 2020
Improved Photoresponse of UV Photodetectors by the Incorporation of Plasmonic Nanoparticles on GaN Through the Resonant Coupling of Localized Surface Plasmon Resonance journal April 2020
Enhanced sensitivity and response speed of graphene oxide/ZnO nanorods photodetector fabricated by introducing graphene oxide in seed layer journal July 2017
Effect of the annealing atmosphere on the layer interdiffusion in Pd/Ti/Pd multilayer stacks deposited on pure Ti and Ti-alloy substrates
  • Magogodi, Steven; Mtshali, Christopher; Halindintwali, Sylvain
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 461 https://doi.org/10.1016/j.nimb.2019.09.018
journal December 2019
MoS2-coated ZnO nanocomposite as an active heterostructure photocatalyst for hydrogen evolution journal August 2017
Solution-processed ZnO:graphene quantum dot/Poly-TPD heterojunction for high-performance UV photodetectors journal February 2021
Hybridization of 2D MoS 2 Nanoplatelets and PtAu Hybrid Nanoparticles for the SERS Enhancement of Methylene Blue journal October 2021
Highly Controllable Surface Plasmon Resonance Property by Heights of Ordered Nanoparticle Arrays Fabricated via a Nonlithographic Route journal March 2015
ZnO/GaN heterojunction based self-powered photodetectors: Influence of interfacial states on UV sensing journal June 2019
Ligand‐Programmed Consecutive Symmetry Break(s) in Nanoparticle Based Materials Showing Emergent Phenomena: Transitioning from Sixfold to Threefold Symmetry in Anisotropic ZnO Colloids journal December 2020
Gold nanoparticles on the surface of soda-lime glass: morphological, linear and nonlinear optical characterization journal January 2012
ZnO@graphene QDs with tuned surface functionalities formed on eco-friendly keratin nanofiber textile for transparent and flexible ultraviolet photodetectors journal February 2020
Self-powered, broadband perovskite photodetector based on ZnO microspheres as scaffold layer journal August 2018
Tailoring of Silver Nanocubes with Optimized Localized Surface Plasmon in a Gap Mode for a Flexible MoS 2 Photodetector journal March 2019
Au/TiO 2 nanorod-based Schottky-type UV photodetectors journal October 2012
Self‐Polarized BaTiO 3 for Greatly Enhanced Performance of ZnO UV Photodetector by Regulating the Distribution of Electron Concentration journal November 2019
Single-Step Selective Laser Writing of Flexible Photodetectors for Wearable Optoelectronics journal June 2018
Aluminum Plasmonics Enriched Ultraviolet GaN Photodetector with Ultrahigh Responsivity, Detectivity, and Broad Bandwidth journal November 2020
Ammonia gas sensors: A comprehensive review journal November 2019