Tailoring plasmonic properties of gold nanohole arrays for surface-enhanced Raman scattering
Literature Information
Peng Zheng, Savan Suri, Nianqiang Wu
The wide plasmonic tuning range of nanotriangle and nanohole array patterns fabricated by nanosphere lithography makes them promising in surface-enhanced Raman scattering (SERS) sensors. Unfortunately, it is challenging to optimize these patterns for SERS sensing because their optical response is a complex mixture of localized surface plasmon resonance (SPR) and propagating surface plasmon polariton (SPP). In this paper, transmission and reflection measurements are combined with finite difference time domain simulations to identify and separate each plasmonic mode, discerning which resonance leads to the electromagnetic field enhancement. The SERS enhancement is found to be dominated by the absorption, which is shifted from the transmission and reflection dips usually used as tuning points, and by the ‘gap’ defects formed within the pattern. These effects have different spectral and geometric dependences, forming two optimization curves which can be used to predict the best performance for a given excitation wavelength. The developed model is verified with experimental SERS measurements for several nanohole sizes and periodicities, and then used to give optimal fabrication parameters for a range of measurement conditions. The results will promote the application of two-dimensional plasmonic nanoarrays in SERS sensors.
Related Literature
Steric hindrance classified: treatment of isothiocyanatoallene with secondary amines bearing bulky substituents to generate 2-aminothiazoles‡
Klaus Banert, Jennifer Seifert
DOI: 10.1039/C9QO00312F
Officinalins A and B, a pair of C23 terpenoid epimers with a tetracyclic 6/7/5/5 system from Salvia officinalis
Ling-Nan Li, Xiao-Qin Liu, Dong-Rong Zhu, Chen Chen, Yao-Lan Lin, Wen-Li Wang, Li Zhu, Jian-Guang Luo, Ling-Yi Kong
DOI: 10.1039/C9QO00861F
Highly convergent modular access to poly-carbon substituted cyclopropanes via Cu(i)-catalyzed three-component cyclopropene carboallylation
Hexin Li, Mengru Zhang, Haroon Mehfooz, Dongxia Zhu, Jinbo Zhao
DOI: 10.1039/C9QO00902G
Reagent-controlled regiodivergence in the [3,3]-sigmatropic rearrangement of N-(acyloxy)enamides
Norihiko Takeda, Narumi Arisawa, Misaki Miyamoto, Yukiko Kobori, Tetsuro Shinada, Masafumi Ueda
DOI: 10.1039/C9QO01109A
Synthesis of photolabile protecting group (PPG) protected uronic acid building blocks: applications in carbohydrate synthesis with the assistance of a continuous flow photoreactor
Varsha Tiwari, Adesh Kumar Singh, Priyanka Chaudhary, Peter H. Seeberger, Jeyakumar Kandasamy
DOI: 10.1039/C9QO01010F
Synthesis of silacyclopent-2-en-4-ols via intramolecular [2 + 2] photocycloaddition of benzoyl(allyl)silanes
Arto Valkonen, Carlos A. M. Afonso, Nuno R. Candeias
DOI: 10.1039/C9QO01028A
A practical and effective method for the N–N bond cleavage of N-amino-heterocycles
Giacomo Mari, Gianfranco Favi, Stefania Santeusanio, Fabio Mantellini, Lucia De Crescentini
DOI: 10.1039/C9QO00895K
1,1′-Bi(2-naphthol-4,5-dicarboximide)s: blue emissive axially chiral scaffolds with aggregation-enhanced emission properties
Meng-Ting Chen, Yang Zhang, Myroslav O. Vysotsky, Joachim O. Lindner, Meng-Hua Li, Mei-Jin Lin, Frank Würthner
DOI: 10.1039/C9QO01090D
You might also like
Is 6-(3-Fluorophenyl)picolinic acid (CAS: 887982-40-3) safe?
6-(3-Fluorophenyl)picolinic acid is generally considered safe for laboratory use...
What industries use (3R)-3-Pyrrolidinol (CAS: 2799-21-5)?
(3R)-3-Pyrrolidinol is used in the pharmaceutical industry as a precursor for dr...
What precautions should be taken when handling (4R,5R)-4,5-Diethoxycarbonyl-2,2-dimethyldioxolane (CAS: 59779-75-8)?
When handling (4R,5R)-4,5-Diethoxycarbonyl-2,2-dimethyldioxolane (CAS: 59779-75-...
How is 1-(6-Chloroimidazo[1,2-b]pyridazin-3-yl)ethanone (CAS: 90734-71-7) typically synthesized?
1-(6-Chloroimidazo[1,2-b]pyridazin-3-yl)ethanone is often synthesized via a mult...
What is the market or research trend for N-Ethyl-3,4-dimethylbenzylamine (CAS: 39180-83-1)?
The market for N-Ethyl-3,4-dimethylbenzylamine (CAS: 39180-83-1) remains steady,...
What is Tert-butyl 3-(pyrrolidin-1-yl)azetidine-1-carboxylate (CAS: 1019008-21-9)?
Tert-butyl 3-(pyrrolidin-1-yl)azetidine-1-carboxylate is a chemical compound wit...
What regulatory guidelines apply to 1-Bromo-3-chloro-2,4-dimethoxybenzene (CAS: 1228956-93-1)?
1-Bromo-3-chloro-2,4-dimethoxybenzene (CAS: 1228956-93-1) falls under the classi...
Is 8-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one (CAS: 1368622-07-4) safe?
The safety of 8-Bromo-2-methyl-3,4-dihydroisoquinolin-1(2H)-one (CAS: 1368622-07...
Is Benzyl [(3S)-2,6-dioxo-3-piperidinyl]carbamate (CAS: 22785-43-9) safe?
Benzyl [(3S)-2,6-dioxo-3-piperidinyl]carbamate is generally safe when handled wi...
How should 1-{[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]sulfonyl}pyrrolidine (CAS: 928657-21-0) be stored?
1-{[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]sulfonyl}pyrrolidine s...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.











![3-[(3R,4R)-3-[(6-aminopyrimidin-4-yl)-methyl-amino]-4-methyl-1-piperidyl]-3-oxo-propanenitrile structure 3-[(3R,4R)-3-[(6-aminopyrimidin-4-yl)-methyl-amino]-4-methyl-1-piperidyl]-3-oxo-propanenitrile structure](https://static.chemtradehub.com/structs/164/1640971-60-3-83a4.webp)


![trans-2-{[(Tert-butoxy)carbonyl]amino}cyclobutane-1-carboxylic acid structure trans-2-{[(Tert-butoxy)carbonyl]amino}cyclobutane-1-carboxylic acid structure](https://static.chemtradehub.com/structs/951/951173-25-4-27cd.webp)