Plasmonic Nanocrystal Arrays on Photonic Crystals with Tailored Optical Resonances

Juan Wang; Hai Le-The; Theodosios Karamanos; Radius N.S. Suryadharma; Albert van den Berg; Pepijn W.H. Pinkse; Carsten Rockstuhl; Lingling Shui; Jan C.T. Eijkel; Loes I. Segerink

doi:10.1021/acsami.0c05596

Plasmonic Nanocrystal Arrays on Photonic Crystals with Tailored Optical Resonances

Juan Wang^*
, Hai Le-The
, Theodosios Karamanos
, Radius N.S. Suryadharma
, Albert van den Berg
, Pepijn W.H. Pinkse
, Carsten Rockstuhl
, Lingling Shui^*
, Jan C.T. Eijkel
, Loes I. Segerink

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

31 Citations (Scopus)

124 Downloads (Pure)

Abstract

Hierarchical plasmonic-photonic microspheres (PPMs) with high controllability in their structures and optical properties have been explored toward surface-enhanced Raman spectroscopy. The PPMs consist of gold nanocrystal (AuNC) arrays (3rd-Tier) anchored on a hexagonal nanopattern (2nd-Tier) assembled from silica nanoparticles (SiO₂NPs) where the uniform microsphere backbone is termed the 1st-Tier. The PPMs sustain both photonic stop band (PSB) properties, resulting from periodic SiO₂NP arrangements of the 2nd-Tier, and a surface plasmon resonance (SPR), resulting from AuNC arrays of the 3rd-Tier. Thanks to the synergistic effects of the photonic crystal (PC) structure and the AuNC array, the electromagnetic (EM) field in such a multiscale composite structure can tremendously be enhanced at certain wavelengths. These effects are demonstrated by experimentally evaluating the Raman enhancement of benzenethiol (BT) as a probe molecule and are confirmed via numerical simulations. We achieve a maximum SERS enhancement factor of up to â108 when the resonances are tailored to coincide with the excitation wavelength by suitable structural modifications.

Original language	English
Pages (from-to)	37657-37669
Number of pages	13
Journal	ACS Applied Materials and Interfaces
Volume	12
Issue number	33
DOIs	https://doi.org/10.1021/acsami.0c05596
Publication status	Published - Aug 2020

Keywords

Localized surface plasmon resonance
Photonic stop band
Plasmonic−photonic microsphere
Slow light effect
Surface-enhanced Raman spectroscopy

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Wang2020plasmonicFinal published version, 9.8 MBLicence: CC BY-NC-ND

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@article{f644411ac0b141daadc75aacca94b7d1,

title = "Plasmonic Nanocrystal Arrays on Photonic Crystals with Tailored Optical Resonances",

abstract = "Hierarchical plasmonic-photonic microspheres (PPMs) with high controllability in their structures and optical properties have been explored toward surface-enhanced Raman spectroscopy. The PPMs consist of gold nanocrystal (AuNC) arrays (3rd-Tier) anchored on a hexagonal nanopattern (2nd-Tier) assembled from silica nanoparticles (SiO2NPs) where the uniform microsphere backbone is termed the 1st-Tier. The PPMs sustain both photonic stop band (PSB) properties, resulting from periodic SiO2NP arrangements of the 2nd-Tier, and a surface plasmon resonance (SPR), resulting from AuNC arrays of the 3rd-Tier. Thanks to the synergistic effects of the photonic crystal (PC) structure and the AuNC array, the electromagnetic (EM) field in such a multiscale composite structure can tremendously be enhanced at certain wavelengths. These effects are demonstrated by experimentally evaluating the Raman enhancement of benzenethiol (BT) as a probe molecule and are confirmed via numerical simulations. We achieve a maximum SERS enhancement factor of up to {\^a}108 when the resonances are tailored to coincide with the excitation wavelength by suitable structural modifications.",

keywords = "Localized surface plasmon resonance, Photonic stop band, Plasmonic−photonic microsphere, Slow light effect, Surface-enhanced Raman spectroscopy",

author = "Juan Wang and Hai Le-The and Theodosios Karamanos and Suryadharma, \{Radius N.S.\} and \{van den Berg\}, Albert and Pinkse, \{Pepijn W.H.\} and Carsten Rockstuhl and Lingling Shui and Eijkel, \{Jan C.T.\} and Segerink, \{Loes I.\}",

year = "2020",

month = aug,

doi = "10.1021/acsami.0c05596",

language = "English",

volume = "12",

pages = "37657--37669",

journal = "ACS Applied Materials and Interfaces",

issn = "1944-8244",

publisher = "American Chemical Society",

number = "33",

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TY - JOUR

T1 - Plasmonic Nanocrystal Arrays on Photonic Crystals with Tailored Optical Resonances

AU - Wang, Juan

AU - Le-The, Hai

AU - Karamanos, Theodosios

AU - Suryadharma, Radius N.S.

AU - van den Berg, Albert

AU - Pinkse, Pepijn W.H.

AU - Rockstuhl, Carsten

AU - Shui, Lingling

AU - Eijkel, Jan C.T.

AU - Segerink, Loes I.

PY - 2020/8

Y1 - 2020/8

N2 - Hierarchical plasmonic-photonic microspheres (PPMs) with high controllability in their structures and optical properties have been explored toward surface-enhanced Raman spectroscopy. The PPMs consist of gold nanocrystal (AuNC) arrays (3rd-Tier) anchored on a hexagonal nanopattern (2nd-Tier) assembled from silica nanoparticles (SiO2NPs) where the uniform microsphere backbone is termed the 1st-Tier. The PPMs sustain both photonic stop band (PSB) properties, resulting from periodic SiO2NP arrangements of the 2nd-Tier, and a surface plasmon resonance (SPR), resulting from AuNC arrays of the 3rd-Tier. Thanks to the synergistic effects of the photonic crystal (PC) structure and the AuNC array, the electromagnetic (EM) field in such a multiscale composite structure can tremendously be enhanced at certain wavelengths. These effects are demonstrated by experimentally evaluating the Raman enhancement of benzenethiol (BT) as a probe molecule and are confirmed via numerical simulations. We achieve a maximum SERS enhancement factor of up to â108 when the resonances are tailored to coincide with the excitation wavelength by suitable structural modifications.

AB - Hierarchical plasmonic-photonic microspheres (PPMs) with high controllability in their structures and optical properties have been explored toward surface-enhanced Raman spectroscopy. The PPMs consist of gold nanocrystal (AuNC) arrays (3rd-Tier) anchored on a hexagonal nanopattern (2nd-Tier) assembled from silica nanoparticles (SiO2NPs) where the uniform microsphere backbone is termed the 1st-Tier. The PPMs sustain both photonic stop band (PSB) properties, resulting from periodic SiO2NP arrangements of the 2nd-Tier, and a surface plasmon resonance (SPR), resulting from AuNC arrays of the 3rd-Tier. Thanks to the synergistic effects of the photonic crystal (PC) structure and the AuNC array, the electromagnetic (EM) field in such a multiscale composite structure can tremendously be enhanced at certain wavelengths. These effects are demonstrated by experimentally evaluating the Raman enhancement of benzenethiol (BT) as a probe molecule and are confirmed via numerical simulations. We achieve a maximum SERS enhancement factor of up to â108 when the resonances are tailored to coincide with the excitation wavelength by suitable structural modifications.

KW - Localized surface plasmon resonance

KW - Photonic stop band

KW - Plasmonic−photonic microsphere

KW - Slow light effect

KW - Surface-enhanced Raman spectroscopy

UR - https://www.scopus.com/pages/publications/85089714600

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DO - 10.1021/acsami.0c05596

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AN - SCOPUS:85089714600

SN - 1944-8244

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JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 33

ER -

Plasmonic Nanocrystal Arrays on Photonic Crystals with Tailored Optical Resonances

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