Wafer-Scale Polymer-Based Transparent Nanocorals with Excellent Nanoplasmonic Photothermal Stability for High-Power and Superfast SERS Imaging

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Abstract

Polymer-based surface-enhanced Raman spectroscopy (SERS) substrates offer distinctive advantages such as low-cost and high optical transparency which allows direct detection of trace chemicals on target surfaces and easy microfluidic integration. However, incident-laser-induced localized surface plasmon resonances can generate heat that deform the polymer and significantly reduce the intensities of recorded SERS signals. Herein, a novel wafer-scale polymer-based transparent nanocoral (WTNC) SERS substrate with 3D electromagnetic "hotspots" is presented. Its fabrication is simple and lithography-free. The novel SERS substrate demonstrates excellent nanoplasmonic heat resistance, high SERS sensitivity, and unmatched SERS signal uniformity with a relative standard deviation of approximate to 6% across 80 mm. Excellent photothermal stability is achieved by highly crosslinking SU-8, a negative epoxy photoresist, raising its initial degradation temperature to approximate to 230 degrees C, much higher than the glass transition temperature of state-of-the-art thermalplasts used in SERS substrates, including polyethylene terephthalate and poly(methyl methacrylate). The WTNC substrate can withstand very high laser irradiance of up to 300 kW cm(-2), enabling superfast SERS imaging of analytes in extremely small quantities. A high resolution SERS image containing 10 201 spectra of approximate to 44 amol trans-1,2-bis(4-pyridyl)ethylene is obtainable in
Original languageEnglish
Article number1901413
JournalAdvanced Optical Materials
Volume7
Issue number23
Number of pages11
ISSN2195-1071
DOIs
Publication statusPublished - 2019

Cite this

@article{d906bcf1aa23484e8d0573e11c0f5d64,
title = "Wafer-Scale Polymer-Based Transparent Nanocorals with Excellent Nanoplasmonic Photothermal Stability for High-Power and Superfast SERS Imaging",
abstract = "Polymer-based surface-enhanced Raman spectroscopy (SERS) substrates offer distinctive advantages such as low-cost and high optical transparency which allows direct detection of trace chemicals on target surfaces and easy microfluidic integration. However, incident-laser-induced localized surface plasmon resonances can generate heat that deform the polymer and significantly reduce the intensities of recorded SERS signals. Herein, a novel wafer-scale polymer-based transparent nanocoral (WTNC) SERS substrate with 3D electromagnetic {"}hotspots{"} is presented. Its fabrication is simple and lithography-free. The novel SERS substrate demonstrates excellent nanoplasmonic heat resistance, high SERS sensitivity, and unmatched SERS signal uniformity with a relative standard deviation of approximate to 6{\%} across 80 mm. Excellent photothermal stability is achieved by highly crosslinking SU-8, a negative epoxy photoresist, raising its initial degradation temperature to approximate to 230 degrees C, much higher than the glass transition temperature of state-of-the-art thermalplasts used in SERS substrates, including polyethylene terephthalate and poly(methyl methacrylate). The WTNC substrate can withstand very high laser irradiance of up to 300 kW cm(-2), enabling superfast SERS imaging of analytes in extremely small quantities. A high resolution SERS image containing 10 201 spectra of approximate to 44 amol trans-1,2-bis(4-pyridyl)ethylene is obtainable in",
author = "Kaiyu Wu and Nguyen, {Long Quang} and Tomas Rindzevicius and Keller, {Stephan Sylvest} and Anja Boisen",
year = "2019",
doi = "10.1002/adom.201901413",
language = "English",
volume = "7",
journal = "Advanced Optical Materials",
issn = "2195-1071",
publisher = "Wiley - V C H Verlag GmbH & Co. KGaA",
number = "23",

}

TY - JOUR

T1 - Wafer-Scale Polymer-Based Transparent Nanocorals with Excellent Nanoplasmonic Photothermal Stability for High-Power and Superfast SERS Imaging

AU - Wu, Kaiyu

AU - Nguyen, Long Quang

AU - Rindzevicius, Tomas

AU - Keller, Stephan Sylvest

AU - Boisen, Anja

PY - 2019

Y1 - 2019

N2 - Polymer-based surface-enhanced Raman spectroscopy (SERS) substrates offer distinctive advantages such as low-cost and high optical transparency which allows direct detection of trace chemicals on target surfaces and easy microfluidic integration. However, incident-laser-induced localized surface plasmon resonances can generate heat that deform the polymer and significantly reduce the intensities of recorded SERS signals. Herein, a novel wafer-scale polymer-based transparent nanocoral (WTNC) SERS substrate with 3D electromagnetic "hotspots" is presented. Its fabrication is simple and lithography-free. The novel SERS substrate demonstrates excellent nanoplasmonic heat resistance, high SERS sensitivity, and unmatched SERS signal uniformity with a relative standard deviation of approximate to 6% across 80 mm. Excellent photothermal stability is achieved by highly crosslinking SU-8, a negative epoxy photoresist, raising its initial degradation temperature to approximate to 230 degrees C, much higher than the glass transition temperature of state-of-the-art thermalplasts used in SERS substrates, including polyethylene terephthalate and poly(methyl methacrylate). The WTNC substrate can withstand very high laser irradiance of up to 300 kW cm(-2), enabling superfast SERS imaging of analytes in extremely small quantities. A high resolution SERS image containing 10 201 spectra of approximate to 44 amol trans-1,2-bis(4-pyridyl)ethylene is obtainable in

AB - Polymer-based surface-enhanced Raman spectroscopy (SERS) substrates offer distinctive advantages such as low-cost and high optical transparency which allows direct detection of trace chemicals on target surfaces and easy microfluidic integration. However, incident-laser-induced localized surface plasmon resonances can generate heat that deform the polymer and significantly reduce the intensities of recorded SERS signals. Herein, a novel wafer-scale polymer-based transparent nanocoral (WTNC) SERS substrate with 3D electromagnetic "hotspots" is presented. Its fabrication is simple and lithography-free. The novel SERS substrate demonstrates excellent nanoplasmonic heat resistance, high SERS sensitivity, and unmatched SERS signal uniformity with a relative standard deviation of approximate to 6% across 80 mm. Excellent photothermal stability is achieved by highly crosslinking SU-8, a negative epoxy photoresist, raising its initial degradation temperature to approximate to 230 degrees C, much higher than the glass transition temperature of state-of-the-art thermalplasts used in SERS substrates, including polyethylene terephthalate and poly(methyl methacrylate). The WTNC substrate can withstand very high laser irradiance of up to 300 kW cm(-2), enabling superfast SERS imaging of analytes in extremely small quantities. A high resolution SERS image containing 10 201 spectra of approximate to 44 amol trans-1,2-bis(4-pyridyl)ethylene is obtainable in

U2 - 10.1002/adom.201901413

DO - 10.1002/adom.201901413

M3 - Journal article

VL - 7

JO - Advanced Optical Materials

JF - Advanced Optical Materials

SN - 2195-1071

IS - 23

M1 - 1901413

ER -