TY - JOUR
T1 - Multi-Functional Applications of H-Glass Embedded with Stable Plasmonic Gold Nanoislands
AU - Gangareddy, Jagannath
AU - Rudra, Pratyasha
AU - Chirumamilla, Manohar
AU - Ganisetti, Sudheer
AU - Kasimuthumaniyan, Subramanian
AU - Sahoo, Sourav
AU - Jayanthi, K.
AU - Rathod, Jagannath
AU - Soma, Venugopal Rao
AU - Das, Subrata
AU - Gosvami, Nitya Nand
AU - Krishnan, N. M.Anoop
AU - Pedersen, Kjeld
AU - Mondal, Swastik
AU - Ghosh, Srabanti
AU - Allu, Amarnath R.
N1 - Funding Information:
This work was established under the framework of the project supported by the Science and Engineering Research Board (SERB), DST, Govt. of India, through the Early Career Research Award (ECR/2018/000292). A.R.A. would like thank DST–SERB (ECR/2018/000292) for financial support. S.G. thanks SERB for the POWER Grant (SPG/2020/000720). The author, J.G. acknowledges CSIR, New Delhi for providing CSIR‐RA fellowship (31/015(0158)/2020‒EMR‒I). P.R. and S.M. would like to acknowledge Mr. Jalaluddin Mondal for his technical support while performing gas sensing experiments. P.R. thanks DST for sanctioning INSPIRE fellowship (DST/INSPIRE Fellowship/2018/IF180761). S.M. acknowledges financial support from SERB Core Research Grant, Government of India (Grant number: CRG/2019/004588). V.R.S. thanks DRDO, India, for financial support through ACRHEM [ERIP/ER/1501138/M/01/319/D(R&D)]. V.R.S. also thanks the University of Hyderabad for project funding under the Institute of Eminence scheme (#UOH/IOE/RC1/RC1‐20‐016).
Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2024/1/4
Y1 - 2024/1/4
N2 - Metal nanoparticles (MNPs) are synthesized using various techniques on diverse substrates that significantly impact their properties. However, among the substrate materials investigated, the major challenge is the stability of MNPs due to their poor adhesion to the substrate. Herein, it is demonstrated how a newly developed H-glass can concurrently stabilize plasmonic gold nanoislands (GNIs) and offer multifunctional applications. The GNIs on the H-glass are synthesized using a simple yet, robust thermal dewetting process. The H-glass embedded with GNIs demonstrates versatility in its applications, such as i) acting as a room temperature chemiresistive gas sensor (70% response for NO2 gas); ii) serving as substrates for surface-enhanced Raman spectroscopy for the identifications of Nile blue (dye) and picric acid (explosive) analytes down to nanomolar concentrations with enhancement factors of 4.8 × 106 and 6.1 × 105, respectively; and iii) functioning as a nonlinear optical saturable absorber with a saturation intensity of 18.36 × 1015 W m−2 at 600 nm, and the performance characteristics are on par with those of materials reported in the existing literature. This work establishes a facile strategy to develop advanced materials by depositing metal nanoislands on glass for various functional applications.
AB - Metal nanoparticles (MNPs) are synthesized using various techniques on diverse substrates that significantly impact their properties. However, among the substrate materials investigated, the major challenge is the stability of MNPs due to their poor adhesion to the substrate. Herein, it is demonstrated how a newly developed H-glass can concurrently stabilize plasmonic gold nanoislands (GNIs) and offer multifunctional applications. The GNIs on the H-glass are synthesized using a simple yet, robust thermal dewetting process. The H-glass embedded with GNIs demonstrates versatility in its applications, such as i) acting as a room temperature chemiresistive gas sensor (70% response for NO2 gas); ii) serving as substrates for surface-enhanced Raman spectroscopy for the identifications of Nile blue (dye) and picric acid (explosive) analytes down to nanomolar concentrations with enhancement factors of 4.8 × 106 and 6.1 × 105, respectively; and iii) functioning as a nonlinear optical saturable absorber with a saturation intensity of 18.36 × 1015 W m−2 at 600 nm, and the performance characteristics are on par with those of materials reported in the existing literature. This work establishes a facile strategy to develop advanced materials by depositing metal nanoislands on glass for various functional applications.
KW - glasses
KW - gold nanoislands
KW - NO gas sensors
KW - saturable absorber
KW - stability of gold nano-islands
KW - surface-enhanced Raman spectroscopy substrate
UR - http://www.scopus.com/inward/record.url?scp=85169805832&partnerID=8YFLogxK
U2 - 10.1002/smll.202303688
DO - 10.1002/smll.202303688
M3 - Journal article
AN - SCOPUS:85169805832
SN - 1613-6810
VL - 20
JO - Small
JF - Small
IS - 1
M1 - 2303688
ER -