Insights into the Machine Learning Predictions of the Optical Response of Plasmon@Semiconductor Core-Shell Nanocylinders

The application domain of deep learning (DL) has been extended into the realm of nanomaterials, photochemistry, and optoelectronics research. Here, we used the combination of a computer vision technique, namely convolutional neural network (CNN), with multilayer perceptron (MLP) to obtain the far-fi...

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Main Authors: Ehsan Vahidzadeh, Karthik Shankar
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Photochem
Subjects:
Online Access:https://www.mdpi.com/2673-7256/3/1/10
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author Ehsan Vahidzadeh
Karthik Shankar
author_facet Ehsan Vahidzadeh
Karthik Shankar
author_sort Ehsan Vahidzadeh
collection DOAJ
description The application domain of deep learning (DL) has been extended into the realm of nanomaterials, photochemistry, and optoelectronics research. Here, we used the combination of a computer vision technique, namely convolutional neural network (CNN), with multilayer perceptron (MLP) to obtain the far-field optical response at normal incidence (along cylinder axis) of concentric cylindrical plasmonic metastructures such as nanorods and nanotubes. Nanotubes of Si, Ge, and TiO<sub>2</sub> coated on either their inner wall or both their inner and outer walls with a plasmonic noble metal (Au or Ag) were thus modeled. A combination of a CNN and MLP was designed to accept the cross-sectional images of cylindrical plasmonic core-shell nanomaterials as input and rapidly generate their optical response. In addition, we addressed an issue related to DL methods, namely explainability. We probed deeper into these networks’ architecture to explain how the optimized network could predict the final results. Our results suggest that the DL network learns the underlying physics governing the optical response of plasmonic core-shell nanocylinders, which in turn builds trust in the use of DL methods in materials science and optoelectronics.
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spelling doaj.art-3cd2719264fc4129b2e8183ce00c5b782023-11-17T13:18:02ZengMDPI AGPhotochem2673-72562023-03-013115517010.3390/photochem3010010Insights into the Machine Learning Predictions of the Optical Response of Plasmon@Semiconductor Core-Shell NanocylindersEhsan Vahidzadeh0Karthik Shankar1Department of Electrical and Computer Engineering, University of Alberta, 9211-116 St., Edmonton, AB T6G 1H9, CanadaDepartment of Electrical and Computer Engineering, University of Alberta, 9211-116 St., Edmonton, AB T6G 1H9, CanadaThe application domain of deep learning (DL) has been extended into the realm of nanomaterials, photochemistry, and optoelectronics research. Here, we used the combination of a computer vision technique, namely convolutional neural network (CNN), with multilayer perceptron (MLP) to obtain the far-field optical response at normal incidence (along cylinder axis) of concentric cylindrical plasmonic metastructures such as nanorods and nanotubes. Nanotubes of Si, Ge, and TiO<sub>2</sub> coated on either their inner wall or both their inner and outer walls with a plasmonic noble metal (Au or Ag) were thus modeled. A combination of a CNN and MLP was designed to accept the cross-sectional images of cylindrical plasmonic core-shell nanomaterials as input and rapidly generate their optical response. In addition, we addressed an issue related to DL methods, namely explainability. We probed deeper into these networks’ architecture to explain how the optimized network could predict the final results. Our results suggest that the DL network learns the underlying physics governing the optical response of plasmonic core-shell nanocylinders, which in turn builds trust in the use of DL methods in materials science and optoelectronics.https://www.mdpi.com/2673-7256/3/1/10energysensingphotocatalysisin-silico designclassificationoptimization
spellingShingle Ehsan Vahidzadeh
Karthik Shankar
Insights into the Machine Learning Predictions of the Optical Response of Plasmon@Semiconductor Core-Shell Nanocylinders
Photochem
energy
sensing
photocatalysis
in-silico design
classification
optimization
title Insights into the Machine Learning Predictions of the Optical Response of Plasmon@Semiconductor Core-Shell Nanocylinders
title_full Insights into the Machine Learning Predictions of the Optical Response of Plasmon@Semiconductor Core-Shell Nanocylinders
title_fullStr Insights into the Machine Learning Predictions of the Optical Response of Plasmon@Semiconductor Core-Shell Nanocylinders
title_full_unstemmed Insights into the Machine Learning Predictions of the Optical Response of Plasmon@Semiconductor Core-Shell Nanocylinders
title_short Insights into the Machine Learning Predictions of the Optical Response of Plasmon@Semiconductor Core-Shell Nanocylinders
title_sort insights into the machine learning predictions of the optical response of plasmon semiconductor core shell nanocylinders
topic energy
sensing
photocatalysis
in-silico design
classification
optimization
url https://www.mdpi.com/2673-7256/3/1/10
work_keys_str_mv AT ehsanvahidzadeh insightsintothemachinelearningpredictionsoftheopticalresponseofplasmonsemiconductorcoreshellnanocylinders
AT karthikshankar insightsintothemachinelearningpredictionsoftheopticalresponseofplasmonsemiconductorcoreshellnanocylinders