LSTM-based framework for predicting point defect percentage in semiconductor materials using simulated XRD patterns

Abstract In this paper, we present a machine learning-based approach that leverages Long Short-Term Memory (LSTM) networks combined with a sliding window technique for feature extraction, aimed at accurately predicting point defect percentages in semiconductor materials based on simulated X-ray Diff...

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Main Authors: Mehran Motamedi, Reza Shidpour, Mehdi Ezoji
Format: Article
Language:English
Published: Nature Portfolio 2024-10-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-75783-6
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author Mehran Motamedi
Reza Shidpour
Mehdi Ezoji
author_facet Mehran Motamedi
Reza Shidpour
Mehdi Ezoji
author_sort Mehran Motamedi
collection DOAJ
description Abstract In this paper, we present a machine learning-based approach that leverages Long Short-Term Memory (LSTM) networks combined with a sliding window technique for feature extraction, aimed at accurately predicting point defect percentages in semiconductor materials based on simulated X-ray Diffraction (XRD) data. The model was initially trained on silicon-simulated XRD data with defect percentages ranging from 1 to 5%, enabling it to predict defect percentages from 0 to 10% in silicon and other semiconductor materials, including AlAs, CdS, GaAs, Ge, and ZnS. Through extensive experimentation, we explored different sequence lengths and LSTM units, identifying the optimal configuration as a sequence length of 3501 and 4500 units, which yielded the best results. The model’s mean absolute error at 4500 units was 0.021, the lowest among the LSTM configurations tested. The sliding window technique plays a crucial role in capturing temporal dependencies within the XRD data, allowing the model to generalize to other semiconductor materials. Additionally, we observed that increasing defect percentages consistently led to a rise in background intensity. We further examined the relationship between crystal structure and defect precentage predictions, uncovering consistent trends for materials with Diamond Cubic and Zinc Blende structures. This LSTM-based method offers a novel approach to predicting defect percentages using simulated XRD patterns of materials.
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spelling doaj-art-9bbe2b59f56b4bf4b743b353ee3613522025-02-02T12:25:11ZengNature PortfolioScientific Reports2045-23222024-10-0114111110.1038/s41598-024-75783-6LSTM-based framework for predicting point defect percentage in semiconductor materials using simulated XRD patternsMehran Motamedi0Reza Shidpour1Mehdi Ezoji2Department of Materials Engineering, Babol Noshirvani University of TechnologyDepartment of Materials Engineering, Babol Noshirvani University of TechnologyFaculty of Electrical and Computer Engineering, Babol Noshirvani University of TechnologyAbstract In this paper, we present a machine learning-based approach that leverages Long Short-Term Memory (LSTM) networks combined with a sliding window technique for feature extraction, aimed at accurately predicting point defect percentages in semiconductor materials based on simulated X-ray Diffraction (XRD) data. The model was initially trained on silicon-simulated XRD data with defect percentages ranging from 1 to 5%, enabling it to predict defect percentages from 0 to 10% in silicon and other semiconductor materials, including AlAs, CdS, GaAs, Ge, and ZnS. Through extensive experimentation, we explored different sequence lengths and LSTM units, identifying the optimal configuration as a sequence length of 3501 and 4500 units, which yielded the best results. The model’s mean absolute error at 4500 units was 0.021, the lowest among the LSTM configurations tested. The sliding window technique plays a crucial role in capturing temporal dependencies within the XRD data, allowing the model to generalize to other semiconductor materials. Additionally, we observed that increasing defect percentages consistently led to a rise in background intensity. We further examined the relationship between crystal structure and defect precentage predictions, uncovering consistent trends for materials with Diamond Cubic and Zinc Blende structures. This LSTM-based method offers a novel approach to predicting defect percentages using simulated XRD patterns of materials.https://doi.org/10.1038/s41598-024-75783-6Long short-term memorySliding window techniqueSequence lengthNumber of unitsNuance effect
spellingShingle Mehran Motamedi
Reza Shidpour
Mehdi Ezoji
LSTM-based framework for predicting point defect percentage in semiconductor materials using simulated XRD patterns
Scientific Reports
Long short-term memory
Sliding window technique
Sequence length
Number of units
Nuance effect
title LSTM-based framework for predicting point defect percentage in semiconductor materials using simulated XRD patterns
title_full LSTM-based framework for predicting point defect percentage in semiconductor materials using simulated XRD patterns
title_fullStr LSTM-based framework for predicting point defect percentage in semiconductor materials using simulated XRD patterns
title_full_unstemmed LSTM-based framework for predicting point defect percentage in semiconductor materials using simulated XRD patterns
title_short LSTM-based framework for predicting point defect percentage in semiconductor materials using simulated XRD patterns
title_sort lstm based framework for predicting point defect percentage in semiconductor materials using simulated xrd patterns
topic Long short-term memory
Sliding window technique
Sequence length
Number of units
Nuance effect
url https://doi.org/10.1038/s41598-024-75783-6
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AT rezashidpour lstmbasedframeworkforpredictingpointdefectpercentageinsemiconductormaterialsusingsimulatedxrdpatterns
AT mehdiezoji lstmbasedframeworkforpredictingpointdefectpercentageinsemiconductormaterialsusingsimulatedxrdpatterns