Interpretable Machine Learning of Two‐Photon Absorption

Abstract Molecules with strong two‐photon absorption (TPA) are important in many advanced applications such as upconverted laser and photodynamic therapy, but their design is hampered by the high cost of experimental screening and accurate quantum chemical (QC) calculations. Here a systematic study...

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Main Authors: Yuming Su, Yiheng Dai, Yifan Zeng, Caiyun Wei, Yangtao Chen, Fuchun Ge, Peikun Zheng, Da Zhou, Pavlo O. Dral, Cheng Wang
Format: Article
Language:English
Published: Wiley 2023-03-01
Series:Advanced Science
Subjects:
Online Access:https://doi.org/10.1002/advs.202204902
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author Yuming Su
Yiheng Dai
Yifan Zeng
Caiyun Wei
Yangtao Chen
Fuchun Ge
Peikun Zheng
Da Zhou
Pavlo O. Dral
Cheng Wang
author_facet Yuming Su
Yiheng Dai
Yifan Zeng
Caiyun Wei
Yangtao Chen
Fuchun Ge
Peikun Zheng
Da Zhou
Pavlo O. Dral
Cheng Wang
author_sort Yuming Su
collection DOAJ
description Abstract Molecules with strong two‐photon absorption (TPA) are important in many advanced applications such as upconverted laser and photodynamic therapy, but their design is hampered by the high cost of experimental screening and accurate quantum chemical (QC) calculations. Here a systematic study is performed by collecting an experimental TPA database with ≈900 molecules, analyzing with interpretable machine learning (ML) the key molecular features explaining TPA magnitudes, and building a fast ML model for predictions. The ML model has prediction errors of similar magnitude compared to experimental and affordable QC methods errors and has the potential for high‐throughput screening as additionally validated with the new experimental measurements. ML feature analysis is generally consistent with common beliefs which is quantified and rectified. The most important feature is conjugation length followed by features reflecting the effects of donor and acceptor substitution and coplanarity.
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spelling doaj.art-1b7d4cb83504495ba9507aee341c0a6f2023-03-15T13:19:15ZengWileyAdvanced Science2198-38442023-03-01108n/an/a10.1002/advs.202204902Interpretable Machine Learning of Two‐Photon AbsorptionYuming Su0Yiheng Dai1Yifan Zeng2Caiyun Wei3Yangtao Chen4Fuchun Ge5Peikun Zheng6Da Zhou7Pavlo O. Dral8Cheng Wang9State Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering, iChem Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Xiamen University 361005 Xiamen P. R. ChinaState Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering, iChem Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Xiamen University 361005 Xiamen P. R. ChinaState Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering, iChem Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Xiamen University 361005 Xiamen P. R. ChinaState Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering, iChem Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Xiamen University 361005 Xiamen P. R. ChinaState Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering, iChem Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Xiamen University 361005 Xiamen P. R. ChinaDepartment of Chemistry College of Chemistry and Chemical Engineering iChem Xiamen University Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry Xiamen University 361005 Xiamen P. R. ChinaDepartment of Chemistry College of Chemistry and Chemical Engineering iChem Xiamen University Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry Xiamen University 361005 Xiamen P. R. ChinaSchool of Mathematical Sciences and Fujian Provincial Key Laboratory of Mathematical Modeling and High‐Performance Scientific Computation Xiamen University Xiamen 361005 P. R. ChinaDepartment of Chemistry College of Chemistry and Chemical Engineering iChem Xiamen University Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry Xiamen University 361005 Xiamen P. R. ChinaState Key Laboratory of Physical Chemistry of Solid Surfaces Department of Chemistry College of Chemistry and Chemical Engineering, iChem Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Xiamen University 361005 Xiamen P. R. ChinaAbstract Molecules with strong two‐photon absorption (TPA) are important in many advanced applications such as upconverted laser and photodynamic therapy, but their design is hampered by the high cost of experimental screening and accurate quantum chemical (QC) calculations. Here a systematic study is performed by collecting an experimental TPA database with ≈900 molecules, analyzing with interpretable machine learning (ML) the key molecular features explaining TPA magnitudes, and building a fast ML model for predictions. The ML model has prediction errors of similar magnitude compared to experimental and affordable QC methods errors and has the potential for high‐throughput screening as additionally validated with the new experimental measurements. ML feature analysis is generally consistent with common beliefs which is quantified and rectified. The most important feature is conjugation length followed by features reflecting the effects of donor and acceptor substitution and coplanarity.https://doi.org/10.1002/advs.202204902conjugation lengthmachine learningrational designtwo‐photon absorption
spellingShingle Yuming Su
Yiheng Dai
Yifan Zeng
Caiyun Wei
Yangtao Chen
Fuchun Ge
Peikun Zheng
Da Zhou
Pavlo O. Dral
Cheng Wang
Interpretable Machine Learning of Two‐Photon Absorption
Advanced Science
conjugation length
machine learning
rational design
two‐photon absorption
title Interpretable Machine Learning of Two‐Photon Absorption
title_full Interpretable Machine Learning of Two‐Photon Absorption
title_fullStr Interpretable Machine Learning of Two‐Photon Absorption
title_full_unstemmed Interpretable Machine Learning of Two‐Photon Absorption
title_short Interpretable Machine Learning of Two‐Photon Absorption
title_sort interpretable machine learning of two photon absorption
topic conjugation length
machine learning
rational design
two‐photon absorption
url https://doi.org/10.1002/advs.202204902
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AT yihengdai interpretablemachinelearningoftwophotonabsorption
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AT yangtaochen interpretablemachinelearningoftwophotonabsorption
AT fuchunge interpretablemachinelearningoftwophotonabsorption
AT peikunzheng interpretablemachinelearningoftwophotonabsorption
AT dazhou interpretablemachinelearningoftwophotonabsorption
AT pavloodral interpretablemachinelearningoftwophotonabsorption
AT chengwang interpretablemachinelearningoftwophotonabsorption