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• W2995736794 endingPage "490" @default.
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• W2995736794 abstract "Conjugated polymers represent a high-potential material class due to the tunability of their optoelectronic properties via straightforward processing protocols. However, to in silico tailor these optoelectronic properties, one must compute the conformationally dependent electronic structure over mesoscopic length and time scales. This task represents a challenging multiscale computational problem in which quantum chemistry and atomistic or coarse-grained molecular dynamics must be integrated. Recently, we introduced a methodology, called electronic coarse graining (ECG), that utilizes artificial neural networks to compute ab initio quality electronic structures using only the reduced degrees of freedom of coarse-grained models. Here, we adapt ECG to variable-molecular weight conjugated oligomers by casting the problem in the framework of sequence detection. A machine-learning (ML) architecture employing one-dimensional convolutional neural networks and long short-term memory networks is utilized to compute ground-state orbital energies, charge density distributions, and optical spectra solely from the coarse-grained model’s configurational degrees of freedom. Robust molecular weight transferability for ECG is established via a Δ-ML approach that leverages model electronic Hamiltonians for ground and excited-state property determination. The accuracy and transferability of the ECG methodology opens the door for scalable optoelectronic property prediction in conjugated polymers directly from coarse-grained degrees of freedom." @default.
• W2995736794 created "2019-12-26" @default.
• W2995736794 creator A5024672065 @default.
• W2995736794 creator A5048698394 @default.
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• W2995736794 date "2019-12-19" @default.
• W2995736794 modified "2023-10-01" @default.
• W2995736794 title "Efficient Multiscale Optoelectronic Prediction for Conjugated Polymers" @default.
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• W2995736794 doi "https://doi.org/10.1021/acs.macromol.9b02020" @default.
• W2995736794 hasPublicationYear "2019" @default.
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