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Title: Active learning for accelerated design of layered materials

Journal Article · · npj Computational Materials
 [1]; ORCiD logo [2];  [3]; ORCiD logo [3];  [4];  [5]; ORCiD logo [5];  [6];  [6];  [6];  [3]
  1. Univ. of Southern California, Los Angeles, CA (United States). Collaboratory for Advanced Computing and Simulations, Dept. of Physics and Astronomy
  2. Univ. of Southern California, Los Angeles, CA (United States). Collaboratory for Advanced Computing and Simulations, and Dept. of Computer Science
  3. Univ. of Southern California, Los Angeles, CA (United States). Collaboratory for Advanced Computing and Simulations, Dept. of Physics and Astronomy, and Dept. of Chemical Engineering and Material Science, and Dept. of Computer Science
  4. Univ. of Southern California, Los Angeles, CA (United States). Dept. of Chemical Engineering and Material Science, and Dept. of Computer Science
  5. Univ. of Missouri, Columbia, MO (United States). Dept. of Physics and Astronomy
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Hetero-structures made from vertically stacked monolayers of transition metal dichalcogenides hold great potential for optoelectronic and thermoelectric devices. Discovery of the optimal layered material for specific applications necessitates the estimation of key material properties, such as electronic band structure and thermal transport coefficients. However, screening of material properties via brute force ab initio calculations of the entire material structure space exceeds the limits of current computing resources. Moreover, the functional dependence of material properties on the structures is often complicated, making simplistic statistical procedures for prediction difficult to employ without large amounts of data collection. Here, we present a Gaussian process regression model, which predicts material properties of an input hetero-structure, as well as an active learning model based on Bayesian optimization, which can efficiently discover the optimal hetero-structure using a minimal number of ab initio calculations. The electronic band gap, conduction/valence band dispersions, and thermoelectric performance are used as representative material properties for prediction and optimization. The Materials Project platform is used for electronic structure computation, while the BoltzTraP code is used to compute thermoelectric properties. Bayesian optimization is shown to significantly reduce the computational cost of discovering the optimal structure when compared with finding an optimal structure by building a regression model to predict material properties. The models can be used for predictions with respect to any material property and our software, including data preparation code based on the Python Materials Genomics (PyMatGen) library as well as python-based machine learning code, is available open source.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1494091
Journal Information:
npj Computational Materials, Vol. 4, Issue 1; ISSN 2057-3960
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 81 works
Citation information provided by
Web of Science

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Cited By (12)

Machine Learning Approaches for Thermoelectric Materials Research journal November 2019
Recent advances and applications of machine learning in solid-state materials science journal August 2019
A fast neural network approach for direct covariant forces prediction in complex multi-element extended systems journal September 2019
Screening billions of candidates for solid lithium-ion conductors: A transfer learning approach for small data journal June 2019
From DFT to machine learning: recent approaches to materials science–a review journal May 2019
Rocketsled: a software library for optimizing high-throughput computational searches journal April 2019
Electronic structure as a guide in screening for potential thermoelectrics: Demonstration for half-Heusler compounds journal August 2019
Active-learning and materials design: the example of high glass transition temperature polymers journal June 2019
Materials science in the artificial intelligence age: high-throughput library generation, machine learning, and a pathway from correlations to the underpinning physics journal July 2019
Active learning of deep surrogates for PDEs: application to metasurface design journal October 2020
Scalable Gaussian Processes for Predicting the Properties of Inorganic Glasses with Large Datasets preprint January 2020
Efficient Estimation of Material Property Curves and Surfaces via Active Learning text January 2020

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