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Santos-Ceballos JC, Salehnia F, Romero A, Vilanova X. Application of digital twins for simulation based tailoring of laser induced graphene. Sci Rep 2024; 14:10363. [PMID: 38710895 DOI: 10.1038/s41598-024-61237-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 05/02/2024] [Indexed: 05/08/2024] Open
Abstract
In the era of man-machine interfaces, digital twins stand as a key technology, offering virtual representations of real-world objects, processes, and systems through computational models. They enable novel ways of interacting with, comprehending, and manipulating real-world entities within a virtual realm. The real implementation of graphene-based sensors and electronic devices remains challenging due to the integration complexities of high-quality graphene materials with existing manufacturing processes. To address this, scalable techniques for the in-situ fabrication of graphene-like materials are essential. One promising method involves using a CO2 laser to convert polyimide into graphene. Optimizing this graphitization process is hindered by complex parameter interactions and nonlinear terms. This article explores how these digital replicas can enhance the fabrication of laser-induced graphene (LIG) through laser simulation and machine learning methods to enable rapid single-step LIG patterning. This approach aims to create a universal simulation for all CO2 lasers, calculating optical energy flux and utilizing machine learning to control and predict LIG conductivity (ability to conduct current), morphology, and electrical resistance. The proposed procedure, integrating digital twins in the LIG production process, will avoid or reduce the preliminary tests required to determine the proper laser parameters to reach the desired LIG characteristics. Accordingly, this approach will reduce the time and costs associated with these tests and thus increase the efficiency and optimize the procedure.
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Affiliation(s)
- José Carlos Santos-Ceballos
- Universitat Rovira i Virgili, Microsystems and Nanotechnologies for Chemical Analysis (MINOS), Tarragona, Spain
| | - Foad Salehnia
- Universitat Rovira i Virgili, Microsystems and Nanotechnologies for Chemical Analysis (MINOS), Tarragona, Spain.
| | - Alfonso Romero
- Universitat Rovira i Virgili, Microsystems and Nanotechnologies for Chemical Analysis (MINOS), Tarragona, Spain
| | - Xavier Vilanova
- Universitat Rovira i Virgili, Microsystems and Nanotechnologies for Chemical Analysis (MINOS), Tarragona, Spain
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2
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Deng T, Qiu P, Yin T, Li Z, Yang J, Wei T, Shi X. High-Throughput Strategies in the Discovery of Thermoelectric Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2311278. [PMID: 38176395 DOI: 10.1002/adma.202311278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/13/2023] [Indexed: 01/06/2024]
Abstract
Searching for new high-performance thermoelectric (TE) materials that are economical and environmentally friendly is an urgent task for TE society, but the advancements are greatly limited by the time-consuming and high cost of the traditional trial-and-error method. The significant progress achieved in the computing hardware, efficient computing methods, advance artificial intelligence algorithms, and rapidly growing material data have brought a paradigm shift in the investigation of TE materials. Many electrical and thermal performance descriptors are proposed and efficient high-throughput (HTP) calculation methods are developed with the purpose to quickly screen new potential TE materials from the material databases. Some HTP experiment methods are also developed which can increase the density of information obtained in a single experiment with less time and lower cost. In addition, machine learning (ML) methods are also introduced in thermoelectrics. In this review, the HTP strategies in the discovery of TE materials are systematically summarized. The applications of performance descriptor, HTP calculation, HTP experiment, and ML in the discovery of new TE materials are reviewed. In addition, the challenges and possible directions in future research are also discussed.
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Affiliation(s)
- Tingting Deng
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Pengfei Qiu
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tingwei Yin
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ze Li
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiong Yang
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Tianran Wei
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xun Shi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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3
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Zhang J, Zhao M, Zhong C, Liu J, Hu K, Lin X. Data-driven machine learning prediction of glass transition temperature and the glass-forming ability of metallic glasses. NANOSCALE 2023; 15:18511-18522. [PMID: 37946543 DOI: 10.1039/d3nr04380k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The limited glass-forming ability (GFA) poses a significant challenge for the practical applications of metallic glasses (MGs). The development of high-GFA MGs typically involves trial-and-error processes to screen materials with a large critical diameter (Dmax), which serves as a criterion for determining the GFA. The formation and stability of MGs are influenced by the glass transition temperature (Tg). Over the past decade, the emergence of machine learning (ML) has shown great promise in the exploration of high-GFA materials. However, the contribution of material features to Tg and Dmax predictions, as well as their correlations, remains ambiguous, posing a challenge to achieving high prediction accuracy. Herein, we present a comprehensive dataset consisting of 1764 datapoints for Tg and 1296 datapoints for Dmax. The governing rules for GFA have been established through feature significance analysis. The light gradient boosting (LGB) model exhibits remarkable accuracy in predicting Tg, utilizing sixteen features, achieving a coefficient of determination (R2) score of 0.984 and a root mean square error (RMSE) of 20.196 K. An integrated ML model, based on the weighted voting of three basic models, is developed to enhance the accuracy of Dmax prediction, achieving an R2 score of 0.767 and an RMSE of 2.331 mm. Additionally, a GFA rule is proposed to explore materials with large Dmax values, defined by satisfying the criteria of a thermal conductivity difference ranging from 0.60 to 1.32 and an entropy density exceeding 1.05. Our work provides valuable insights into Tg and Dmax predictions and facilitates the exploration of potential high-GFA MGs through the implementation of a well-established ML model and GFA rules.
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Affiliation(s)
- Jingzi Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Mengkun Zhao
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Chengquan Zhong
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Jiakai Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P. R. China
| | - Kailong Hu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P. R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Xi Lin
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, P. R. China.
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen 518055, P. R. China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, P. R. China
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4
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Masuda T, Kobayashi M, Yatani K. synapse: interactive support on photoemission spectroscopy measurement and analysis for non-expert users. JOURNAL OF SYNCHROTRON RADIATION 2023; 30:1127-1134. [PMID: 37885154 PMCID: PMC10624023 DOI: 10.1107/s1600577523008305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 09/21/2023] [Indexed: 10/28/2023]
Abstract
Photoemission spectroscopy, an experimental method based on the photoelectric effect, is now an indispensable technique used in various fields such as materials science, life science, medicine and nanotechnology. However, part of the experimental process of photoemission spectroscopy relies on experience and intuition, which is obviously a problem for novice users. In particular, photoemission spectroscopy experiments using high-brilliance synchrotron radiation as a light source are not easy for novice users because measurements must be performed quickly and accurately as scheduled within a limited experimental period. In addition, research on the application of information science methods to quantum data measurement, such as photoemission spectroscopy, is mainly aimed at the development of analysis methods, and few attempts have been made to clarify the problems faced by users who lack experience. In this study, the problems faced by novice users of photoemission spectroscopy are identified, and a native application named synapse with functions to solve these problems is implemented and evaluated qualitatively and quantitatively. This paper describes the contents of an interview survey, the functional design and the implementation of the application synapse based on the interview survey, and results and discussion of the evaluation experiment.
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Affiliation(s)
- Takuma Masuda
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Masaki Kobayashi
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Center for Spintronics Research Network, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Koji Yatani
- Department of Electrical Engineering and Information Systems, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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5
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Choubisa H, Haque MA, Zhu T, Zeng L, Vafaie M, Baran D, Sargent EH. Closed-Loop Error-Correction Learning Accelerates Experimental Discovery of Thermoelectric Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302575. [PMID: 37378643 DOI: 10.1002/adma.202302575] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/29/2023] [Indexed: 06/29/2023]
Abstract
The exploration of thermoelectric materials is challenging considering the large materials space, combined with added exponential degrees of freedom coming from doping and the diversity of synthetic pathways. Here, historical data is incorporated, and is updated using experimental feedback by employing error-correction learning (ECL). This is achieved by learning from prior datasets and then adapting the model to differences in synthesis and characterization that are otherwise difficult to parameterize. This strategy is thus applied to discovering thermoelectric materials, where synthesis is prioritized at temperatures <300 °C. A previously unexplored chemical family of thermoelectric materials, PbSe:SnSb, is documented, finding that the best candidate in this chemical family, 2 wt% SnSb doped PbSe, exhibits a power factor more than 2× that of PbSe. The investigations herein reveal that a closed-loop experimentation strategy reduces the required number of experiments to find an optimized material by a factor as high as 3× compared to high-throughput searches powered by state-of-the-art machine-learning (ML) models. It is also observed that this improvement is dependent on the accuracy of the ML model in a manner that exhibits diminishing returns: once a certain accuracy is reached, factors that are instead associated with experimental pathways begin to dominate trends.
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Affiliation(s)
- Hitarth Choubisa
- Department of Electrical and Computer Engineering University of Toronto, Toronto, Ontario, M5S 3G8, Canada
| | - Md Azimul Haque
- King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division, KAUST Solar Center (KSC), Thuwal, 23955, Saudi Arabia
| | - Tong Zhu
- Department of Electrical and Computer Engineering University of Toronto, Toronto, Ontario, M5S 3G8, Canada
| | - Lewei Zeng
- Department of Electrical and Computer Engineering University of Toronto, Toronto, Ontario, M5S 3G8, Canada
| | - Maral Vafaie
- Department of Electrical and Computer Engineering University of Toronto, Toronto, Ontario, M5S 3G8, Canada
| | - Derya Baran
- King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division, KAUST Solar Center (KSC), Thuwal, 23955, Saudi Arabia
| | - Edward H Sargent
- Department of Electrical and Computer Engineering University of Toronto, Toronto, Ontario, M5S 3G8, Canada
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6
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Xie S. Perspectives on development of biomedical polymer materials in artificial intelligence age. J Biomater Appl 2023; 37:1355-1375. [PMID: 36629787 DOI: 10.1177/08853282231151822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Polymer materials are widely used in biomedicine, chemistry and material science, whose traditional preparations are mainly based on experience, intuition and conceptual insight, having been applied to the development of many new materials, but facing great challenges due to the vast design space for biomedical polymers. So far, the best way to solve these problems is to accelerate material design through artificial intelligence, especially machine learning. Herein, this paper will introduce several successful cases, and analyze the latest progress of machine learning in the field of biomedical polymers, then discuss the opportunities of this novel method. In particular, this paper summarizes the material database, open-source determination tools, molecular generation methods and machine learning models that have been used for biopolymer synthesis and property prediction. Overall, machine learning could be more effectively deployed on the material design of biomedical polymers, and it is expected to become an extensive driving force to meet the huge demand for customized designs.
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Affiliation(s)
- Shijin Xie
- 2281The University of Melbourne, Melbourne, VIC, Australia
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7
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Wang X, Sheng Y, Ning J, Xi J, Xi L, Qiu D, Yang J, Ke X. A Critical Review of Machine Learning Techniques on Thermoelectric Materials. J Phys Chem Lett 2023; 14:1808-1822. [PMID: 36763950 DOI: 10.1021/acs.jpclett.2c03073] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Thermoelectric (TE) materials can directly convert heat to electricity and vice versa and have broad application potential for solid-state power generation and refrigeration. Over the past few decades, efforts have been made to develop new TE materials with high performance. However, traditional experiments and simulations are expensive and time-consuming, limiting the development of new materials. Machine learning (ML) has been increasingly applied to study TE materials in recent years. This paper reviews the recent progress in ML-based TE material research. The application of ML in predicting and optimizing the properties of TE materials, including electrical and thermal transport properties and optimization of functional materials with targeted TE properties, is reviewed. Finally, future research directions are discussed.
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Affiliation(s)
- Xiangdong Wang
- Materials Genome Institute, Shanghai University, Shanghai200444, China
- School of Physics and Electronic Science, East China Normal University, Shanghai200241, China
| | - Ye Sheng
- Materials Genome Institute, Shanghai University, Shanghai200444, China
| | - Jinyan Ning
- Materials Genome Institute, Shanghai University, Shanghai200444, China
| | - Jinyang Xi
- Materials Genome Institute, Shanghai University, Shanghai200444, China
- Zhejiang Laboratory, Hangzhou, Zhejiang311100, China
| | - Lili Xi
- Materials Genome Institute, Shanghai University, Shanghai200444, China
- Zhejiang Laboratory, Hangzhou, Zhejiang311100, China
| | - Di Qiu
- Materials Genome Institute, Shanghai University, Shanghai200444, China
- Zhejiang Laboratory, Hangzhou, Zhejiang311100, China
| | - Jiong Yang
- Materials Genome Institute, Shanghai University, Shanghai200444, China
- Zhejiang Laboratory, Hangzhou, Zhejiang311100, China
| | - Xuezhi Ke
- School of Physics and Electronic Science, East China Normal University, Shanghai200241, China
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8
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Kaneko D, Kaneko H, Hayashi F, Fukaishi K, Yamada T, Teshima K. Process-Informatics-Assisted Preparation of Lithium Titanate Crystals with Various Sizes and Morphologies. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Daigo Kaneko
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki-shi, Kanagawa-ken214-8571, Japan
| | - Hiromasa Kaneko
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashi-Mita, Tama-ku, Kawasaki-shi, Kanagawa-ken214-8571, Japan
| | - Fumitaka Hayashi
- Department of Materials Chemistry, Faculty of Engineering; Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano380-8553, Japan
| | - Kohei Fukaishi
- Department of Materials Chemistry, Faculty of Engineering; Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano380-8553, Japan
| | - Tetsuya Yamada
- Department of Materials Chemistry, Faculty of Engineering; Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano380-8553, Japan
| | - Katsuya Teshima
- Department of Materials Chemistry, Faculty of Engineering; Research Initiative for Supra-Materials, Shinshu University, 4-17-1 Wakasato, Nagano380-8553, Japan
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9
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Li M, Dai L, Hu Y. Machine Learning for Harnessing Thermal Energy: From Materials Discovery to System Optimization. ACS ENERGY LETTERS 2022; 7:3204-3226. [PMID: 37325775 PMCID: PMC10264155 DOI: 10.1021/acsenergylett.2c01836] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Recent advances in machine learning (ML) have impacted research communities based on statistical perspectives and uncovered invisibles from conventional standpoints. Though the field is still in the early stage, this progress has driven the thermal science and engineering communities to apply such cutting-edge toolsets for analyzing complex data, unraveling abstruse patterns, and discovering non-intuitive principles. In this work, we present a holistic overview of the applications and future opportunities of ML methods on crucial topics in thermal energy research, from bottom-up materials discovery to top-down system design across atomistic levels to multi-scales. In particular, we focus on a spectrum of impressive ML endeavors investigating the state-of-the-art thermal transport modeling (density functional theory, molecular dynamics, and Boltzmann transport equation), different families of materials (semiconductors, polymers, alloys, and composites), assorted aspects of thermal properties (conductivity, emissivity, stability, and thermoelectricity), and engineering prediction and optimization (devices and systems). We discuss the promises and challenges of current ML approaches and provide perspectives for future directions and new algorithms that could make further impacts on thermal energy research.
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Affiliation(s)
- Man Li
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Lingyun Dai
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Yongjie Hu
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
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10
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Wang Z, Sun Z, Yin H, Liu X, Wang J, Zhao H, Pang CH, Wu T, Li S, Yin Z, Yu XF. Data-Driven Materials Innovation and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2104113. [PMID: 35451528 DOI: 10.1002/adma.202104113] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 03/19/2022] [Indexed: 05/07/2023]
Abstract
Owing to the rapid developments to improve the accuracy and efficiency of both experimental and computational investigative methodologies, the massive amounts of data generated have led the field of materials science into the fourth paradigm of data-driven scientific research. This transition requires the development of authoritative and up-to-date frameworks for data-driven approaches for material innovation. A critical discussion on the current advances in the data-driven discovery of materials with a focus on frameworks, machine-learning algorithms, material-specific databases, descriptors, and targeted applications in the field of inorganic materials is presented. Frameworks for rationalizing data-driven material innovation are described, and a critical review of essential subdisciplines is presented, including: i) advanced data-intensive strategies and machine-learning algorithms; ii) material databases and related tools and platforms for data generation and management; iii) commonly used molecular descriptors used in data-driven processes. Furthermore, an in-depth discussion on the broad applications of material innovation, such as energy conversion and storage, environmental decontamination, flexible electronics, optoelectronics, superconductors, metallic glasses, and magnetic materials, is provided. Finally, how these subdisciplines (with insights into the synergy of materials science, computational tools, and mathematics) support data-driven paradigms is outlined, and the opportunities and challenges in data-driven material innovation are highlighted.
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Affiliation(s)
- Zhuo Wang
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, 315100, P. R. China
| | - Zhehao Sun
- Research School of Chemistry, The Australian National University, ACT, 2601, Australia
| | - Hang Yin
- Research School of Chemistry, The Australian National University, ACT, 2601, Australia
| | - Xinghui Liu
- Department of Chemistry, Sungkyunkwan University (SKKU), 2066 Seoburo, Jangan-Gu, Suwon, 16419, Republic of Korea
| | - Jinlan Wang
- School of Physics, Southeast University, Nanjing, 211189, P. R. China
| | - Haitao Zhao
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
| | - Cheng Heng Pang
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo, 315100, P. R. China
- Municipal Key Laboratory of Clean Energy Conversion Technologies, University of Nottingham Ningbo China, Ningbo, 315100, P. R. China
| | - Tao Wu
- Key Laboratory for Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang Province, University of Nottingham Ningbo China, Ningbo, 315100, P. R. China
- New Materials Institute, University of Nottingham, Ningbo, China, Ningbo, 315100, P. R. China
| | - Shuzhou Li
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Zongyou Yin
- Research School of Chemistry, The Australian National University, ACT, 2601, Australia
| | - Xue-Feng Yu
- Materials Interfaces Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, 518055, P. R. China
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11
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Liu W, Wu Y, Hong Y, Zhang Z, Yue Y, Zhang J. Applications of machine learning in computational nanotechnology. NANOTECHNOLOGY 2022; 33:162501. [PMID: 34965514 DOI: 10.1088/1361-6528/ac46d7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/28/2021] [Indexed: 06/14/2023]
Abstract
Machine learning (ML) has gained extensive attention in recent years due to its powerful data analysis capabilities. It has been successfully applied to many fields and helped the researchers to achieve several major theoretical and applied breakthroughs. Some of the notable applications in the field of computational nanotechnology are ML potentials, property prediction, and material discovery. This review summarizes the state-of-the-art research progress in these three fields. ML potentials bridge the efficiency versus accuracy gap between density functional calculations and classical molecular dynamics. For property predictions, ML provides a robust method that eliminates the need for repetitive calculations for different simulation setups. Material design and drug discovery assisted by ML greatly reduce the capital and time investment by orders of magnitude. In this perspective, several common ML potentials and ML models are first introduced. Using these state-of-the-art models, developments in property predictions and material discovery are overviewed. Finally, this paper was concluded with an outlook on future directions of data-driven research activities in computational nanotechnology.
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Affiliation(s)
- Wenxiang Liu
- Key Laboratory of Hydraulic Machinery Transients (MOE), School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Yongqiang Wu
- Weichai Power CO., Ltd, Weifang 261061, People's Republic of China
| | - Yang Hong
- Research Computing, RCAC, Purdue University, West Lafayette, IN 47907, United States of America
| | - Zhongtao Zhang
- Holland Computing Center, University of Nebraska-Lincoln, Lincoln, NE, United States of America
| | - Yanan Yue
- Key Laboratory of Hydraulic Machinery Transients (MOE), School of Power and Mechanical Engineering, Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - Jingchao Zhang
- NVIDIA AI Technology Center (NVAITC), Santa Clara, CA 95051, United States of America
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12
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Machine Learning Approach for Maximizing Thermoelectric Properties of BiCuSeO and Discovering New Doping Element. ENERGIES 2022. [DOI: 10.3390/en15030779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Machine learning (ML) has increasingly received interest as a new approach to accelerating development in materials science. It has been applied to thermoelectric materials research for discovering new materials and designing experiments. Generally, the amount of data in thermoelectric materials research, especially experimental data, is very small leading to an undesirable ML model. In this work, the ML model for predicting ZT of the doped BiCuSeO was implemented. The method to improve the model was presented step-by-step. This included normalizing the experimental ZT of the doped BiCuSeO with the pristine BiCuSeO, selecting data for the BiCuSeO doped at Bi-site only, and limiting important features for the model construction. The modified model showed significant improvement, with the R2 of 0.93, compared to the original model (R2 of 0.57). The model was validated and used to predict the ZT of the unknown doped BiCuSeO compounds. The predicted result was logically justified based on the thermoelectric principle. It means that the ML model can guide the experiments to improve the thermoelectric properties of BiCuSeO and can be extended to other materials.
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13
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Huelsenbeck L, Jung S, Herrera Del Valle R, Balachandran PV, Giri G. Accelerated HKUST-1 Thin-Film Property Optimization Using Active Learning. ACS APPLIED MATERIALS & INTERFACES 2021; 13:61827-61837. [PMID: 34913674 DOI: 10.1021/acsami.1c20788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A flow-coating method termed solution shearing has been shown to grow large-area thin films with no void spaces. Attaining full coverage is one of the key prerequisites for the adoption of any metal-organic framework (MOF) thin film for a variety of practical applications, including separation, membranes and sensors. However, the solution-shearing process has multiple discrete and continuous parameters that can be varied, including the metal ion and linker concentrations, solvents, substrate temperature, coating speed, and the number of coating passes. Optimization of these parameters for full coverage is a time-consuming and daunting process due to vast parameter space. Here, we incorporate an active learning approach into the solution-sheared HKUST-1 thin-film-processing parameters to control the coverage and extend the approach to gain control over the thickness. The understanding of high-quality MOF thin-film formation using solution shearing is improved by correlating the processing parameter sets and their corresponding film coverage. A large area and fully covered HKUST-1 thin film with a minimized thickness of 2.2 μm is fabricated by using guidance from active learning. To confirm full coverage, a redox-active molecule, called 7,7,8,8-tetracyanoquinodimethane (TCNQ), is incorporated along with the HKUST-1 thin film. The TCNQ@HKUST-1 thin film with a minimized thickness has the same order of magnitude of electrical conductivity as that of the TCNQ@HKUST-1 thin film created previously while reducing the film thickness by 60%. We show that active learning has the potential to rapidly navigate the vast processing space in multicomponent systems, especially when experiments are expensive and traditional computational models are not readily available for process optimization.
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Affiliation(s)
- Luke Huelsenbeck
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Sangeun Jung
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Roberto Herrera Del Valle
- Department of Material Science and Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Prasanna V Balachandran
- Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Gaurav Giri
- Department of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
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Takagiwa Y, Hou Z, Tsuda K, Ikeda T, Kojima H. Fe-Al-Si Thermoelectric (FAST) Materials and Modules: Diffusion Couple and Machine-Learning-Assisted Materials Development. ACS APPLIED MATERIALS & INTERFACES 2021; 13:53346-53354. [PMID: 34019762 DOI: 10.1021/acsami.1c04583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
To lower the introduction and maintenance costs of autonomous power supplies for driving Internet-of-things (IoT) devices, we have developed low-cost Fe-Al-Si-based thermoelectric (FAST) materials and power generation modules. Our development approach combines computational science, experiments, mapping measurements, and machine learning (ML). FAST materials have a good balance of mechanical properties and excellent chemical stability, superior to that of conventional Bi-Te-based materials. However, it remains challenging to enhance the power factor (PF) and lower the thermal conductivity of FAST materials to develop reliable power generation devices. This forum paper describes the current status of materials development based on experiments and ML with limited data, together with power generation module fabrication related to FAST materials with a view to commercialization. Combining bulk combinatorial methods with diffusion couple and mapping measurements could accelerate the search to enhance PF for FAST materials. We report that ML prediction is a powerful tool for finding unexpected off-stoichiometric compositions of the Fe-Al-Si system and dopant concentrations of a fourth element to enhance the PF, i.e., Co substitution for Fe atoms in FAST materials.
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Affiliation(s)
- Yoshiki Takagiwa
- National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0047, Japan
| | - Zhufeng Hou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Koji Tsuda
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
| | - Teruyuki Ikeda
- Department of Materials Science and Engineering, Ibaraki University, Hitachi, Ibaraki 316-8511, Japan
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15
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Guan S, Shang C, Liu Z. Structure and Dynamics of Energy Materials from Machine Learning Simulations: A Topical Review
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100299] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shu‐Hui Guan
- Shanghai Academy of Agricultural Sciences Shanghai 201403 China
- Collaborative Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory of molecular Catalysis and Innovative Materials, Key Laboratory of Computational Physical Science, Department of Chemistry Fudan University Shanghai 200438 China
| | - Cheng Shang
- Collaborative Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory of molecular Catalysis and Innovative Materials, Key Laboratory of Computational Physical Science, Department of Chemistry Fudan University Shanghai 200438 China
| | - Zhi‐Pan Liu
- Collaborative Innovation Center of Chemistry for Energy Material, Shanghai Key Laboratory of molecular Catalysis and Innovative Materials, Key Laboratory of Computational Physical Science, Department of Chemistry Fudan University Shanghai 200438 China
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16
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Hou Z, Takagiwa Y, Shinohara Y, Xu Y, Tsuda K. First-principles study of electronic structures and elasticity of Al 2Fe 3Si 3. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:195501. [PMID: 33561849 DOI: 10.1088/1361-648x/abe474] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
Al2Fe3Si3intermetallic compound shows promising application in low-cost and non-toxic thermoelectric device because of its relatively high power factor of ∼700μW m-1 K-2at 400 K. Herein we performed the first-principles calculations with the projector augmented-wave (PAW) method to study the formation energies, elastic constants, electronic structures, and electronic transport properties of Al2Fe3Si3. We discussed the thermodynamical stability of Al2Fe3Si3against other ternary crystalline compounds in Al-Fe-Si phase. The band gap of Al2Fe3Si3was particularly examined using the semilocal and hybrid functionals and the on-site Hubbard correction, which were also applied to β-FeSi2to calibrate the prediction reliability of our employed computational methods. Our calculations show that Al2Fe3Si3is a narrow-gap semiconductor. The semilocal functional within generalized gradient approximation (GGA) shows an exceptional agreement between the predicted band gap of Al2Fe3Si3and the available experiment data, which is in contrast to the typical trend and rationally understood through a comprehensive comparison. We found that both HSE06 and PBE0 hybrid functionals with a standard setup overestimated the band gaps of Al2Fe3Si3and β-FeSi2too much. The underlying reasons may be ascribed to a large electronic screening, which arises from the unique characteristics of Fe 3dstates appearing in both sides of band gaps of Al2Fe3Si3and β-FeSi2, and to a reduced delocalization error thanks to the covalent Fe-Si and Si-Si bonding nature. The chemical bonding and elasticity of Al2Fe3Si3were compared with those of β-FeSi2and FeAl2. In Al2Fe3Si3the Fe-Al bonding is more ionic and the Fe-Si bonding is more covalent. The elastic moduli of Al2Fe3Si3are comparable to those of β-FeSi2and larger than those of FeAl2. Our calculation results indicate that the mechanical strength of Al2Fe3Si3could be strong enough for the practical application in thermoelectric device.
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Affiliation(s)
- Zhufeng Hou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, People's Republic of China
| | - Yoshiki Takagiwa
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Yoshikazu Shinohara
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Yibin Xu
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Koji Tsuda
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Japan
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17
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First-Principles Study on Lattice Dynamics and Thermal Conductivity of Thermoelectric Intermetallics Fe3Al2Si3. CRYSTALS 2021. [DOI: 10.3390/cryst11040388] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Thermoelectric materials have been expected as a critical underlying technology for developing an autonomous power generation system driven at near room temperature. For this sake, Fe3Al2Si3 intermetallic compound is a promising candidate, though its high lattice thermal conductivity is a bottleneck toward practical applications. Herein, we have performed the first-principles calculations to clarify the microscopic mechanism of thermal transport and establish effective ways to reduce the lattice thermal conductivity of Fe3Al2Si3. Our calculations show that the lowest-lying optical mode has a significant contribution from Al atom vibration. It should correspond to large thermal displacements Al atoms. However, these behaviors do not directly cause an increase of the 3-phonon scattering rate. The calculated lattice thermal conductivity shows a typical temperature dependence and moderate magnitude. From the calculated thermal conductivity spectrum and cumulative thermal conductivity, we can see that there is much room to reduce the lattice thermal conductivity. We can expect that heavy-element doping on Al site and controlling fine microstructure are effective strategies to decrease the lattice thermal conductivity. This work suggests useful information to manipulate the thermal transport of Fe3Al2Si3, which will make this material closer to practical use.
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Terayama K, Sumita M, Tamura R, Tsuda K. Black-Box Optimization for Automated Discovery. Acc Chem Res 2021; 54:1334-1346. [PMID: 33635621 DOI: 10.1021/acs.accounts.0c00713] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In chemistry and materials science, researchers and engineers discover, design, and optimize chemical compounds or materials with their professional knowledge and techniques. At the highest level of abstraction, this process is formulated as black-box optimization. For instance, the trial-and-error process of synthesizing various molecules for better material properties can be regarded as optimizing a black-box function describing the relation between a chemical formula and its properties. Various black-box optimization algorithms have been developed in the machine learning and statistics communities. Recently, a number of researchers have reported successful applications of such algorithms to chemistry. They include the design of photofunctional molecules and medical drugs, optimization of thermal emission materials and high Li-ion conductive solid electrolytes, and discovery of a new phase in inorganic thin films for solar cells.There are a wide variety of algorithms available for black-box optimization, such as Bayesian optimization, reinforcement learning, and active learning. Practitioners need to select an appropriate algorithm or, in some cases, develop novel algorithms to meet their demands. It is also necessary to determine how to best combine machine learning techniques with quantum mechanics- and molecular mechanics-based simulations, and experiments. In this Account, we give an overview of recent studies regarding automated discovery, design, and optimization based on black-box optimization. The Account covers the following algorithms: Bayesian optimization to optimize the chemical or physical properties, an optimization method using a quantum annealer, best-arm identification, gray-box optimization, and reinforcement learning. In addition, we introduce active learning and boundless objective-free exploration, which may not fall into the category of black-box optimization.Data quality and quantity are key for the success of these automated discovery techniques. As laboratory automation and robotics are put forward, automated discovery algorithms would be able to match human performance at least in some domains in the near future.
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Affiliation(s)
- Kei Terayama
- Graduate School of Medical Life Science, Yokohama City University, Tsurumi-ku 230-0045, Japan
- RIKEN Center for Advanced Intelligence Project, Tokyo 103-0027, Japan
- Medical Sciences Innovation Hub Program, RIKEN, Yokohama 230-0045, Japan
- Graduate School of Medicine, Kyoto University, Sakyo-ku 606-8507, Japan
| | - Masato Sumita
- RIKEN Center for Advanced Intelligence Project, Tokyo 103-0027, Japan
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, Tsukuba 305-0044, Japan
| | - Ryo Tamura
- RIKEN Center for Advanced Intelligence Project, Tokyo 103-0027, Japan
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, Tsukuba 305-0044, Japan
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, Tsukuba 305-0047, Japan
| | - Koji Tsuda
- RIKEN Center for Advanced Intelligence Project, Tokyo 103-0027, Japan
- Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, Tsukuba 305-0047, Japan
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Descriptor selection for predicting interfacial thermal resistance by machine learning methods. Sci Rep 2021; 11:739. [PMID: 33436976 PMCID: PMC7804206 DOI: 10.1038/s41598-020-80795-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 12/28/2020] [Indexed: 01/29/2023] Open
Abstract
Interfacial thermal resistance (ITR) is a critical property for the performance of nanostructured devices where phonon mean free paths are larger than the characteristic length scales. The affordable, accurate and reliable prediction of ITR is essential for material selection in thermal management. In this work, the state-of-the-art machine learning methods were employed to realize this. Descriptor selection was conducted to build robust models and provide guidelines on determining the most important characteristics for targets. Firstly, decision tree (DT) was adopted to calculate the descriptor importances. And descriptor subsets with topX highest importances were chosen (topX-DT, X = 20, 15, 10, 5) to build models. To verify the transferability of the descriptors picked by decision tree, models based on kernel ridge regression, Gaussian process regression and K-nearest neighbors were also evaluated. Afterwards, univariate selection (UV) was utilized to sort descriptors. Finally, the top5 common descriptors selected by DT and UV were used to build concise models. The performance of these refined models is comparable to models using all descriptors, which indicates the high accuracy and reliability of these selection methods. Our strategy results in concise machine learning models for a fast prediction of ITR for thermal management applications.
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20
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Sasaki M, Ju S, Xu Y, Shiomi J, Goto M. Identifying Optimal Strain in Bismuth Telluride Thermoelectric Film by Combinatorial Gradient Thermal Annealing and Machine Learning. ACS COMBINATORIAL SCIENCE 2020; 22:782-790. [PMID: 33146513 DOI: 10.1021/acscombsci.0c00112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The thermoelectric properties of bismuth telluride thin film (BTTF) was tuned by inducing internal strain through a combination of combinatorial gradient thermal annealing (COGTAN) and machine learning. BTTFs were synthesized via magnetron sputter coating and then treated by COGTAN. The crystal structure and thermoelectric properties, namely Seebeck coefficient and thermal conductivity, of the treated samples were analyzed via micropoint X-ray diffraction and scanning thermal probe microimaging, respectively. The obtained combinatorial data reveals the correlation between internal strain and the thermoelectric properties. The Seebeck coefficient of BTTF exhibits largest sensitivity, where the value ranges from 7.9 to -108 μV/K. To further explore the possibility to enhance Seebeck coefficient, the combinatorial data were subjected to machine learning. The trained model predicts that optimal strains of 3-4% and 1-2% along the a- and c-axis, respectively, significantly improve Seebeck coefficient. The technique demonstrated herein can be used to predict and enhance the performance of thermoelectric materials by inducing internal strain.
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Affiliation(s)
- Michiko Sasaki
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Shenghong Ju
- Department of Mechanical Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai 201306, China
- Materials Genome Initiative Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yibin Xu
- Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Junichiro Shiomi
- Department of Mechanical Engineering, The University of Tokyo, Bunkyo, Tokyo 113-8656, Japan
- Research and Services Division of Materials Data and Integrated System (MaDIS), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Masahiro Goto
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
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21
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Barreteau C, Crivello JC, Joubert JM, Alleno E. Optimization of Criteria for an Efficient Screening of New Thermoelectric Compounds: The TiNiSi Structure-Type as a Case-Study. ACS COMBINATORIAL SCIENCE 2020; 22:813-820. [PMID: 33078940 DOI: 10.1021/acscombsci.0c00133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
High-throughput calculations can be applied to a large number of compounds, in order to discover new useful materials. In the present work, ternary intermetallic compounds are investigated, to find new potentially interesting materials for thermoelectric applications. The screening of stable nonmetallic compounds required for such applications is performed by calculating their electronic structure, using DFT methods. In the first section, the study of the density of states at the Fermi level, of pure elements, binary and ternary compounds, leads to empirically chose the selection criterion to distinguish metals from nonmetals. In the second section, the TiNiSi structure-type is used as a case-study application, through the investigation of 570 possible compositions. The screening leads to the selection of 12 possible semiconductors. The Seebeck coefficient and the lattice thermal conductivity of the selected compounds are calculated in order to identify the most promising ones. Among them, TiNiSi, TaNiP, or HfCoP are shown to be worth a detailed experimental investigation.
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Affiliation(s)
- Celine Barreteau
- Université Paris Est Créteil, CNRS, ICMPE, UMR7182, F-94320, Thiais, France
| | | | - Jean-Marc Joubert
- Université Paris Est Créteil, CNRS, ICMPE, UMR7182, F-94320, Thiais, France
| | - Eric Alleno
- Université Paris Est Créteil, CNRS, ICMPE, UMR7182, F-94320, Thiais, France
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Predicting materials properties without crystal structure: deep representation learning from stoichiometry. Nat Commun 2020; 11:6280. [PMID: 33293567 PMCID: PMC7722901 DOI: 10.1038/s41467-020-19964-7] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 11/04/2020] [Indexed: 01/31/2023] Open
Abstract
Machine learning has the potential to accelerate materials discovery by accurately predicting materials properties at a low computational cost. However, the model inputs remain a key stumbling block. Current methods typically use descriptors constructed from knowledge of either the full crystal structure — therefore only applicable to materials with already characterised structures — or structure-agnostic fixed-length representations hand-engineered from the stoichiometry. We develop a machine learning approach that takes only the stoichiometry as input and automatically learns appropriate and systematically improvable descriptors from data. Our key insight is to treat the stoichiometric formula as a dense weighted graph between elements. Compared to the state of the art for structure-agnostic methods, our approach achieves lower errors with less data. Predicting the structure of unknown materials’ compositions represents a challenge for high-throughput computational approaches. Here the authors introduce a new stoichiometry-based machine learning approach for predicting the properties of inorganic materials from their elemental compositions.
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Takagiwa Y, Ikeda T, Kojima H. Earth-Abundant Fe-Al-Si Thermoelectric (FAST) Materials: from Fundamental Materials Research to Module Development. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48804-48810. [PMID: 33054167 DOI: 10.1021/acsami.0c15063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To develop an autonomous power generation technology to support an internet-of-things (IoT) society, we proposed low-cost and nontoxic Fe-Al-Si-based thermoelectric (FAST) materials consisting of an Fe3Al2Si3 phase. Because of the cost-effectiveness and easy disposal of FAST materials, they are attractive for autonomous power supplies to drive IoT sensors and devices. While bismuth-tellurium-based thermoelectric power generation modules have been commercialized, the discovery of FAST materials opens an additional route to generate power from waste heat at room temperature under a small temperature difference, which will expand the diversity of applications of thermoelectric power generation modules. This paper reports the thermoelectric properties of FAST materials synthesized by conventional laboratory-scale synthesis and mass production processes, enhancement of power factor less than 600 K through homogenization and removal of metallic precipitations, development of thermoelectric power generation modules, and the results of power generation tests. The operation of temperature/humidity sensors and wireless transmission by Bluetooth low energy communication using FAST materials-based modules under a small temperature difference at room temperature was demonstrated.
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Affiliation(s)
- Yoshiki Takagiwa
- National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Teruyuki Ikeda
- Department of Materials Science and Engineering, Ibaraki University, 4-12-1, Nakanarusawa, Hitachi, Ibaraki 316-8511, Japan
| | - Hiroyasu Kojima
- Aisin Seiki Co. Ltd., 2-1 Asahi-cho, Kariya, Aichi 448-8650, Japan
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