{"id":61737,"date":"2024-03-01T00:00:51","date_gmt":"2024-02-29T16:00:51","guid":{"rendered":"https:\/\/www.science.nus.edu.sg\/?p=61737"},"modified":"2024-03-04T15:13:46","modified_gmt":"2024-03-04T07:13:46","slug":"ai-enabled-atomic-robotic-probe-to-advance-quantum-material-manufacturing","status":"publish","type":"post","link":"https:\/\/www.science.nus.edu.sg\/blog\/2024\/03\/ai-enabled-atomic-robotic-probe-to-advance-quantum-material-manufacturing\/","title":{"rendered":"AI-enabled atomic robotic probe to advance quantum material manufacturing"},"content":{"rendered":"<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">National University of Singapore (NUS) scientists have pioneered a new methodology of fabricating carbon-based quantum materials at the atomic scale by integrating scanning probe microscopy techniques and deep neural networks. This breakthrough highlights the potential of implementing artificial intelligence (AI) at the sub-angstrom scale for enhanced control over atomic manufacturing, benefiting both fundamental research and future applications.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">Open-shell magnetic nanographenes represent a technologically appealing class of new carbon-based quantum materials, which host robust \u03c0-spin centres and non-trivial collective quantum magnetism. These properties are crucial for developing high-speed electronic devices at the molecular level and creating quantum bits, the building blocks of quantum computers. Despite significant advancements in the synthesis of these materials through on-surface synthesis, a type of solid-phase chemical reaction, achieving precise fabrication and tailoring of the properties of these quantum materials at the atomic level has remained a challenge.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">The research team, led by Associate Professor Jiong LU from the Department of Chemistry and the Institute for Functional Intelligent Materials, together with Associate Professor Chun ZHANG from both the Departments of Physics and Chemistry, at NUS, have introduced the concept of the chemist-intuited atomic robotic probe (CARP) by integrating probe chemistry knowledge and artificial intelligence to fabricate and characterise open-shell magnetic nanographenes at the single-molecule level. This allows for precise engineering of their \u03c0-electron topology and spin configurations in an automated manner, mirroring the capabilities of human chemists. The CARP concept, utilises deep neural networks trained using the experience and knowledge of surface science chemists, to autonomously synthesize open-shell magnetic nanographenes. It can also extract chemical information from the experimental training database, offering conjunctures about unknown mechanisms. This serves as an essential supplement to theoretical simulations, contributing to a more comprehensive understanding of probe chemistry reaction mechanisms. The research work is a collaboration involving Associate Professor Xiaonan WANG from Tsinghua University in China.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">The research findings are published in the journal <i>Nature Synthesis<\/i>.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">The researchers tested the CARP concept on a complicated site-selective cyclodehydrogenation reaction used for producing chemical compounds with specific structural and electronic properties. Results show that the CARP framework can efficiently adopt the expert knowledge of the scientist and convert it into machine-understandable tasks, mimicking the workflow to perform single-molecule reactions that can manipulate the geometric shape and spin characteristic of the final chemical compound.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">In addition, the research team aims to harness the full potential of AI capabilities by extracting hidden insights from the database. They established a smart learning paradigm using a game theory-based approach to examine the framework&#8217;s learning outcomes. The analysis shows that CARP effectively captured important details that humans might miss, especially when it comes to making the cyclodehydrogenation reaction successful. This suggests that the CARP framework could be a valuable tool for gaining additional insights into the mechanisms of unexplored single-molecule reactions.<\/span><\/p>\n<p><span lang=\"EN-US\" style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">Prof Lu said, \u201cOur main goal is to work at the atomic level to create, study and control these quantum materials. We are striving to revolutionise the production of these materials on surfaces to enable more control over their outcomes, right down to the level of individual atoms and bonds.\u201d<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">\u201cOur goal in the near future is to extend the CARP framework further to adopt versatile on-surface probe chemistry reactions with scale and efficiency. This has the potential to transform conventional laboratory-based on-surface synthesis process towards on-chip fabrication for practical applications. Such transformation could play a pivotal role in accelerating the fundamental research of quantum materials and usher in a new era of intelligent atomic fabrication,\u201d added Prof Lu.<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\"><img fetchpriority=\"high\" decoding=\"async\" width=\"416\" height=\"234\" src=\"https:\/\/www.science.nus.edu.sg\/wp-content\/uploads\/2024\/02\/364._Lu_J_CHM_20240213_1.jpg\" alt=\"\" class=\"alignnone size-full wp-image-60283\" srcset=\"https:\/\/www.science.nus.edu.sg\/wp-content\/uploads\/2024\/02\/364._Lu_J_CHM_20240213_1.jpg 416w, https:\/\/www.science.nus.edu.sg\/wp-content\/uploads\/2024\/02\/364._Lu_J_CHM_20240213_1-300x169.jpg 300w\" sizes=\"(max-width: 416px) 100vw, 416px\" \/><\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">Figure illustrates the chemist-intuited atomic robotic probe that would allow chemists to precisely fabricate organic quantum materials at the single-molecule level. The robotic probe can conduct real-time autonomous single-molecule reactions with chemical bond selectivity, demonstrating the fabrication of quantum materials with a high level of control. [Credit: Nature Synthesis]<\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\"><strong><span lang=\"EN-GB\">\u00a0<\/span><\/strong><\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\"><strong><span lang=\"EN-GB\">Reference<\/span><\/strong><\/span><\/p>\n<p><span style=\"font-family: arial, helvetica, sans-serif; font-size: 16px;\">Jie Su; Jiali Li; Na Guo; Xinnan Peng; Jun Yin; Jiahao Wang; Pin Lyu; Zhiyao Luo; Koen Mouthaan; Jishan Wu; Chun Zhang*; Xiaonan Wang*; Jiong Lu*, \u201cIntelligent synthesis of magnetic nanographenes <i>via<\/i> chemist-intuited atomic robotic probe\u201d Nature Synthesis DOI: 10.1038\/s44160-024-00488-7 Published: 2024.<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>National University of Singapore (NUS) scientists have pioneered a new methodology of fabricating carbon-based quantum materials at the atomic scale&#8230;<\/p>\n","protected":false},"author":16,"featured_media":60280,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[123,13],"tags":[],"class_list":["post-61737","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nanotechnology","category-research-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.6 (Yoast SEO v23.6) - 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