
{"id":2267,"date":"2019-01-29T14:45:09","date_gmt":"2019-01-29T14:45:09","guid":{"rendered":"https:\/\/www.editage.com\/insights\/synthesizing-crystalline-films-that-neatly-arrange-themselves\/"},"modified":"2025-04-05T12:42:15","modified_gmt":"2025-04-05T12:42:15","slug":"synthesizing-crystalline-films-that-neatly-arrange-themselves","status":"publish","type":"post","link":"https:\/\/www.editage.com\/insights\/synthesizing-crystalline-films-that-neatly-arrange-themselves","title":{"rendered":"Synthesizing crystalline films that neatly arrange themselves"},"content":{"rendered":"<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"text-justify: inter-ideograph;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-family: 'Calibri','sans-serif';\">Crystalline structures are ideally composed of repeating identical units in a perfectly ordered fashion. As one would expect, crystals have found applications in a multitude of fields, such as optics, electronics, and chemistry, and have helped researchers understand the mechanics behind complex physical phenomena. However, synthesizing perfect crystalline structures is very challenging, with most methods yielding crystals with defects or with multiple different basic units (called polycrystals).<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"text-justify: inter-ideograph;\"><span style=\"font-family: 'Times New Roman',serif;\">\u00a0<\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"text-justify: inter-ideograph;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-family: 'Calibri','sans-serif';\">Hexagonal boron nitride (hBN), also called white graphite, can be synthesized in the shape of crystalline films with the width of a single atom. They have an insulating effect that has found uses in various types of scientific research. However, these films are polycrystalline and not single-crystalline. Therefore, a research team set out to find a method for synthesizing single-crystalline hBN films on a small scale.<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"text-justify: inter-ideograph;\"><span style=\"font-family: 'Times New Roman',serif;\">\u00a0<\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"text-justify: inter-ideograph;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-family: 'Calibri','sans-serif';\">The synthesis method they developed consists of letting the thin hBN film self-assemble on top of a liquid gold substrate. Because of the surface tension of liquid gold and the characteristics of its interaction with boron and nitrogen, circular hBN grains form automatically over time. These grains grow to a specific diameter and eventually form a lattice. They can easily rotate when they are about to come into contact with another grain so as to assume the best possible orientation before joining the lattice. A <\/span><span style=\"font-family: 'Calibri','sans-serif';\"><a href=\"https:\/\/www.youtube.com\/watch?v=NI1ZhI0Qml8&amp;feature=youtu.be\">video<\/a> for this is available too.\u00a0<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><img decoding=\"async\" class=\"media-element file-default\" title=\"Default Title Text\" src=\"http:\/\/insights.cactusglobal.com\/sites\/default\/files\/rrr.PNG\" alt=\"Default Alt text\" \/><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"text-justify: inter-ideograph;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-family: 'Calibri','sans-serif';\">The final product of this process is a nearly perfect single-crystalline hBN film, as the team demonstrated in many different experiments and via multiple measurements. A very promising application of such films is using them as a substrate for synthesizing other crystalline thin-film materials on top of them, such as graphene. Their applications go beyond that, as Prof. Kim explains, \u201cWe demonstrated that our hBN films can serve as a protecting layer against metal oxidation and as a gas-diffusion barrier for water vapor transmission.\u201d<\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"text-justify: inter-ideograph;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-family: 'Calibri','sans-serif';\">This innovative synthesis method could be exploited further as well. \u201cOur strategy for the synthesis of single-crystalline hBN films opens a new horizon for the single-crystal growth of other <\/span><span style=\"font-family: 'Calibri','sans-serif';\">diatomic <\/span><span style=\"font-family: 'Calibri','sans-serif';\">2D materials,\u201d explains Prof. Kim. This would make many single-crystalline materials easier to fabricate, allowing them to naturally find a multitude of applications. <\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><b><span style=\"font-family: 'Calibri','sans-serif';\">Reference<\/span><\/b><\/span><\/span><\/p>\n<table class=\"Table\" style=\"border-collapse: collapse; border: undefined;\">\n<tbody>\n<tr>\n<td style=\"width: 85.05pt; padding: 0in 0in 0in 0in;\" valign=\"top\" width=\"113\">\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Authors:<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"width: 382.95pt; padding: 0in 0in 0in 0in;\" valign=\"top\" width=\"511\">\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Joo Song Lee<sup>1,2<\/sup>, Soo Ho Choi<sup>3<\/sup>, Seok Joon Yun<sup>4<\/sup>, Yong In Kim<sup>5<\/sup>, Stephen Boandoh<sup>6<\/sup>, Ji-Hoon Park<sup>4,5<\/sup>, Bong Gyu Shin<sup>4,7,8<\/sup>, Hayoung Ko<sup>1,5<\/sup>, Seung Hee Lee<sup>2<\/sup>, Young-Min Kim<sup>4,5<\/sup>, Young Hee Lee<sup>4,5<\/sup>*, Ki Kang Kim<sup>6<\/sup>*, Soo Min Kim<sup>1<\/sup>*<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 85.05pt; padding: 0in 0in 0in 0in;\" valign=\"top\" width=\"113\">\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Title of original paper:<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"width: 382.95pt; padding: 0in 0in 0in 0in;\" valign=\"top\" width=\"511\">\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Wafer-scale single-crystal hexagonal boron nitride film via self-collimated grain formation<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 85.05pt; padding: 0in 0in 0in 0in;\" valign=\"top\" width=\"113\">\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Journal:<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"width: 382.95pt; padding: 0in 0in 0in 0in;\" valign=\"top\" width=\"511\">\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><i><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Science<\/span><\/span><\/i><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 85.05pt; padding: 0in 0in 0in 0in;\" valign=\"top\" width=\"113\">\n<p class=\"MsoCommentText\" style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 10pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">DOI:<\/span><\/span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/span><\/p>\n<\/td>\n<td style=\"width: 382.95pt; padding: 0in 0in 0in 0in;\" valign=\"top\" width=\"511\">\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">10.1126\/science.aau2132<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr style=\"height: .45in;\">\n<td style=\"width: 85.05pt; padding: 0in 0in 0in 0in; height: .45in;\" valign=\"top\" width=\"113\">\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Affiliations:<\/span><\/span><\/span><\/span><\/p>\n<\/td>\n<td style=\"width: 382.95pt; padding: 0in 0in 0in 0in; height: .45in;\" valign=\"top\" width=\"511\">\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">1<\/span><\/span><\/sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST)<\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">2<\/span><\/span><\/sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Applied Materials Institute for BIN Convergence, Department of BIN Fusion Technology and Department of Polymer-Nano Science and Technology, Chonbuk National University<\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">3<\/span><\/span><\/sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Department of Physics, Dongguk University-Seoul<\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">4<\/span><\/span><\/sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS)<\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">5<\/span><\/span><\/sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Department of Energy Science, Sungkyunkwan University<\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">6<\/span><\/span><\/sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Department of Energy and Materials Engineering, Dongguk University-Seoul<\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">7<\/span><\/span><\/sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Center for Quantum Nanoscience (QNS), Institute for Basic Science (IBS), Ewha Womans University<\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\"><sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">8<\/span><\/span><\/sup><span style=\"font-size: 11.0pt;\"><span style=\"font-family: 'Calibri','sans-serif';\">Department of Physics, Sungkyunkwan University<\/span><\/span><\/span><\/span><\/p>\n<p style=\"margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Times New Roman',serif;\">\u00a0<\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\">The original article can be found <a href=\"http:\/\/www.dongguk.edu\/mbs\/en\/jsp\/board\/view.jsp?spage=1&amp;boardId=63820&amp;boardSeq=26670188&amp;id=en_050200000000&amp;column=&amp;search=\">here<\/a>.<\/p>\n<p><span style=\"font-size: 12pt;\"><span style=\"font-family: Calibri,sans-serif;\"><span style=\"color: black;\"><b>About <\/b><b>Dongguk University<\/b><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"text-justify: inter-ideograph;\"><span style=\"text-autospace: none;\"><span style=\"font-family: 'Times New Roman',serif;\"><span lang=\"EN-IN\" style=\"font-family: 'Calibri','sans-serif';\" xml:lang=\"EN-IN\"><a href=\"http:\/\/www.dongguk.edu\/mbs\/en\/index.jsp\">Dongguk University<\/a>, founded in 1906, is located in Seoul, South Korea. It comprises 13 colleges that cover a variety of disciplines and has local campuses in Gyeongju, Goyang, and Los Angeles. The university has 1,300 professors who conduct independent research and 18,000 students undertaking studies in a variety of disciplines. Interaction between disciplines is one of the strengths on which Dongguk prides itself; the university encourages researchers to work across disciplines in Information Technology, Bio Technology, Culture Technologys, and Buddhism.<\/span> <\/span><\/span><\/span><\/span><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><strong>About the author<\/strong><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><a href=\"\/files\/rrajpg\"><img decoding=\"async\" class=\"media-element file-teaser\" title=\"Default Title Text\" src=\"http:\/\/insights.cactusglobal.com\/sites\/default\/files\/styles\/medium\/public\/rra.jpg?itok=u5S_TyE_\" alt=\"Default Alt text\" \/><\/a><\/p>\n<p style=\"text-align: justify; margin: 0in 0in 0.0001pt;\"><span style=\"font-size: 12pt;\"><span style=\"text-justify: inter-ideograph;\"><span style=\"font-family: 'Times New Roman',serif;\"><span lang=\"EN-IN\" style=\"font-family: 'Calibri','sans-serif';\" xml:lang=\"EN-IN\">Dr. Ki Kang Kim received his M.S. and Ph.D. from the Department of Physics of Sungkyunkwan University, Republic of Korea, in 2008 under the supervision of Prof. Young Hee Lee. After completing his postdoctoral studies under the supervision of Prof. Jing Kong at Massachusetts Institute of Technology, USA, he joined the Department of Energy and Materials Engineering at Dongguk University in Republic of Korea in 2012 as an assistant professor. His current research interests include the synthesis of 2D materials and engineering the electronic structure of low-dimensional materials. <\/span><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Crystalline structures are ideally composed of repeating identical units in a perfectly ordered fashion. As one would expect, crystals have found applications in a multitude of fields, such as optics, electronics, and chemistry, and have helped researchers understand the mechanics behind complex physical phenomena. However, synthesizing perfect crystalline structures is very challenging, with most methods [&hellip;]<\/p>\n","protected":false},"author":1152,"featured_media":33313,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[2435],"tags":[2482],"new_categories":[],"new_tags":[],"series":[],"class_list":["post-2267","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trending-research","tag-science-update"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Synthesizing crystalline films that neatly arrange themselves | Editage Insights<\/title>\n<meta name=\"description\" content=\"Scientists at Dongguk University (Prof. Ki Kang Kim) in collaboration with scientists from other institutes (KIST (Dr. Soo Mim Kim), Sungkyunkwan University (Prof. Young Hee Lee) found a method for synthesizing hexagonal boron nitride films with a nearly perfect single-crystalline structure. This structure consistently self-assembles on top of liquid gold and can be used as a platform for synthesizing other crystalline thin-film materials.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.editage.com\/insights\/synthesizing-crystalline-films-that-neatly-arrange-themselves\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Synthesizing crystalline films that neatly arrange themselves | Editage Insights\" \/>\n<meta property=\"og:description\" content=\"Scientists at Dongguk University (Prof. Ki Kang Kim) in collaboration with scientists from other institutes (KIST (Dr. Soo Mim Kim), Sungkyunkwan University (Prof. Young Hee Lee) found a method for synthesizing hexagonal boron nitride films with a nearly perfect single-crystalline structure. 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