{"id":128868,"date":"2026-09-17T05:00:55","date_gmt":"2026-09-16T20:00:55","guid":{"rendered":"https:\/\/thekoreantoday.com\/junggu\/2026\/09\/17\/le-professeur-choi-su-seok-postech-laureat-du-prix-des-scientifiques-de-coree-pour-septembre\/"},"modified":"2026-09-17T05:00:59","modified_gmt":"2026-09-16T20:00:59","slug":"le-professeur-choi-su-seok-postech-laureat-du-prix-des-scientifiques-de-coree-pour-septembre","status":"publish","type":"post","link":"https:\/\/thekoreantoday.com\/junggu\/2026\/09\/17\/le-professeur-choi-su-seok-postech-laureat-du-prix-des-scientifiques-de-coree-pour-septembre\/","title":{"rendered":"Le professeur Choi Su-seok (POSTECH) laur\u00e9at du Prix des scientifiques de Cor\u00e9e pour septembre"},"content":{"rendered":"

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Le minist\u00e8re des Sciences et des TIC (dirig\u00e9 par le vice-Premier ministre et ministre des Sciences et des TIC, Bae Kyung-hoon) et la Fondation nationale de la recherche de Cor\u00e9e (pr\u00e9sid\u00e9e par Hong Won-hwa) ont annonc\u00e9 le 2 septembre avoir d\u00e9sign\u00e9 le professeur Choi Su-seok, du d\u00e9partement de g\u00e9nie \u00e9lectrique et \u00e9lectronique de l’Universit\u00e9 des sciences et technologies de Pohang (POSTECH), comme laur\u00e9at du Prix des scientifiques de Cor\u00e9e pour le mois de septembre. Le professeur Choi a \u00e9t\u00e9 r\u00e9compens\u00e9 pour avoir d\u00e9velopp\u00e9 une technologie de ‘vrai spectre complet des couleurs’ permettant, gr\u00e2ce \u00e0 une nanostructure chirale, de cr\u00e9er et de modifier directement les couleurs et les longueurs d’onde sur l’ensemble du domaine visible, contribuant ainsi \u00e0 l’innovation des technologies d’affichage et d’opto\u00e9lectronique de nouvelle g\u00e9n\u00e9ration.<\/p>\n

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  [\ucf54\ub9ac\uc548\ud22c\ub370\uc774] Le professeur Choi Su-seok (POSTECH), laur\u00e9at du Prix des scientifiques de Cor\u00e9e pour septembre © \uc7a5\ud615\uc784 \uae30\uc790<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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Le Prix des scientifiques de Cor\u00e9e distingue chaque mois un chercheur ayant grandement contribu\u00e9 au progr\u00e8s scientifique et technologique par des r\u00e9sultats de recherche originaux obtenus au cours des trois derni\u00e8res ann\u00e9es ; il s’accompagne d’un prix d\u00e9cern\u00e9 par le vice-Premier ministre charg\u00e9 des Sciences et des TIC et d’une r\u00e9compense de 10 millions de wons. Afin de renforcer le prestige de cette distinction destin\u00e9e aux scientifiques d’excellence, le minist\u00e8re a rehauss\u00e9, \u00e0 partir de 2026, l’ancienne appellation ‘Scientifique du mois’ en ‘Prix des scientifiques de Cor\u00e9e’.<\/p>\n

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Le minist\u00e8re et la Fondation ont expliqu\u00e9 avoir choisi le professeur Choi comme laur\u00e9at du mois \u00e0 l’occasion de septembre, mois o\u00f9 fut r\u00e9alis\u00e9e pour la premi\u00e8re fois au monde la transmission \u00e9lectronique d’une image (par Philo Farnsworth, le 7 septembre 1927).<\/p>\n

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Actuellement, les \u00e9crans et les capteurs d’image restituent les couleurs selon le syst\u00e8me RVB, qui combine le rouge (R), le vert (G) et le bleu (B). Cette m\u00e9thode pr\u00e9sente toutefois des limites : sa structure est complexe et il est difficile de reproduire directement ou de faire varier de fa\u00e7on continue la diversit\u00e9 des couleurs et des longueurs d’onde de la nature.<\/p>\n

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Le professeur Choi s’est inspir\u00e9 des papillons et des cam\u00e9l\u00e9ons, qui produisent des couleurs structurelles vari\u00e9es en formant eux-m\u00eames des nanostructures, sans pigment. Sans recourir \u00e0 des proc\u00e9d\u00e9s nanotechnologiques complexes, il a cr\u00e9\u00e9 des nanostructures chirales formant une structure optique p\u00e9riodique par auto-assemblage, les mol\u00e9cules s’agen\u00e7ant spontan\u00e9ment en h\u00e9lice, et a mis au point une technologie g\u00e9n\u00e9rant et contr\u00f4lant directement la couleur et la longueur d’onde souhait\u00e9es en ajustant la p\u00e9riode de rotation de l’h\u00e9lice. La chiralit\u00e9 d\u00e9signe une propri\u00e9t\u00e9 structurelle o\u00f9 deux formes sont l’image l’une de l’autre dans un miroir \u2014 comme la main gauche et la main droite \u2014 sans jamais se superposer parfaitement.<\/p>\n

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Cette technologie s’est d\u00e9ploy\u00e9e dans plusieurs directions. En introduisant une technologie de composants opto\u00e9lectroniques extensibles, le professeur Choi a r\u00e9alis\u00e9 une peau \u00e9lectronique artificielle (Photonic E-Skin) dont la couleur change selon la direction et le degr\u00e9 d’\u00e9tirement. Il ne s’agit plus simplement d’un mat\u00e9riau qui change de couleur, mais d’une technologie capable de lire et d’analyser directement la d\u00e9formation \u00e0 travers la couleur. Il a \u00e9galement d\u00e9velopp\u00e9 un filtre de couleur ajustable \u00e0 basse tension (2V), qui restitue s\u00e9lectivement la couleur voulue en r\u00e9glant \u00e9lectriquement la p\u00e9riode de la nanostructure, ainsi qu’un laser \u00e0 longueur d’onde variable (Color Tunable LASER) capable de modifier les couleurs du domaine visible. Ce laser peut produire des couleurs pures et intenses m\u00eame avec une largeur de raie \u00e9troite de l’ordre du nanom\u00e8tre, ce qui lui conf\u00e8re un avantage sur l’OLED (diode \u00e9lectroluminescente organique) ou les QD (points quantiques), non seulement pour les \u00e9crans mais aussi pour les technologies optiques de nouvelle g\u00e9n\u00e9ration telles que la r\u00e9alit\u00e9 augment\u00e9e (RA) et l’holographie.<\/p>\n

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Ces travaux ont \u00e9t\u00e9 retenus comme articles de couverture des revues scientifiques internationales Advanced Materials, Advanced Optical Materials et Laser & Photonics Reviews, respectivement en ao\u00fbt 2023 et en mars 2026.<\/p>\n

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Les recherches du professeur Choi puisent leurs racines dans son exp\u00e9rience du terrain industriel. Durant ses 19 ann\u00e9es pass\u00e9es chez LG Display, il a constat\u00e9 sur le terrain la complexit\u00e9 des proc\u00e9d\u00e9s, les pertes optiques et les limites de puret\u00e9 des couleurs propres au m\u00e9lange RVB ; apr\u00e8s son arriv\u00e9e \u00e0 POSTECH en 2019, il a \u00e9largi son champ de recherche, \u00e0 partir de cette compr\u00e9hension, vers les \u00e9crans de nouvelle g\u00e9n\u00e9ration fond\u00e9s sur les nanostructures chirales. Il d\u00e9tient \u00e0 ce jour quelque 250 brevets en Cor\u00e9e et \u00e0 l’\u00e9tranger et \u00e9tend r\u00e9cemment ses recherches aux capteurs d’image, aux semi-conducteurs optiques, \u00e0 la peau \u00e9lectronique portable et au chiffrement optique, notamment en d\u00e9veloppant une technologie de contr\u00f4le multipixel et multicolore exploitant la couleur, le motif, la polarisation et la d\u00e9formation de la lumi\u00e8re.<\/p>\n

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Le professeur Choi a livr\u00e9 ses impressions : ‘Ces travaux rev\u00eatent une signification profonde, car ils ont permis de d\u00e9velopper une nanostructure chirale capable de g\u00e9n\u00e9rer et de convertir les couleurs et les longueurs d’onde sur tout le domaine visible, d\u00e9passant ainsi les limites du m\u00e9lange RVB’, ajoutant : ‘Je poursuivrai \u00e0 l’avenir des recherches ambitieuses dans divers domaines de l’opto\u00e9lectronique, tels que les \u00e9crans de nouvelle g\u00e9n\u00e9ration, les semi-conducteurs optiques, la RA et l’holographie.’<\/p>\n

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L’affichage est une industrie embl\u00e9matique dans laquelle la Cor\u00e9e jouit d’une comp\u00e9titivit\u00e9 mondiale. Contr\u00f4lant directement la lumi\u00e8re et la couleur \u00e0 l’\u00e9chelle nanom\u00e9trique, cette technologie devrait offrir un nouveau tremplin \u00e0 une industrie de l’affichage entr\u00e9e dans sa phase de maturit\u00e9 et se traduire par une technologie de rupture assurant une avance d\u00e9cisive dans de nouveaux secteurs comme celui des semi-conducteurs optiques. Le minist\u00e8re des Sciences et des TIC a fait savoir qu’il entendait b\u00e2tir un \u00e9cosyst\u00e8me de recherche permettant aux scientifiques de se consacrer \u00e0 l’\u00e9tude de technologies de rupture susceptibles de transformer la vie de l’humanit\u00e9, et renforcer la reconnaissance et les \u00e9gards accord\u00e9s aux chercheurs aux r\u00e9sultats remarquables.<\/p>\n

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\uc9c0\uc5ed \ud64d\ubcf4\ub300\uc0ac \uc2e0\uccad<\/a> <\/span> \uae30\uc790\uc591\uc131\uacfc\uc815 \uc2e0\uccad<\/a> <\/span> \ucf54\ub9ac\uc548\ud22c\ub370\uc774 \uc9c0\ubd80\uc7a5 \uc2e0\uccad<\/a> <\/span> \ucf54\ub9ac\uc548\ud22c\ub370\uc774 \uc778\ucc9c\uac15\ud654\ucf54\ub9ac\uc548\ube0c\ub79c\ub4dc\ub300\uc0c1 \uc2e0\uccad<\/a> \ucd5c\uace0\uacbd\uc601\uc778\ub300\uc0c1 \uc2e0\uccad<\/a> \uc18c\ube44\uc790\ub9cc\uc871\ub3c4\ub300\uc0c1 \uc2e0\uccad<\/a> <\/p>\n

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  Le minist\u00e8re des Sciences et des TIC (dirig\u00e9 par le vice-Premier ministre et ministre des Sciences et des TIC, Bae Kyung-hoon) et la Fondation … Read more<\/a><\/p>\n","protected":false},"author":10,"featured_media":-999999,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/www.thekorean.today\/imgdata\/smilestory_kr\/202609\/2026090343101922.png","fifu_image_alt":"","footnotes":""},"categories":[29],"tags":[260],"class_list":["post-128868","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technologys","tag-260","resize-featured-image"],"yoast_head":"\nLe professeur Choi Su-seok (POSTECH) laur\u00e9at du Prix de... - \ucf54\ub9ac\uc548\ud22c\ub370\uc774<\/title>\n<meta name=\"description\" content=\"Le minist\u00e8re des Sciences et des TIC (dirig\u00e9 par le vice-Premier ministre et ministre des Sciences et des TIC, Bae Kyung-hoon) et la Fondation 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