Home > information > イベント > 2025 > 【開催案内】第１９９回 有機エレクトロニクス研究センター講演会開催について（ご案内）
| 2025.02.21 | 【開催案内】第１９９回 有機エレクトロニクス研究センター講演会開催について（ご案内） |
標記講演会について下記の通り開催致します。
記 場 所： 11号館5階 503会議室
講 師： チューリッヒ工科大学 Dr. Chih-Jen Shih（施 智仁先生）
演 題：OLED Miniaturization: Beyond the Diffraction Limit
講演概要：Miniaturization of light-emitting diodes (LEDs) can enable high-resolution lens-free microscopy and on-chip light sources for ultra-broadband chiplet communication. However, unlike silicon scaling in electronic integrated circuits, patterning of inorganic III-V semiconductors in micro-LEDs (µLEDs) considerably compromises device efficacies at submicrometer scales. In this talk, I will present scalable fabrication of nanoscale organic LEDs (nano-OLEDs), with the highest array density (>100,000 pixels per inch) and the smallest pixel size (~100 nm) ever reported to date. Direct nanomolecular patterning of organic semiconductors is realized by self-aligned evaporation and reactive-ion etching through nanoapertures drilled on a flexible silicon nitride membrane adhering to the substrate. The average external quantum efficiencies (EQEs) extracted from nano-OLED arrays of more than 4 megapixels reach up to 10%. At the subwavelength scale, individual nano-OLED pixels act as electroluminescent meta-atoms forming metasurfaces that directly convert electricity to modulated light. Diffractive coupling of the incoherent nano-pixels enables control over the far-field emission properties, including directionality and polarization. The results presented here lay the foundation for bright surface light sources of dimension smaller than the Abbe diffraction limit, offering new technological platforms for super-resolution imaging, spectroscopy, sensing, and hybrid integrated photonics.
本件に関する問い合わせ先： 城戸オフィス（内線3052）
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