{"id":472895,"date":"2022-07-11T18:43:02","date_gmt":"2022-07-11T15:43:02","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/uv-micro-leds-for-sensing-production-and-communication\/"},"modified":"2022-07-11T18:43:02","modified_gmt":"2022-07-11T15:43:02","slug":"uv-micro-leds-for-sensing-production-and-communication","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/uv-micro-leds-for-sensing-production-and-communication\/","title":{"rendered":"#UV micro-LEDs for sensing, production and communication"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a26d7ef35144\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a26d7ef35144\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/uv-micro-leds-for-sensing-production-and-communication\/#%E2%80%9CUV_micro-LEDs_for_sensing_production_and_communication%E2%80%9D\" >&#8220;UV micro-LEDs for sensing, production and communication&#8221;<\/a><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CUV_micro-LEDs_for_sensing_production_and_communication%E2%80%9D\"><\/span>&#8220;UV micro-LEDs for sensing, production and communication&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2022\/uv-micro-leds-for-sens.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/2022\/uv-micro-leds-for-sens.jpg\" data-sub-html=\"UV-luminescent pixel array of micro-LEDs with a pixel diameter of 1.5 \u00b5m and a 2 \u00b5m pitch shaped as FBH logo (diameter 158 \u00b5m) under the microscope. Credit: FBH\">\n<figure class=\"article-img\">\n            <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2022\/uv-micro-leds-for-sens.jpg\" alt=\"UV micro-LEDs for sensing, production and communication\" title=\"UV-luminescent pixel array of micro-LEDs with a pixel diameter of 1.5 \u00b5m and a 2 \u00b5m pitch shaped as FBH logo (diameter 158 \u00b5m) under the microscope. Credit: FBH\" width=\"800\" height=\"530\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                UV-luminescent pixel array of micro-LEDs with a pixel diameter of 1.5 \u00b5m and a 2 \u00b5m pitch shaped as FBH logo (diameter 158 \u00b5m) under the microscope. Credit: FBH<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>Researchers at the Ferdinand-Braun-Institut (FBH) in Berlin have successfully produced the first prototypes of micro-LEDs that emit in the ultraviolet spectral range (UVB). The micro-LEDs with 310 nanometers (nm) emission wavelength feature a small size of the emitting area with diameters down to 1.5 micrometers (\u00b5m). This is hundreds to thousands of times smaller than conventional UV LEDs. The micro-LEDs can be closely packed with pitches down to 2 \u00b5m to form a two-dimensional array on a chip, resulting in high-resolution UVB emitting areas.<\/p>\n<p>                                                                                Used either as single emitter or arranged as a high-density array, UV micro-LEDs can be used in a wide range of <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>lications. This includes sensing <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/technology\/\" data-internallinksmanager029f6b8e52c=\"4\" title=\"Technology\" target=\"_blank\" rel=\"noopener\">technology<\/a>, curing of polymers and resins, production of semiconductor chips, and optical communication. On FBH&#8217;s current chips, all UV micro-LEDs of an array are operated simultaneously. In the next step, the LED pixels are to be individually addressed via a control chip. This will allow them to generate and quickly modulate individual illumination patterns, enabling mask-free photolithography, for example. Individual structures can thus be created on semiconductor wafers easily, quickly, and cost-effectively. <\/p>\n<p>The capability of high-resolution UV irradiation patterns also opens up new applications in the field of rapid prototyping and fluorescence analysis. In parallel, FBH scientists are already transferring this technology to UVC LEDs, including far-UVC LEDs with extremely short emission wavelengths around 230 nm. Now, the FBH is looking for partners who intend to use UV micro-LEDs in their applications, aiming to jointly advance the technology and fully exploit the potential of the devices.<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2022\/uv-micro-leds-for-sens-1.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2022\/uv-micro-leds-for-sens-1.jpg\" data-sub-html=\"Electron micrograph of an array of UV micro-LEDs with 2 \u00b5m pitch. Credit: FBH\">\n<figure class=\"article-img text-center\">\n            <img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2022\/uv-micro-leds-for-sens-1.jpg\" alt=\"UV micro-LEDs for sensing, production and communication\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                Electron micrograph of an array of UV micro-LEDs with 2 \u00b5m pitch. Credit: FBH<br \/>\n            <\/figcaption><\/figure>\n<\/p><\/div>\n<\/div>\n<p>Semiconductor layer structures emitting in the ultraviolet spectral range were deposited by means of metal organic vapor phase epitaxy and then patterned using lithographic processes, plasma etching, and deposition methods. Fabricating UV micro-LEDs with small diameters in the range between 1.5 and 50 \u00b5m and with a pitch between 2 and 60 \u00b5m required a high alignment accuracy, manufacturing precision, and material perfection. <\/p>\n<p>This could only be met by using state-of-the-art lithographic processes that were specially designed for this application. Precise alignment of the different process layers to each other (overlay control) with an accuracy of better than 20 nm over the 2&#8243; LED wafer was needed. Due to the small dimensions of the fabricated UV micro-LEDs\u2014such as diameter, shape, and slope angle of the etched structures\u2014their properties were controlled by means of electron microscopy.\n                                                                                                                        <\/p>\n<hr\/>\n<div class=\"article-main__explore my-4 d-print-none\">\n<p>                                            <a rel=\"nofollow noopener\" target=\"_blank\" class=\"text-medium text-info mt-2 d-inline-block\" href=\"https:\/\/phys.org\/news\/2022-05-size-effect-algainp-red-micro-leds.html\">Size effect of AlGaInP red micro-LEDs on silicon substrate<\/a>\n                                        <\/div>\n<hr class=\"mb-4\"\/>\n<p>                                                Provided by<br \/>\n                                                                                                    Ferdinand-Braun-Institut<\/p>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>                                                 <strong>Citation<\/strong>:<br \/>\n                                                 UV micro-LEDs for sensing, production and communication (2022, July 11)<br \/>\n                                                 retrieved 11 July 2022<br \/>\n                                                 from https:\/\/techxplore.com\/<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>\/2022-07-uv-micro-leds-production.html<\/p>\n<p>                                            This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no<br \/>\n                                            part may be reproduced without the written permission. The content is provided for information purposes only.<\/p><\/div>\n<\/p><\/div>\n<p><script id=\"facebook-jssdk\" async=\"\" src=\"https:\/\/connect.facebook.net\/en_US\/sdk.js\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong>\n<\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more Like this articles, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/science\/\" target=\"_blank\" rel=\"noopener\">Science category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/techxplore.com\/news\/2022-07-uv-micro-leds-production.html\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;UV micro-LEDs for sensing, production and communication&#8221; UV-luminescent pixel array of micro-LEDs with a pixel diameter of 1.5 \u00b5m and a 2 \u00b5m pitch shaped as FBH logo (diameter 158 \u00b5m) under the microscope. Credit: FBH Researchers at the Ferdinand-Braun-Institut (FBH) in Berlin have successfully produced the first prototypes of micro-LEDs that emit in the&#8230;<\/p>\n","protected":false},"author":1,"featured_media":472896,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/2022\/uv-micro-leds-for-sens.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-472895","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/472895","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=472895"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/472895\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/472896"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=472895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=472895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=472895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}