Transparent Organic Upconversion Devices for Near‐Infrared Sensing. (12th December 2014)

• Record Type: Journal Article
• Authors: Liu, Shun‐Wei; Lee, Chih‐Chien; Yuan, Chih‐Hsien; Su, Wei‐Cheng; Lin, Shao‐Yu; Chang, Wen‐Chang; Huang, Bo‐Yao; Lin, Chun‐Feng; Lee, Ya‐Ze; Su, Tsung‐Hao; Chen, Kuan‐Ting
• Is Part Of: Advanced materials. Volume 27:Number 7(2015)
• Page Start: 1217
• Page End: 1222
• Publication Date: 2014-12-12
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201404355
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201404355-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Transparent organic upconversion devices</bold> are shown in a night‐vision demonstration of a real object under near‐infrared (NIR) illumination in the dark. An extraordinarily high current gain – reflecting the on–off switching effect – greater than 15 000 at a driving voltage of 3 V is demonstrated, indicating the high sensitivity to NIR light and potential of using the proposed upconverter in practical applications. A maximum luminance exceeding 1500 cd m⁻² at 7 V is achieved. Unlike previous studies, where 2D aperture projection is reported, the current study shows 3D images of real objects under NIR illumination in the dark. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgh3w99kck7" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>