Enhanced Performance in Fluorene‐Free Organometal Halide Perovskite Light‐Emitting Diodes using Tunable, Low Electron Affinity Oxide Electron Injectors. (9th January 2015)

• Record Type: Journal Article
• Authors: Hoye, Robert L. Z.; Chua, Matthew R.; Musselman, Kevin P.; Li, Guangru; Lai, May‐Ling; Tan, Zhi‐Kuang; Greenham, Neil C.; MacManus‐Driscoll, Judith L.; Friend, Richard H.; Credgington, Dan
• Is Part Of: Advanced materials. Volume 27:Number 8(2015)
• Page Start: 1414
• Page End: 1419
• Publication Date: 2015-01-09
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201405044
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201405044-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Fluorene‐free perovskite light‐emitting diodes</bold> (LEDs) with low turn‐on voltages, higher luminance and sharp, color‐pure electroluminescence are obtained by replacing the F8 electron injector with ZnO, which is directly deposited onto the CH₃NH₃PbBr₃ perovskite using spatial atmospheric atomic layer deposition. The electron injection barrier can also be reduced by decreasing the ZnO electron affinity through Mg incorporation, leading to lower turn‐on voltages. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgh3xbsx2jx" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>