Temperature Dependence of Exciton Diffusion in a Small‐Molecule Organic Semiconductor Processed With and Without Additive. (16th March 2015)

• Record Type: Journal Article
• Authors: Lin, Jason D. A.; Mikhnenko, Oleksandr V.; van der Poll, Thomas S.; Bazan, Guillermo C.; Nguyen, Thuc‐Quyen
• Is Part Of: Advanced materials. Volume 27:Number 15(2015)
• Page Start: 2528
• Page End: 2532
• Publication Date: 2015-03-16
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.201404590
• Languages: English
• ISSNs: 0935-9648

Abstract

<abstract abstract-type="graphical" xml:lang="en" id="adma201404590-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>The temperature dependence</bold> of exciton diffusion in a small‐molecule organic semiconductor processed with and without additive is investigated. As‐cast and 1, 8‐diiodooctane‐processed films yield exciton diffusion lengths of 6.8 and 4.9 nm, respectively. Using a Monte Carlo simulation, it is shown that processing with 1, 8‐diiodooctane increases the excitonic trap density, which directly reduces the exciton diffusion length. <boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgjhx62tb5" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>