MoO(3) as combined hole injection layer and tapered spacer in combinatorial multicolor microcavity organic light emitting diodes

TitleMoO(3) as combined hole injection layer and tapered spacer in combinatorial multicolor microcavity organic light emitting diodes
Publication TypeJournal Article
Year of Publication2011
AuthorsLiu R, Xu C, Biswas R, Shinar J, Shinar R
Journal TitleApplied Physics Letters
Volume99
Pages093305
Date Published08
Type of ArticleArticle
ISBN Number0003-6951
Accession NumberWOS:000294489300069
Keywordselectroluminescent device, films
Abstract

Multicolor microcavity (mu C) organic light-emitting diode (OLED) arrays were fabricated simply by controlling the hole injection and spacer MoO(3) layer thickness. The normal emission was tunable from similar to 490 to 640 nm and can be further expanded. A compact, integrated spectrometer with two-dimensional combinatorial arrays of mu C OLEDs was realized. The MoO(3) yields more efficient and stable devices, revealing a new breakdown mechanism. The pixel current density reaches similar to 4 A/cm(2) and a maximal normal brightness similar to 140 000 Cd/m(2), which improves photoluminescence-based sensing and absorption measurements. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3623482]

DOI10.1063/1.3623482
Alternate JournalAppl. Phys. Lett.