Title:
ITO-free large-area organic light-emitting diodes with an integrated metal grid
ITO-free large-area organic light-emitting diodes with an integrated metal grid
| dc.contributor.author | Choi, Seungkeun | en_US |
| dc.contributor.author | Kim, Sung-Jin | en_US |
| dc.contributor.author | Fuentes-Hernandez, Canek | en_US |
| dc.contributor.author | Kippelen, Bernard | en_US |
| dc.contributor.corporatename | Georgia Institute of Technology. Center for Organic Photonics and Electronics | en_US |
| dc.contributor.corporatename | Georgia Institute of Technology. School of Electrical and Computer Engineering | en_US |
| dc.date.accessioned | 2012-12-14T17:52:33Z | |
| dc.date.available | 2012-12-14T17:52:33Z | |
| dc.date.issued | 2011-07 | |
| dc.description | © 2011 Optical Society of America | en_US |
| dc.description | The definitive version of this paper is available at: http://dx.doi.org/10.1364/OE.19.00A793 | en_US |
| dc.description | DOI: 10.1364/OE.19.00A793 | en_US |
| dc.description.abstract | We report on ITO-free large-area organic light-emitting diodes (OLEDs) fabricated on glass substrates comprising α-NPD as a hole transport layer (HTL) and coevaporated CBP:Ir(ppy)3 as the emission layer. Indium-tin-oxide (ITO) was replaced with a conductive polymer electrode and an electroplated thick metal grid was used to improve the homogeneity of the potential distribution over the transparent polymer electrode. An electrical model of a metal grid integrated OLED shows the benefits of the use of metal grids in terms of improving the uniformity of the light emitted as the area of the OLED increases as well as the conductivity of the transparent electrode decreases. By integrating metal grids with polymer electrodes, the luminance increases more than 24% at 6 V and 45% at 7 V compared to the polymer electrode devices without a metal grid. This implies that a lower voltage can be applied to achieve the same luminance, hence lowering the power consumption. Furthermore, metal grid integrated OLEDs exhibited less variation in light emission compared to devices without a metal grid. | en_US |
| dc.identifier.citation | Choi, Seungkeun and Kim, Sung-Jin and Fuentes-Hernandez, Canek and Kippelen, Bernard, "ITO-free large-area organic light-emitting diodes with an integrated metal grid," Optics Express, 19, 14, A793-A803 (July 4 2011) | en_US |
| dc.identifier.doi | 10.1364/OE.19.00A793 | |
| dc.identifier.issn | 1094-4087 | |
| dc.identifier.uri | http://hdl.handle.net/1853/45565 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | Georgia Institute of Technology | en_US |
| dc.publisher.original | Optical Society of America | en_US |
| dc.subject | Light-emitting diodes | en_US |
| dc.subject | Optoelectronics | en_US |
| dc.subject | Light-emitting polymers | en_US |
| dc.subject | Physical optics | en_US |
| dc.subject | Luminescence | en_US |
| dc.subject | Thin films | en_US |
| dc.subject | Thin film devices and applications | en_US |
| dc.subject | Transparent conductive coatings | en_US |
| dc.title | ITO-free large-area organic light-emitting diodes with an integrated metal grid | en_US |
| dc.type | Text | |
| dc.type.genre | Article | |
| dspace.entity.type | Publication | |
| local.contributor.author | Kippelen, Bernard | |
| local.contributor.corporatename | Center for Organic Photonics and Electronics | |
| relation.isAuthorOfPublication | 89dff3fa-f69f-48dc-a1b2-89e73be81537 | |
| relation.isOrgUnitOfPublication | 43f8dc5f-0678-4f07-b44a-edbf587c338f |
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