Achieving Highly Efficient Fluorescent Blue Organic Light-Emitting Diodes Through Optimizing Molecular Structures and Device Configuration
dc.contributor.author | Zhen, Chang-Gua | en_US |
dc.contributor.author | Dai, Yan-Feng | en_US |
dc.contributor.author | Zeng, Wen-Jin | en_US |
dc.contributor.author | Ma, Zhun | en_US |
dc.contributor.author | Chen, Zhi-Kuan | en_US |
dc.contributor.author | Kieffer, John | en_US |
dc.date.accessioned | 2011-03-10T16:03:39Z | |
dc.date.accessioned | 2011-03-10T16:03:39Z | |
dc.date.available | 2012-04-03T21:46:58Z | en_US |
dc.date.issued | 2011-02-22 | en_US |
dc.identifier.citation | Zhen, Chang-Gua; Dai, Yan-Feng; Zeng, Wen-Jin; Ma, Zhun; Chen, Zhi-Kuan; Kieffer, John (2011). "Achieving Highly Efficient Fluorescent Blue Organic Light-Emitting Diodes Through Optimizing Molecular Structures and Device Configuration." Advanced Functional Materials 21(4): 699-707. <http://hdl.handle.net/2027.42/83212> | en_US |
dc.identifier.issn | 1616-301X | en_US |
dc.identifier.issn | 1616-3028 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/83212 | |
dc.description.abstract | Based on the results of first-principles calculations of the electronic properties of blue light-emitting materials, the molecular structures of oligofluorenes are optimized by incorporating electron-withdrawing groups into the molecules to balance hole and electron injection and transport for organic light-emitting diodes (OLEDs). The result is a remarkable improvement in the maximum external quantum efficiency (EQE) of the undoped device from 2.0% to 4.99%. Further optimization of the device configurations and processing procedures, e.g., by changing the thickness of the emitting layer and through thermal annealing treatments, leads to a very high maximum EQE of 7.40% for the undoped sky-blue device. Finally, by doping the emitter in a suitable host material, 4,4’-bis(carbazol-9-yl)biphenyl (CBP), at the optimal concentration of 6%, pure blue emission with extremely high maximum EQE of 9.40% and Commission Internationale de l’Eclairage (CIE) coordinates of (0.147, 0.139) is achieved. | en_US |
dc.publisher | WILEY-VCH Verlag | en_US |
dc.subject.other | Chemistry | en_US |
dc.subject.other | Polymer and Materials Science | en_US |
dc.title | Achieving Highly Efficient Fluorescent Blue Organic Light-Emitting Diodes Through Optimizing Molecular Structures and Device Configuration | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Engineering (General) | en_US |
dc.subject.hlbsecondlevel | Materials Science and Engineering | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA | en_US |
dc.contributor.affiliationum | Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA ; Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA | en_US |
dc.contributor.affiliationother | Institute of Materials Research and Engineering, Singapore 117602E | en_US |
dc.contributor.affiliationother | Institute of Materials Research and Engineering, Singapore 117602E | en_US |
dc.contributor.affiliationother | Institute of Materials Research and Engineering, Singapore 117602E | en_US |
dc.contributor.affiliationother | Institute of Materials Research and Engineering, Singapore 117602E ; Institute of Materials Research and Engineering, Singapore 117602E. | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/83212/1/699_ftp.pdf | |
dc.identifier.doi | 10.1002/adfm.201002165 | en_US |
dc.identifier.source | Advanced Functional Materials | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.