CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
Simple and High Efficiency Phosphorescence Organic Light-Emitting Diodes with Codeposited Copper(I) Emitter
Liu, ZW; Qiu, J; Wei, F; Wang, JQ; Liu, XC; Helander, MG; Rodney, S; Wang, ZB; Bian, ZQ; Lu, ZH; Thompson, ME; Huang, CH; zhibin.wang@utoronto.ca; bianzq@pku.edu.cn; met@usc.edu
2014
Source PublicationCHEMISTRY OF MATERIALS
ISSN0897-4756
Volume26Issue:7Pages:2368—2373
AbstractPhosphorescent copper(I) complexes show great promise as emitters in organic light-emitting diodes (OLEDs). However, most copper(I) complexes are neither soluble nor stable toward sublimation and, hence, not amenable to the typical methods to fabricate OLEDs. In this work, a compound 3-(carbazol-9-yl)-5-((3-carbazol-9-yl)phenyl)pyridine (CPPyC) was designed as both a good ligand and host matrix. Codeposition of CPPyC and copper iodide (Cul) gives luminescent films with photoluminescent quantum yields (PLQY) as high as 100%. A dimeric copper(1) complex Cu2I2(CPPyC)(4) is formed in the thin film, characterized by X-ray absorption spectroscopy. A series of simple, highly efficient green-emitting OLEDs were demonstrated by using the codeposited film as an emissive layer. A device comprised of only CPPyC and Cul gave an external quantum efficiency (EQE) of 12.6% (42.3 cd/A) at 100 cd/m(2), while a device with tailored hole and electron transporting layers gave an efficiency of 15.7% (51.6 cd/A) at the same brightness.
KeywordDelayed Fluorescence Triplet Excitons Complexes Luminescence Devices Electrophosphorescence Polymers Ligands Singlet Blue
Indexed BySCI
Language英语
WOS IDWOS:000334572300022
Citation statistics
Cited Times:78[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/14392
Collection中科院上海应用物理研究所2011-2019年
Corresponding Authorzhibin.wang@utoronto.ca; bianzq@pku.edu.cn; met@usc.edu
Recommended Citation
GB/T 7714
Liu, ZW,Qiu, J,Wei, F,et al. Simple and High Efficiency Phosphorescence Organic Light-Emitting Diodes with Codeposited Copper(I) Emitter[J]. CHEMISTRY OF MATERIALS,2014,26(7):2368—2373.
APA Liu, ZW.,Qiu, J.,Wei, F.,Wang, JQ.,Liu, XC.,...&met@usc.edu.(2014).Simple and High Efficiency Phosphorescence Organic Light-Emitting Diodes with Codeposited Copper(I) Emitter.CHEMISTRY OF MATERIALS,26(7),2368—2373.
MLA Liu, ZW,et al."Simple and High Efficiency Phosphorescence Organic Light-Emitting Diodes with Codeposited Copper(I) Emitter".CHEMISTRY OF MATERIALS 26.7(2014):2368—2373.
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