ICCAS OpenIR
Bilayer electroluminescent devices of Langmuir-Blodgett films of amphiphilic complex derivated from 8-hydroxyquinoline lanthanum
Ouyang, JM; Lin, WH; Huang, CH; Zhang, LD; Li, YH; Yang, CH
2001-11-01
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume22Issue:11Pages:1781-1784
AbstractOrganic electroluminescent (EL) devices with a bilayer structure (ITO/LB film/PBD/Al) were fabricated with an Langmuir-Blodgett (LB) film of amphiphilic complex bis[N-hexadecyl-8-hydroxy-2-quinolene carboxamide] lanthanum[La(HQ)(2)Cl] as the emitting material. Excellent performance of the EL devices originates from the insertion of an electron transport layer between the electrode and the emitting layer. Greenish-yellow EL emission with a luminance of about 1 219 cd/m(2) was observed with a low voltage drive(7.5 V). The number of the layers of LB films and the deposited surface pressure have a strong influence on the I-V characteristics, EL intensity, as well as break-down voltage of the EL devices. When the LB films were prepared at the surface pressure of 25 mN/m, the current density crossing this kind of diodes had stronger nonlinear I-V characteristics and the organic EL device had a higher EL intensity than another device prepared at lower surface pressure (5 and 15 mN/m). At a lower surface pressure, there may be some point defects or pinholes in the LB film, in which the high tunnel current would increase exponentially with the field, leading to an increase in the current density crossing the EL device and a decrease in the recombination probability of electrons and holes at a higher voltage.
KeywordElectroluminescent Device Langmuir-blodgett Film Bilayer Devices
Indexed BySCI
Language英语
WOS IDWOS:000172272100001
PublisherHIGHER EDUCATION PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/77964
Collection中国科学院化学研究所
Corresponding AuthorOuyang, JM
Affiliation1.Jinan Univ, Dept Chem, Guangzhou 510632, Peoples R China
2.Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
3.Guangzhou Post & Telecom Equipment Ltd, Guangzhou 510630, Peoples R China
4.Chinese Acad Sci, Inst Chem, Lab Organ Solids, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Ouyang, JM,Lin, WH,Huang, CH,et al. Bilayer electroluminescent devices of Langmuir-Blodgett films of amphiphilic complex derivated from 8-hydroxyquinoline lanthanum[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2001,22(11):1781-1784.
APA Ouyang, JM,Lin, WH,Huang, CH,Zhang, LD,Li, YH,&Yang, CH.(2001).Bilayer electroluminescent devices of Langmuir-Blodgett films of amphiphilic complex derivated from 8-hydroxyquinoline lanthanum.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,22(11),1781-1784.
MLA Ouyang, JM,et al."Bilayer electroluminescent devices of Langmuir-Blodgett films of amphiphilic complex derivated from 8-hydroxyquinoline lanthanum".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 22.11(2001):1781-1784.
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