LECs Made of m-Lppp

1997 ◽  
Vol 488 ◽  
Author(s):  
F. P. Wenzl ◽  
S. Tasch ◽  
J. Gao ◽  
L. Holzer ◽  
U. Scherf ◽  
...  
Keyword(s):  
Blue Light ◽  
Active Layer ◽  
Conjugated Polymer ◽  
Response Times ◽  
Conductive Polymer ◽  
Electrochemical Cells ◽  
Light Emitting ◽  
Turn On ◽  
Ionic Salt ◽  
Time Of Operation

AbstractWe report the application of the blue light emitting conjugated polymer m-LPPP (methyl substituted laddertype poly(paraphenylene) ) in light emitting electrochemical cells. The active layer of the LEC consists of a blend of m-LPPP with the ionically conductive polymer PEO and LiCF3SO3 as ionic salt. Investigations of different concentrations of PEO and salt showed that the best LECs made of m-LPPP up to now where realised with an active layer consisting of a blend of m-LPPP:PEO:salt in the range of 20:10:3. In this case we are able to realise LECs with response times in the range of 30 μs. The I/U characteristics show low turn on voltages both for current and electroluminescence, but only in the case of ITO biased as a cathode. The initial electroluminescence spectra are quite the same as those for LEDs made of m-LPPP but turn into green after some time of operation.

Designing NHC–Copper(I) Dipyridylamine Complexes for Blue Light-Emitting Electrochemical Cells

2016 ◽  
Vol 8 (23) ◽  
pp. 14678-14691 ◽  
Author(s):  
Margaux Elie ◽  
Fabien Sguerra ◽  
Florent Di Meo ◽  
Michael D. Weber ◽  
Ronan Marion ◽  
...  
Keyword(s):  
Blue Light ◽  
Electrochemical Cells ◽  
Light Emitting

Blue-light emitting electrochemical cells comprising pyrene-imidazole derivatives

2018 ◽  
Vol 78 ◽  
pp. 44-51 ◽  
Author(s):  
Hyeonji Lee ◽  
Chozhidakath Damodharan Sunesh ◽  
Madayanad Suresh Subeesh ◽  
Youngson Choe
Keyword(s):  
Blue Light ◽  
Electrochemical Cells ◽  
Light Emitting ◽  
Imidazole Derivatives

Partially pyridine-functionalized quantum dots for efficient red, green, and blue light-emitting diodes

2019 ◽  
Vol 7 (12) ◽  
pp. 3429-3435 ◽  
Author(s):  
Sukyung Choi ◽  
Jaehyun Moon ◽  
Hyunsu Cho ◽  
Byoung-Hwa Kwon ◽  
Nam Sung Cho ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Blue Light ◽  
Light Emitting Diodes ◽  
High Brightness ◽  
Light Emitting ◽  
Turn On ◽  
Colloidal Quantum Dot

Surface-exchanged, partially pyridine-functionalized colloidal quantum dot-based light-emitting diodes (QD-LEDs) exhibit a low turn-on voltage and high brightness.

Exploring the effect of the cyclometallating ligand in 2-(pyridine-2-yl)benzo[d]thiazole-containing iridium(iii) complexes for stable light-emitting electrochemical cells

2018 ◽  
Vol 6 (46) ◽  
pp. 12679-12688 ◽  
Author(s):  
Cristina Momblona ◽  
Cathrin D. Ertl ◽  
Antonio Pertegás ◽  
José M. Junquera-Hernández ◽  
Henk J. Bolink ◽  
...  
Keyword(s):  
Active Layer ◽  
Continuous Operation ◽  
Electrochemical Cells ◽  
Red Emission ◽  
Light Emitting

LECs with [Ir(tppy)2(btzpy)][PF6] (tppy = 2-(3-(tert-butyl)phenyl)pyridine, btzpy = 2-(pyridine-2-yl)benzo[d]thiazole) in the active layer exhibit pure red emission and are very stable over 5 days of continuous operation.

Host–guest blue light-emitting electrochemical cells

2014 ◽  
Vol 2 (9) ◽  
pp. 1605-1611 ◽  
Author(s):  
Antonio Pertegás ◽  
Nail M. Shavaleev ◽  
Daniel Tordera ◽  
Enrique Ortí ◽  
Mohammad K. Nazeeruddin ◽  
...  
Keyword(s):  
Blue Light ◽  
Organic Electronics ◽  
Electrochemical Cells ◽  
Ionic Charge ◽  
Light Emitting

Ionic charge-transporters for organic electronics.

Phenyl substitution of cationic bis-cyclometalated iridium(iii) complexes for iTMC-LEECs

2016 ◽  
Vol 45 (44) ◽  
pp. 17807-17823 ◽  
Author(s):  
Kristin J. Suhr ◽  
Lyndon D. Bastatas ◽  
Yulong Shen ◽  
Lauren A. Mitchell ◽  
Gary A. Frazier ◽  
...  
Keyword(s):  
Response Times ◽  
Single Layer ◽  
Electrochemical Cells ◽  
Iridium Complexes ◽  
Light Emitting

A series of cationic iridium complexes with bulky, hydrophobic phenyl substituents, doped with LiPF6, in single-layer light-emitting electrochemical cells display reduced response times, modest lifetimes, and high luminances.

Colloidal quantum dot active layer electroluminescence in a solid GaN matrix

2005 ◽  
Vol 891 ◽  
Author(s):  
Jennifer Pagan ◽  
Edward Stokes ◽  
Kinnari Patel ◽  
Casey Burkhart ◽  
Mike Ahrens
Keyword(s):  
Active Layer ◽  
Light Emitting Diode ◽  
Cdse Quantum Dots ◽  
Light Emitting ◽  
Force Microscopy ◽  
Turn On ◽  
Atomic Force ◽  
Transmission Line Method ◽  
Gan Led ◽  
Colloidal Quantum Dot

ABSTRACTIn this paper the preliminary results of incorporating a novel active layer into a GaN light emitting diode (LED) are discussed. Integration of colloidal CdSe quantum dots into a GaN LED active layer is demonstrated. The conductivity of the overgrowth was examined by circular transmission line method (CTLM). Effects on surface roughness due to the active layer incorporation are examined using atomic force microscopy (AFM). LED test devices were fabricated and electroluminescence was demonstrated, the devices exhibit higher turn-on voltages than would be expected for a CdSe active layer.

Polymer Light-Emitting Electrochemical Cells: Doping Concentration, Emission-Zone Position, and Turn-On Time

2007 ◽  
Vol 17 (11) ◽  
pp. 1807-1813 ◽  
Author(s):  
J.-H. Shin ◽  
N. D. Robinson ◽  
S. Xiao ◽  
L. Edman
Keyword(s):  
Doping Concentration ◽  
Electrochemical Cells ◽  
Light Emitting ◽  
Turn On

A Guide for Realizing Efficient Polymer Light‐Emitting Electrochemical Cells in a Single Active Layer Device Structure

2020 ◽  
Vol 7 (1) ◽  
pp. 260-265 ◽  
Author(s):  
Seunghan Kim ◽  
Jong Ik Lee ◽  
Jeehye Yang ◽  
Ik‐Soo Shin ◽  
Taeshik Earmme ◽  
...  
Keyword(s):  
Active Layer ◽  
Electrochemical Cells ◽  
Device Structure ◽  
Light Emitting

Iridium Metal Complexes Containing N-Heterocyclic Carbene Ligands for Blue-Light-Emitting Electrochemical Cells

2010 ◽  
Vol 49 (21) ◽  
pp. 9891-9901 ◽  
Author(s):  
Cheng-Han Yang ◽  
Juan Beltran ◽  
Vincent Lemaur ◽  
Jérôme Cornil ◽  
David Hartmann ◽  
...  
Keyword(s):  
Metal Complexes ◽  
Blue Light ◽  
Electrochemical Cells ◽  
Carbene Ligands ◽  
Light Emitting
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