scholarly journals Characterization of white electroluminescent devices fabricated using conjugated polymer blends

2004 ◽  
Vol 19 (7) ◽  
pp. 2081-2086 ◽  
Author(s):  
Do-Hoon Hwang ◽  
Moo-Jin Park ◽  
Suk-Kyung Kim ◽  
Nam-Heon Lee ◽  
Changhee Lee ◽  
...  
Keyword(s):  
Polymer Blends ◽  
White Light ◽  
Indium Tin Oxide ◽  
Conjugated Polymer ◽  
Light Emission ◽  
Red Light ◽  
White Light Emission ◽  
Blend Ratio ◽  
Light Emitting

We report the characterization of white light emitting devices fabricated using conjugated polymer blends. Blue emissive poly[9,9-bis(4′-n-octyloxyphenyl)fluorene-2,7-diyl-co-10-(2′-ethylhexyl)phenothiazine-3,7-diyl] [poly(BOPF-co-PTZ)] and red emissive poly(2-(2′-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene) (MEH-PPV) were used in the blends. The inefficient energy transfer between these blue and red light emitting polymers (previously deduced from the photoluminscence (PL) spectra of the blend films) enables the production of white light emission through control of the blend ratio. The PL and electroluminescence (EL) emission spectra of the blend systems were found to vary with the blend ratio. The EL devices were fabricated in the indium tin oxide [poly(3,4-ethylenedioxy-thiophene)-poly(styrenesulfonate)] (ITO/PEDOT-PSS)blend/LiF/Al configuration, and white light emission was obtained for one of the tested blend ratios.

White Electroluminescent Devices Using Polymer Blends

2003 ◽  
Vol 771 ◽  
Author(s):  
Do-Hoon Hwang ◽  
Jeong-Ik Lee ◽  
Chang-Hee Lee
Keyword(s):  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Good Opportunity ◽  
Blend Ratio ◽  
Maximum Brightness ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Blend Films ◽  
Energy Transfers

AbstractWhite light-emitting devices were fabricated using the blends of blue, green, red emissive polymers of poly[9,9-(2'-ethylhexyl)fluorene] (PEHF), poly(9,9-dioctylfluorene-2,7-vinylene) (POFV), poly(2-(3',7'-dimethyloctyloxy)-5-methoxy-1,4-phenylene-1-cyanovinylene) (CNPPV) and poly(2-(2'-ethylhexyloxy)-5-methoxy-1,4-phenylenevinylene) (MEH-PPV). Inefficient energy transfers between the blue polymer and the green or the red polymer, which was observed in PL spectra of the blend films, provides a good opportunity to get white light emission due to better blend ratio controllability. The EL devices were fabricated with ITO/PEDOT/blend/Ca/Al configuration and good white light-emission was obtained for a certain blend ratio. The light-emission was observable from 4V and a maximum brightness of 400 cd/m2 was obtained with the device.

scholarly journals White Light Emission from Blue InGaN LED with Fluorescent Conjugated Polymer Blends

2009 ◽  
Vol 41 (12) ◽  
pp. 1076-1079 ◽  
Author(s):  
Hong Jeong Yu ◽  
Kwanhwi Park ◽  
Wonkeun Chung ◽  
Jihyun Kim ◽  
Byung-hee Chun ◽  
...  
Keyword(s):  
Polymer Blends ◽  
White Light ◽  
Conjugated Polymer ◽  
Light Emission ◽  
White Light Emission

White-light-emitting properties of SrTiO3:Pr3+ nanoparticles

RSC Advances ◽  
2015 ◽  
Vol 5 (35) ◽  
pp. 27491-27495 ◽  
Author(s):  
Wei Tang ◽  
Ye Sun ◽  
Miao Yu ◽  
Xiao Liu ◽  
Yongqi Yin ◽  
...  
Keyword(s):  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Light Emitting

White-light emission from SrTiO3:Pr3+ nanoparticles has been achieved by tuning combination of the 3P0 and 1D2-related blue to red emissions.

White light emission from a blue polymer light emitting diode combined with YAG:Ce3+ nanoparticles

2013 ◽  
Vol 211 (3) ◽  
pp. 651-655 ◽  
Author(s):  
Jorge Oliva ◽  
Elder De la Rosa ◽  
Luis Diaz-Torres ◽  
Anvar Zakhidov
Keyword(s):  
White Light ◽  
Light Emission ◽  
Light Emitting Diode ◽  
White Light Emission ◽  
Light Emitting ◽  
Polymer Light Emitting Diode

White light emission from a two-component hybrid gel via an energy transfer process

2015 ◽  
Vol 17 (48) ◽  
pp. 32297-32303 ◽  
Author(s):  
Xinhua Cao ◽  
Haichuang Lan ◽  
Zhenhua Li ◽  
Yueyuan Mao ◽  
Liming Chen ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Transfer Process ◽  
White Light ◽  
Light Emission ◽  
Light Harvesting ◽  
Energy Transfer Process ◽  
White Light Emission ◽  
Light Emitting ◽  
Hybrid Gel ◽  
Two Component

A two-component light-harvesting organogel containing a naphthalimide-based gelator as a donor and a phosphorescent Ir(iii) complex as an acceptor was used to produce white-light-emitting organogels.

Utilizing an effective framework to dye energy transfer in a carbazole-based metal–organic framework for high performance white light emission tuning

2018 ◽  
Vol 5 (11) ◽  
pp. 2868-2874 ◽  
Author(s):  
Yu-Pei Xia ◽  
Chen-Xue Wang ◽  
Lian-Cai An ◽  
Da-Shuai Zhang ◽  
Tong-Liang Hu ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
High Performance ◽  
Light Emission ◽  
Metal Organic Framework ◽  
White Light Emission ◽  
Transfer Mechanism ◽  
Energy Transfer Mechanism ◽  
Light Emitting ◽  
Metal Organic

By introducing dyes into a MOF, a white-light-emitting luminophor was obtained based on effective framework to dye energy transfer mechanism.

Spray pyrolysis synthesis and characterization of Mg1-xSrxMoO4 heterostructure with white light emission

2020 ◽  
Vol 813 ◽  
pp. 152235 ◽  
Author(s):  
A.A.G. Santiago ◽  
R.L. Tranquilin ◽  
P. Botella ◽  
F.J. Manjón ◽  
D. Errandonea ◽  
...  
Keyword(s):  
Spray Pyrolysis ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Synthesis And Characterization ◽  
Pyrolysis Synthesis
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