Organic Light Emitting Diode Directly Fabricated on a Polymer Waveguide Device

Abstract

Organic light emitting diodes (OLEDs) which consists of 8-hydroxyquinoline aluminum (Alq3) and diamine derivative (TPD) were directly fabricated on a polymer waveguide device. Polymer waveguide device consists of deuterated methacrylate polymer core and UV cured epoxy resin cladding. One of the edges of the polymer waveguide was cut in 45 degree, which was served as a mirror, in order to introduce the output light from OLED to the waveguide. Indium-tin oxide (ITO) or semi-transparent aluminum metal was deposited onto the polymer waveguide, which served as anode. The OLED was directly fabricated by evaporation technique at the edge of a waveguide, whose edge served as a mirror.Emission and transmission characteristics of the light from red-light-emitting OLED are also discussed as a light source for the polymer based waveguide with low transmission loss.

An Efficient Pure Blue Organic Light-Emitting Device with Low Driving Voltages

“…[1] Materials and devices have developed rapidly, and active matrix full color displays will become commercially available soon. [3] A number of blue-emitting materials have been synthesized, such as 5,5¢-bis(dimesitylboryl)-2,2¢-bithiophene (BMB-2T), [4] 4,4¢-bis(2,2-diphenylvinyl) biphenyl (DPVBi), [5] and 1,3-bis[4-(N,N-dimethylamino)phenyl-1,3,4-oxadiazolyl] benzene (OXD8); [6] still 9,10-bis-(b-naphthyl)-anthrene (DNA) is a very promising blue fluorescent material for its color purity and thermal stability. [3] A number of blue-emitting materials have been synthesized, such as 5,5¢-bis(dimesitylboryl)-2,2¢-bithiophene (BMB-2T), [4] 4,4¢-bis(2,2-diphenylvinyl) biphenyl (DPVBi), [5] and 1,3-bis[4-(N,N-dimethylamino)phenyl-1,3,4-oxadiazolyl] benzene (OXD8); [6] still 9,10-bis-(b-naphthyl)-anthrene (DNA) is a very promising blue fluorescent material for its color purity and thermal stability.…”

Transient Electroluminescence of White Organic Light-Emitting Diodes with Blue Phosphorescent and Red Fluorescent Emissive Layers

“…We demonstrated that OLEDs with fluorescent materials can be applied to fields of optical communication as electro-optical conversion devices for transmitting signals of optical digital audio and moving images. [7][8][9][10] OLEDs with various emissive materials including blue, green, yellow, and red light emissions have been investigated. Recently, phosphorescent OLEDs fabricated using phosphorescent dyes have demonstrated high external quantum efficiencies.…”

Study of Transient Electroluminescence Process Using Organic Light-Emitting Diode with Partial Doping Layer

“…3) OLEDs can be expected to be applied to electrooptical conversion devices for generating highspeed optical pulses. [4][5][6][7] The doped-type OLEDs have been reported to show bright electroluminescence by Tang et al 8) The doping system is often used in OLEDs to prevent concentration quenching. The luminance is increased by doping the emission layer with highly fluorescent dyes.…”