Encapsulation issues in organic light emitting diodes
Encapsulation issues in organic light emitting diodes
... adhesion between the organic and inorganic layers This thesis focuses on issues in encapsulating organic light- emitting diodes with thin films Other than the quality of the encapsulation film, ... polymer light- emitting display (PLED) materials is their solubility in organic solvents, allowing them to be deposited onto a glass or flexible plastic substrate using spin-c...
highly efficient blue organic light emitting diodes using quantum well like
... Highly efficient blue organic light- emitting diodes using quantum well- like multiple emissive layer structure Ju-An Yoon1 Email: jjuan25@naver.com ... Abstract In this study, the properties of blue organic light- emitting diodes (OLEDs), employing quantum well- like structure (QWS) that includes four different blue emissive materials of 4,4′-bis(2,2′-diph...
Báo cáo hóa học: " Effect of triplet multiple quantum well structures on the performance of blue phosphorescent organic light emitting diodes" potx
... Effect of triplet multiple quantum well structures on the performance of blue phosphorescent organic light- emitting diodes Seokjae Lee†1, Jaryong Koo†1, Gunwoo Hyung†1, Donghwan Lim1, Donghyung ... the other devices due to a relatively narrow emissive region Conclusions In conclusion, the present study reports on the high efficiency blue PHOLEDs based...
Báo cáo hóa học: " Electrospray deposition of polymer thin films for organic light-emitting diodes" pot
... Electrospray deposition of polymer thin films for organic light-emitting diodes Wontae Hwang1, Guoqing Xin1, Minjun Cho1, Sung Min Cho1, and Heeyeop Chae*2 School of Chemical Engineering, ... Abstract Electrospray process was developed for organic layer deposition onto polymer organic light-emitting diode [PLED] devices in this work An electrospray can be u...
Báo cáo hóa học: " Modification of Conductive Polymer for Polymeric Anodes of Flexible Organic Light-Emitting Diodes" pdf
... a C(1s), O(1s) spectra at normal take-off angle of 458, b S(2p) spectra at normal take-off angle of 458, and c S(2p) spectra at a smaller take-off angle of 25° 123 400 Luminous intensity (µW/cm2) ... in conductivity was achieved with the modification process Based on the modified polymeric anodes, FOLEDs were fabricated and compared with the FOLEDs of ITO anodes A lower turn volt...
Luminescent materials for organic light emitting diodes (OLEDs) and bioimaging
... Phosphorescent materials for OLEDs Chapter 1.1 Introduction Mechanism and structures of organic light- emitting diodes (OLEDs) Light- emitting materials for OLEDs 1.2.1 Fluorescent materials 1.2.2 ... Alq3, TPD and PPV 1.1 Mechanism and structure of organic light- emitting diodes (OLEDs) Electroluminescence is obtained from light- emitting diodes...
Study of drop on demand inkjet printing technology with application to organic light emitting diodes
... Inkjet Printing Drop Ejection Parameters A.1 VI Summary SUMMARY This thesis aims to further investigate the application of drop- on- demand (DoD) inkjet printing technology in the fabrication of ... Discussion 118 4.3.1 ITO Surface Patterning 118 4.3.2 Drop- on- Demand Inkjet Printing of PEDOT:PSS 119 4.3.3 Characterization of P-OLED Devices 127 4.4 Conclus...
Evolution of dark spots in organic light emitting devices
... i.e inorganic and organic electroluminescent devices 1.2.4.1 Inorganic Light Emitting Devices There are two types of inorganic electroluminescence devices In the first type, light is produced ... Displays 1.2.4 Electroluminescent (EL) Displays 1.2.4.1 Inorganic Light Emitting Devices 1.2.4.2 Organic Light Emitting Devices (OLEDs) 1.3 Development of OLEDs 11 i...
Báo cáo hóa học: " The origin of the red emission in n-ZnO nanotubes/p-GaN white light emitting diodes" pdf
... below the conduction band are denoted to be contributing to the red emission In summary, the origin of red emission in chemically obtained ZnO nanotubes has been investigated by EL spectra The ... (1.65 eV) The EL intensities of the green, yellow, orange, and the red emission (from 620 to 690 nm) are decreased, but the EL intensity of the red emiss...
Investigation of Mg doping profile in the pcladding layer for highbrightness AlGaInPbased light emitting diodes.
... having different Mg doping profiles in the p-cladding layer The layer As the [Cp2 Mg] /[III] value in the “b” zone was inset in (b) shows the relative increase of brightness for the same LEDs increased ... having different Mg doping profiles in the p-cladding layer Table I Detailed Mg doping profiles for “a,” “b,” and “c” zones in the p-cladding...
Báo cáo sinh học: " Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light emitting diodes" pot
... applications The 2-MeV ions only have a minor effect on optical properties of the LED devise after irradiation with moderate fluences Conclusion In summary, the influence of He+ ion irradiation on the ... eV) The observation of the band-edge emissions at 380 nm (3.26 eV) are attributed to the first and second longitudinal optical (LO) phonon replica This is con...
Organic Light Emitting Diode Material Process and Devices Part 1 pot
... Iridium- and Platinum-Containing Polymers 15 0 15 400 (a) 10 11 10 0 (b) 12 13 300 200 50 10 0 500 600 700 Wavelength (nm) 800 500 600 700 Wavelength (nm) 800 Fig 10 PL spectra for (a) 10 , 11 , (b) 12 and ... monomeric analog 14 , whereas the spectra for the platinum polymers 11 and 13 showed a characteristic strong band due to the conjugated 14 Organic Light Emitt...
Organic Light Emitting Diode Material Process and Devices Part 2 pptx
... et al., 20 07) And thus, emitting and charge-transporting materials with a high ionization potential values such as oxadiazole 30 Organic Light Emitting Diode – Material, Process and Devices (Tokito ... = C10H21 11d:R = (CH2)2O(CH2)2OCH3 11e: R = CH2CH(C2H5)C4H9 rac 11f: R = COC7H15 11g: R = COCH(C3H7) 11h: OR 12a: R = OC8H17 OC8H1 12b: R = OC8H17 OC8H17 OC10H21 O RO OC1...
Organic Light Emitting Diode Material Process and Devices Part 3 doc
... 42 Organic Light Emitting Diode – Material, Process and Devices (TGA) in N2 at a heating rate of 20 °C/min dendrimers TP1 and TP2 exhibit high glasstransition temperatures (Tg’s) at 142 and 130 ... cyclohexane to 54 Organic Light Emitting Diode – Material, Process and Devices polar DMF caused only a very slight, positive, batnochromic shift in the -* absorp...
Organic Light Emitting Diode Material Process and Devices Part 4 pdf
... dyad (PM-1) and pentamer (PM-2), have been sensitized and found to serve as good 84 Organic Light Emitting Diode – Material, Process and Devices candidates of red -light emitting materials for ... with polypyridyl ligands was developed a long time ago in the framework of crystal field theory and ligand field theory 76 Organic Light Emitting Diode – Material,...
Từ khóa:
- toward efficient organic light emitting diodes
- shoot buds cultured under red and blue light emitting diodes
- optical sources light emitting diodes and laser technology
- light emitting diodes and batteries based on conducting polymers
- iridium iii complexes and phosphorescent organic light emitting diode characteristics