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...

Ngày tải lên: 10/09/2015, 15:54

... 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...

Ngày tải lên: 20/06/2014, 23:20

... 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...

Ngày tải lên: 22/06/2014, 00:20

... 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...

Ngày tải lên: 06/05/2014, 08:55

... 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...

Ngày tải lên: 20/06/2014, 23:20

... 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...

Ngày tải lên: 11/09/2015, 10:17

... 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...

Ngày tải lên: 05/10/2015, 21:22

... 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...

Ngày tải lên: 31/07/2015, 18:48

... 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...

Ngày tải lên: 18/06/2014, 22:20

... 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...

Ngày tải lên: 19/06/2014, 21:20

... 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...

Ngày tải lên: 19/06/2014, 21:20

... 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...

Ngày tải lên: 19/06/2014, 21:20

... 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,...

Ngày tải lên: 19/06/2014, 21:20

... for organic light- emitting diodes Chemistry – A European Journal, Vol 13(2) pp 380-3 95 Cundari, T.R & Stevens, W.J (1993) Effective core potential basis sets J Chem Physics, Vol 98, pp 55 55- 556 5 ... of narrow band gap fluorescent material utilizing beryllium complexes as host and ETL for efficient red phosphorescent 106 Organic Light Emitting Diode – Material, Proces...

Ngày tải lên: 19/06/2014, 21:20

... narrow band-gap host and Ir(piq)3 red dopant materials, and 138 Organic Light Emitting Diode – Material, Process and Devices Bepp2 charge control layers (CCL) Triplet energies in fabricated MQW devices ... identical devices but with different dopant concentrations lying between 0.5 and wt%; 128 Organic Light Emitting Diode – Material, Process and Devices...

Ngày tải lên: 19/06/2014, 21:20