blue light-emitting layer
Effect of triplet multiple quantum well structures on the performance of blue phosphorescent organic light emitting diodes
... of blue PHOLEDs (devices A, B, C, and D). A series of phosphorescent blue devices were prepared with the structure of ITO as an anode; N , N’ -bis-(1-naphyl)- N , N’ -diphenyl-1, 1 ’ - biphenyl-4, 4 ’ ...
5
Enhanced optical output power of blue light emitting diodes with quasi aligned gold nanoparticles
... The CNT thin films were directly drawn out from the CNT arrays [20], which were composed of CNTs with diameters around 10 nm and were aligned parallel in one direction. This method is convenient for mass pro- duction of ...
6
Ultraviolet/blue light emitting diodes based on single horizontal ZnO microrod/GaN heterojunction
... GaN layer was grown on a (0001) sapphire sub- strate with hole concentration and mobility of 10 17 cm −3 and 10 cm 2 /V-s, respectively, was used as the hole injec- tion ...thin layer of PMMA was partly ...
6
Controlling the emission efficiency of blue green iridium(III) phosphorescent emitters and applications in solution processed organic light emitting diodes
... electron-‐transporting layer 4,6-‐bis(3,5-‐ di(pyridin-‐3-‐yl)phenyl)-‐2-‐methylpyrimidine (B3PyMPM) was then thermally evaporated onto the emitting layer under high ...
31
Photostimulation for in vitro optogenetics with high power blue organic light emitting diodes
... to light, is widely used in neuroscience to modulate the electrical excitability of ...neurons, light wavelength and power density must fit with the expression levels and biophysical properties of the ...
8
Highly efficient blue organic light emitting diodes using quantum well like multiple emissive layer structure
... emissive layer blue OLED ...QWS blue OLED devices, the device G including DPASN shows the highest current density at 8 V because the hole and electron injection barriers of device G were higher than ...
7
Deep blue oxadiazole containing thermally activated delayed fluorescence emitters for organic light emitting diodes
... bimolecular annihilation pathway being the limiting factor for efficient OLED operation at high current density and brightness. Thus, further work on optimising exciton dynamics in the EML and minimizing bimolecular ...
32
17β-estradiol ameliorates oxidative stress and blue light-emitting diode-induced retinal degeneration by decreasing apoptosis and enhancing autophagy
... lux blue leD for 2 h 5 days after ...leD, light-emitting diode; OVX, ovariectomized; Onl, outer nuclear layer; gcl, ganglion cell layer; inl, inner nuclear layer; iPl, inner ...
16
Blue emitting cationic iridium(III) complexes featuring pyridylpyrimidine cyclometalating ligands and their use in sky blue and blue green light emitting electrochemical cells (LEECs) and organic light emitting diodes (OLEDs)
... In the case of L1 and L2, the luminance initially rises during the first 12 and 40 seconds, respectively, and then decreases. In the case of L3 and L4 the luminance initially drops. The device performance of L1–L4 is ...
13
Investigation of Nanoscale Photonic Crystal Arrays on Gallium Nitride Blue Light emitting Diodes
... In summary, the best photonic band gap limitation has been found for the triangular lattice array with the lattice constant of 200 nm, and the production of air holes for a radius of 75 nm. When the lattice components in ...
5
Synthesis of pH stable, blue light-emitting diode-excited, fluorescent silica nanoparticles and effects on cell behavior
... LED light sources for biomedical applications. Blue wavelength LEDs have been used in medical applications such as polymerization of dental composites and treatment of rheumatoid arthritis, whereas red ...
12
Synthesis and Optical Studies on Concentration Dependent Dy3+ Doped Lithium Fluoroborate Glasses for W-LED Applications
... The yellow to blue (Y/B) ratios and color coordinates have been calculated from the luminescence spectra and the utility of the present glasses for white light emitting diodes [r] ...
9
Determination of Planck’s Constant using Light Emitting Diodes
... The purpose of this study was to determine Planck’s constant using the energy needed to ex- cite free electrons in a light emitting diode. In this work, an electric current was used to excite elec- trons ...
6
Influence of Quantum Dot Layer on the Properties of Quantum Dot Light Emitting Diodes
... evaporation technologies. Experiment results show that with the quantum dot concentration being fixed to 8 mg/ml, the devices have good electroluminescent properties and excitons recombination luminescent region is ...
7
Comparison of gallium nitride derived light-emitting diodes and compact fluorescent lamp phototherapy units in management of neonatal hyperbilirubinemia
... The study was conducted in tertiary neonatal units under S.M.S medical college, Jaipur in new-born admitted for neonatal hyperbilirubinemia in phototherapy range as per AAP charts 2004. 2 A total 200 ‘stable’ neonates of ...
5
The effect of nocturnal blue light exposure from light-emitting diodes on wakefulness and energy metabolism the following morning
... Reduction in energy expenditure in the morning after evening blue light exposure is due to a reduced wake- fulness. Energy expenditure is related to sleep stages and waking after sleep onset is accompanied ...
8
Observations made on three patients suffering from ulcers of the lower limbs treated with Blue Light
... The first patient treated with this technology was a 90-year-old man with chronic venous insufficiency, diabetic who regularly took insulin, and had a problem with recurring venous ulcers over a 50-year period. The ...
6
Effects of Adjunctive Daily Blue Light Toothbrushing on Dental Plaque and Gingival Inflammation—A Randomized Controlled Study
... the light and enter into an exited state ...of light at a wavelength of 450 nm is much lower [24] [43] [44] ...the light energy can be adsorbed by ...LED light (unpublished ...
17
1-[5-(4-methylphenyl)-1,3,4-oxadiazol-2-yl]methanamine compound has been successfully synthesized by reacting p-Toluic hydrazide and glycine via polyphosphoric acid
... 6. Chidirala, S.; Ulla, H.; Valaboju, A.; Kiran, M.R.; Mohanty, M.E.; Satyanarayan, M.N.; Umesh, G,; Bhanuprakash, K.; Rao, V.J. Pyrene–Oxadiazoles for Organic Light-Emitting Diodes: Triplet to Singlet ...
6
Automated color sensor system using LDR and RGB LEDS controlled by Arduino
... There are different types of electronic equipment that can be used as color sensors. Electronic components like LDRs and phototransistors detect light by changing their behavior based on the intensity reflected on ...
6