White electroluminescence from a single polymer system: phenothiazine derivatives as a red emissive dopant and polyfluorene as a blue host

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92778-92785 ◽  
Author(s):  
Sandu Nagaraju ◽  
Ezhakudiyan Ravindran ◽  
Elumalai Varathan ◽  
Venkatesan Subramanian ◽  
Narayanasastri Somanathan
Keyword(s):  
White Light ◽  
Self Assembly ◽  
Polymer System ◽  
Phenothiazine Derivatives ◽  
Light Emitting ◽  
Organic Light ◽  
High Efficient ◽  
White Electroluminescence

Photo physical studies of organic light emitting copolymers and their ordered supramolecular self-assembly: tuning the electroluminescence properties with high efficient white light.

Optimization for white organic light-emitting diode based on DCJTB as color conversion layer

2018 ◽  
Vol 32 (27) ◽  
pp. 1850299
Author(s):  
Pei Wang ◽  
Zhen Wang ◽  
Ai Chen ◽  
Jia-Feng Xie ◽  
Xin Zheng
Keyword(s):  
Current Efficiency ◽  
Current Density ◽  
White Light ◽  
Power Efficiency ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
High Efficient ◽  
Color Conversion

In this paper, combining phosphorescence and fluorescence to form white light was realized based on DCJTB:PMMA/ITO/NPB/TCTA/FIrpic:TCTA/TPBi/Ir(ppy)3:TPBi/TPBi/Cs2CO3/Al. The effects of red fluorescence on this white light device was studied by adjusting the concentration of DCJTB. The study shows that the device with a DCJTB concentration of 0.7% in the color conversion layer (CCL) generates a peak current efficiency and power efficiency of 23.4 cd ⋅ A[Formula: see text] and 7.5 lm ⋅ W[Formula: see text], respectively. And it is closest to the equal-energy white point of (0.33, 0.33) which shows a CIE (Commission Internationale de L’Eclairage) coordinate of (0.35, 0.43) and a color rendering index (CRI) of 70 at current density of 10 mA ⋅ cm[Formula: see text]. In order to improve the efficiency, we design and fabricate both high efficient and pure white organic light-emitting diode (WOLED) by replacing the single blue emission layer (EML) with double EMLs of FIrpic:TCTA and FIrpic:TPBi. The further study shows that, when the layers of EML is three and the concentration of DCJTB at 0.7%, the device exhibits good performance specifically, at current density of 10 mA ⋅ cm[Formula: see text], the current efficiency of 28.2 cd ⋅ A[Formula: see text] (power efficiency of 10.3 lm ⋅ W[Formula: see text]), and the CIE coordinate of (0.33, 0.31) (CRI of 80.38).

Coordination Units of Mn2+ Modulation toward Tunable Emission in Zero-Dimensional Bromides for White Light-Emitting Diodes

2022 ◽  
Author(s):  
Guojun Zhou ◽  
Jialiang Ding ◽  
Xing-Xing Jiang ◽  
Jian Zhang ◽  
Maxim Molokeev ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Lead Free ◽  
Metal Halides ◽  
Light Emitting ◽  
High Efficient ◽  
White Light Emitting Diodes ◽  
Multifunctional Platform ◽  
Tunable Emission

Organic-inorganic metal halides have become a multifunctional platform for manipulating photoluminescence due to high-efficient and tunable emissions, especially for lead-free Mn2+-based halides. Herein, the zero-dimensional (0D) bromides of (C5H14N3)2MnBr4 and...

scholarly journals White light emission produced by CTMA-DNA nanolayers embedded with a mixture of organic light-emitting molecules

RSC Advances ◽  
2019 ◽  
Vol 9 (54) ◽  
pp. 31628-31635 ◽  
Author(s):  
Prathamesh Chopade ◽  
Sreekantha Reddy Dugasani ◽  
Sohee Jeon ◽  
Jun-Ho Jeong ◽  
Sung Ha Park
Keyword(s):  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Light Emitting ◽  
Organic Light

White light emission produced by organic light-emitting molecule-embedded CTMA-DNA nanolayers was demonstrated.

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