High Efficiency White-Light-Emitting Organic Devices Coupled With Lateral Color Conversion Layer

2006 ◽  
Author(s):  
Akiyoshi Mikami
Keyword(s):  
White Light ◽  
High Efficiency ◽  
Light Emitting ◽  
Organic Devices ◽  
Color Conversion

Ultra-High Efficiency White Light Emitting Diodes

2006 ◽  
Vol 45 (No. 41) ◽  
pp. L1084-L1086 ◽  
Author(s):  
Yukio Narukawa ◽  
Junya Narita ◽  
Takahiko Sakamoto ◽  
Kouichiro Deguchi ◽  
Takao Yamada ◽  
...  
Keyword(s):  
White Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
White Light Emitting Diodes

High-efficiency and good color quality white light-emitting devices based on polymer blend

2009 ◽  
Vol 10 (5) ◽  
pp. 843-848 ◽  
Author(s):  
Jianhua Zou ◽  
Jie Liu ◽  
Hongbin Wu ◽  
Wei Yang ◽  
Junbiao Peng ◽  
...  
Keyword(s):  
Polymer Blend ◽  
White Light ◽  
High Efficiency ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Color Quality

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).

High-efficiency and low assembly-dependent chip-scale package for white light-emitting diodes

2015 ◽  
Vol 5 (1) ◽  
pp. 057606 ◽  
Author(s):  
Che-Hsuan Huang ◽  
Kuo-Ju Chen ◽  
Ming-Ta Tsai ◽  
Min-Hsiung Shih ◽  
Chia-Wei Sun ◽  
...  
Keyword(s):  
White Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Chip Scale Package ◽  
White Light Emitting Diodes

Three-dimensional GaN dodecagonal ring structures for highly efficient phosphor-free warm white light-emitting diodes

Nanoscale ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 4686-4695 ◽  
Author(s):  
Young Chul Sim ◽  
Seung-Hyuk Lim ◽  
Yang-Seok Yoo ◽  
Min-Ho Jang ◽  
Sunghan Choi ◽  
...  
Keyword(s):  
White Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Three Dimensional ◽  
Light Emitting ◽  
White Leds ◽  
Highly Efficient ◽  
Warm White Light ◽  
Ring Structures ◽  
White Light Emitting Diodes

Multifaceted dodecagonal ring structures emit light of various colours with high efficiency and are demonstrated to be phosphor-free white LEDs.

Achieving highly saturated single-color and high color-rendering-index white light-emitting electrochemical cells by CsPbX3 perovskite color conversion layers

2018 ◽  
Vol 6 (47) ◽  
pp. 12808-12813 ◽  
Author(s):  
Cheng-Ming Wang ◽  
Yong-Ming Su ◽  
Ting-An Shih ◽  
Guan-Yu Chen ◽  
Yan-Zhi Chen ◽  
...  
Keyword(s):  
White Light ◽  
Electrochemical Cells ◽  
Light Emitting ◽  
Color Rendering Index ◽  
Color Rendering ◽  
Color Conversion

Saturated emission from light-emitting electrochemical cells integrated with CsPbX3 perovskite color conversion layers.

Achieving High-Efficiency Polymer White-Light-Emitting Devices

2006 ◽  
Vol 18 (1) ◽  
pp. 114-117 ◽  
Author(s):  
J. Huang ◽  
G. Li ◽  
E. Wu ◽  
Q. Xu ◽  
Y. Yang
Keyword(s):  
White Light ◽  
High Efficiency ◽  
Light Emitting ◽  
Light Emitting Devices
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