Unveiling the composite structures of emissive consolidated p–i–n junction nanocells for white light emission

Nanoscale ◽  
2018 ◽  
Vol 10 (29) ◽  
pp. 13867-13874
Author(s):  
Kyu Seung Lee ◽  
Jaeho Shim ◽  
Hyunbok Lee ◽  
Sang-Youp Yim ◽  
Basavaraj Angadi ◽  
...  

Hybrid organic-Red-Green-Blue (RGB) color quantum dots were incorporated into consolidated p(polymer)–i(RGB quantum dots)–n(small molecules) junction structures to fabricate a single active layer for a light emitting diode device for white electroluminescence.

2013 ◽  
Vol 211 (3) ◽  
pp. 651-655 ◽  
Author(s):  
Jorge Oliva ◽  
Elder De la Rosa ◽  
Luis Diaz-Torres ◽  
Anvar Zakhidov

Author(s):  
Zhounan Yue ◽  
Yuk Fai Cheung ◽  
Hoi Wai Choi ◽  
Zujin Zhao ◽  
Ben Zhong Tang ◽  
...  

2009 ◽  
Vol 24 (5) ◽  
pp. 1730-1734 ◽  
Author(s):  
Hucheng Yang ◽  
G. Lakshminarayana ◽  
Yu Teng ◽  
Shifeng Zhou ◽  
Jianrong Qiu

Sm3+, Ce3+ codoped Al2O3–La2O3–SiO2 glasses were prepared and their luminescence properties were characterized. Blue-cyan to orange-red tunable luminescence was observed from these glasses with different excitation wavelengths ranging from 385 to 410 nm. White light emission with internal luminescence efficiency 42% has been observed using commercially available purple light-emitting-diode excitation. The energy transfer between Ce3+ and Sm3+ has also been investigated from fluorescence decay curves and spectral properties.


2005 ◽  
Vol 86 (13) ◽  
pp. 131905 ◽  
Author(s):  
Hsueh Shih Chen ◽  
Shian Jy Jassy Wang ◽  
Chun Jeu Lo ◽  
Jim Yong Chi

1996 ◽  
Vol 68 (2) ◽  
pp. 147-149 ◽  
Author(s):  
Magnus Granström ◽  
Olle Inganäs

RSC Advances ◽  
2016 ◽  
Vol 6 (86) ◽  
pp. 83110-83116 ◽  
Author(s):  
Lijia Sang ◽  
Meiding Yang ◽  
Huipeng Zhou ◽  
Xinan Huang ◽  
Cong Yu

A white light emitting benzoperylene probe-polyethyleneimine capped quantum dots nanocomposite has been synthesized for the first time.


2008 ◽  
Vol 18 (30) ◽  
pp. 3568 ◽  
Author(s):  
Ilkem Ozge Huyal ◽  
Unsal Koldemir ◽  
Tuncay Ozel ◽  
Hilmi Volkan Demir ◽  
Donus Tuncel

2011 ◽  
Vol 99 (6) ◽  
pp. 063112 ◽  
Author(s):  
J. Dai ◽  
Y. Ji ◽  
C. X. Xu ◽  
X. W. Sun ◽  
K. S. Leck ◽  
...  

2021 ◽  
Author(s):  
Kobra Hasanirokh ◽  
Asghar Asgari ◽  
Saber Mohammadi

Abstract In this work, we focus on the colloidal quantum dot based light-emitting diodes (QD-LEDs) performance. First, we synthesize the spherical QDs with a CdS core that covered with a wider band gap II–VI semiconductor acting as a shell (ZnS). In order to synthesize this nano crystal QDs with structure of CdS/ZnS/CdS/ZnS, we use a reverse micelle process. These four-layer quantum well quantum dots (QWQDs) can generate the white light emission. The positional design of different layers i.e., core/shell QD emitters is a critical factor for white emissive devices. The blue emission generated by CdS core mixes with green/orange components originating from ZnS inner shell and creates an efficiency white light emission. Then, we fabricate a white-QDLED with a device structure of ITO/ ZnO / QD / CBP/ MoO 3 / Al films. A thin film of CdS/ZnS/CdS/ZnS QDs is deposited by electrostatically assembled colloidal QD solutions. The experimental results show that the emission spectra of QDs and current density through the LED are controlled by varying the particle sizes. The peaks of absorbance and Photoluminescence (PL) spectrums get the red shifted as the dot size increases. Furthermore, this QD-LED with a smaller nano particle layer has a higher current density.


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