Energy-Transfer Efficiency in Eu-Doped ZnO Thin Films: The Effects of Oxidative Annealing on the Dynamics and the Intermediate Defect States

2014 ◽  
Vol 6 (3) ◽  
pp. 1765-1772 ◽  
Author(s):  
Samah M. Ahmed ◽  
Paul Szymanski ◽  
Lotfia M. El-Nadi ◽  
Mostafa A. El-Sayed
2014 ◽  
Vol 118 (25) ◽  
pp. 13775-13780 ◽  
Author(s):  
M. Balestrieri ◽  
M. Gallart ◽  
M. Ziegler ◽  
P. Bazylewski ◽  
G. Ferblantier ◽  
...  

2010 ◽  
Vol 107 (12) ◽  
pp. 123522 ◽  
Author(s):  
Julien Petersen ◽  
Christelle Brimont ◽  
Mathieu Gallart ◽  
Guy Schmerber ◽  
Pierre Gilliot ◽  
...  

2014 ◽  
Vol 2 (43) ◽  
pp. 9182-9188 ◽  
Author(s):  
Matteo Balestrieri ◽  
Silviu Colis ◽  
Mathieu Gallart ◽  
Gérald Ferblantier ◽  
Dominique Muller ◽  
...  

Sputtered ZnO thin films doped with Nd present efficient down-shifting properties.


2011 ◽  
Vol 687 ◽  
pp. 667-672 ◽  
Author(s):  
Q. Q. Dai ◽  
L. Luo ◽  
F. Y. Huang ◽  
D. P. Xiong ◽  
X.G. Tang ◽  
...  

ZnO and Eu-doped ZnO thin films were deposited on quartz substrates by reactive radio-frequency magnetron sputtering from a ZnO and Eu-doped ZnO ceramic target respectively. The properties of thin films were characterized by atom force microscope (AFM), X-ray diffraction (XRD), and photoluminescence spectra (PL). XRD reveals that the prepared thin films possess a single crystalline hexagonal wurtzite crystal structure with preferential c-axis orientation. Under above-bandgap excitation at room temperature, PL shows that ZnO films exhibit strong UV near-band-edge excitonic emission and Eu-doped ZnO thin films present UV emission and red emission from Eu3+ ions, demonstrating efficient energy transfer from the host to Eu3+ ions. The influence of annealing on the structure and optical properties of ZnO and Eu-doped ZnO thin films is studied. The efficient energy transfer from the host to Eu3+ and high luminous efficiency indicates that the prepared Eu-doped ZnO thin films are very promising materials for lighting and flat panel display application.


2010 ◽  
Vol 25 (7) ◽  
pp. 711-716 ◽  
Author(s):  
Xue-Tao WANG ◽  
Li-Ping ZHU ◽  
Zhi-Gao YE ◽  
Zhi-Zhen YE ◽  
Bing-Hui ZHAO

2010 ◽  
Vol 157 (2) ◽  
pp. J13 ◽  
Author(s):  
Naoki Yamamoto ◽  
Hisao Makino ◽  
Takahiro Yamada ◽  
Yoshinori Hirashima ◽  
Hiroaki Iwaoka ◽  
...  

2017 ◽  
Vol 4 (5) ◽  
pp. 6311-6316 ◽  
Author(s):  
Pongladda Panyajirawut ◽  
Nattha Pratumsuwan ◽  
Kornkamon Meesombad ◽  
Kridsana Thanawattana ◽  
Artit Chingsungnoen ◽  
...  

2021 ◽  
Vol 23 (12) ◽  
pp. 7495-7503
Author(s):  
Wanlin Cai ◽  
Kai Ren ◽  
Ancong Zhao ◽  
Xiulan Wu ◽  
Rongxing He ◽  
...  

Compared to the PtOO7-based system, the greater EQE of the PtON7-based system is mainly governed by the stronger energy transfer efficiency (ηEET); thus, it is necessary to evaluate ηEET from hosts to guests for the rational design of OLEDs.


Sign in / Sign up

Export Citation Format

Share Document