scholarly journals ZnAl2O4 decorated Al-doped ZnO tetrapodal 3D networks: microstructure, Raman and detailed temperature dependent photoluminescence analysis

2020 ◽  
Vol 2 (5) ◽  
pp. 2114-2126 ◽  
Author(s):  
Joana Rodrigues ◽  
Matthias Hoppe ◽  
Nabiha Ben Sedrine ◽  
Niklas Wolff ◽  
Viola Duppel ◽  
...  

3D network of ZnO:Al tetrapods decorated with ZnAl2O4 particles were synthesised by FTS. Al-doping was confirmed by the broadening and shift of the peak position of the 14 K NBE emission and by the bandgap shift to higher energy due to a Burstein–Moss effect.

2012 ◽  
Vol 482-484 ◽  
pp. 2547-2550
Author(s):  
Peng Fei Gu ◽  
Ya Nan Wang ◽  
Jia Jia Cao ◽  
Yu Yan ◽  
Tie Qiang Zhang ◽  
...  

We here report the temperature effect on photoluminescence(PL) spectra of PbSe quantum dots (QDs), which exhibit a strong temperature dependence on their spectra position and intensity. They potentially act as the temperature marker, sensing temperature variations and reporting temperature changes remotely through optical readout. In addition, the temperature sensitivity characterized by peak position of PbSe QDs was found to be 0.39nm/°C in a range of 10-100 °C.


2013 ◽  
Vol 34 (11) ◽  
pp. 3335-3339 ◽  
Author(s):  
Soaram Kim ◽  
Hyunggil Park ◽  
Giwoong Nam ◽  
Hyunsik Yoon ◽  
Jong Su Kim ◽  
...  

2019 ◽  
Vol 57 (3A) ◽  
pp. 41
Author(s):  
Thuy Thi Pham

This paper reports on the temperature-dependent photoluminescence of porous GaP under the 532-nm excitation. Porous GaP formed by electrochemical anodization of (111)-oriented bulk material exhibits green emission at 550 nm (2.25 eV) and red emission at 770 nm (1.65 eV) at room temperature. In the temperature range from 25 K to 275 K intensity from the green emission gradually decreases when the temperature increases. Additionally, peak position of the green luminescence band shifts to lower energy with increasing temperature and the same the GaP band gap narrowing with temperature. This means a contribution of lattice vibrations.


2007 ◽  
Vol 90 (2) ◽  
pp. 023104 ◽  
Author(s):  
H. P. He ◽  
H. P. Tang ◽  
Z. Z. Ye ◽  
L. P. Zhu ◽  
B. H. Zhao ◽  
...  

2009 ◽  
Vol 24 (2) ◽  
pp. 239-242 ◽  
Author(s):  
Dian-Yuan WANG ◽  
Qing-Kai WANG ◽  
Zhang-Yong CHANG ◽  
Yan-Yan GUO ◽  
Xing-Hua WU

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