Silver gallium selenide (AgGaSe2) impurities and defects

Author(s):  
Author(s):  
Isabela C. B. ◽  
Ricardo Lameirinhas ◽  
Carlos A. F. Fernandes ◽  
João Paulo N. Torres

Thin-film modules are emerging in the photovoltaic market, due to their competitive cost with the traditional crystalline silicon modules. The thin-film cells CuIn(1-x)Ga(x)Se2 (Copper Indium Gallium Selenide - CIGS) are...


Optik ◽  
2020 ◽  
pp. 165987
Author(s):  
Waqas Farooq ◽  
Thamraa Alshahrani ◽  
Syed Asfandyar Ali Kazmi ◽  
Javed Iqbal ◽  
Hassnain Abbas Khan ◽  
...  

2001 ◽  
Vol 8 (3-4) ◽  
pp. 251-259 ◽  
Author(s):  
M. Kepinska ◽  
M. Nowak ◽  
Z. Kovalyuk ◽  
R. Murri

1993 ◽  
Vol 74 (8) ◽  
pp. 4936-4942 ◽  
Author(s):  
F. Priolo ◽  
S. Coffa ◽  
G. Franzò ◽  
C. Spinella ◽  
A. Carnera ◽  
...  

1993 ◽  
Vol 301 ◽  
Author(s):  
S. Uekusa ◽  
A. Majima ◽  
H. Katsumata ◽  
Y. Noyori ◽  
M. Kumagai

ABSTRACTFor the evaluation of an implanted layer, photoluminescence (PL) and photoluminescence excitation (PLE) measurements, which are nondestructive and sensitive methods for identifying impurities and defects, were performed. Yb3+ -related sharp luminescence was observed at a wavelength of 1002nm, due to the transitions which occurred between the spin-orbit levels 2F5/2→2F7/2 of Yb3+ (4f13). Most efficient luminescence of Yb3+ was achieved at an excitation wavelength of around 880nm. The luminescence intensity of this peak (Yb3+) decreased with an increase in annealing temperature. Since the peak has not been observed for good samples in crystallinity, it may indicate that new, efficient energy transfer processes to rare-earth ions occur through the defect energy level. Especially, for the sample annealed at 600°C, Yb-related luminescence intensity excited by the photon energy below the band gap is about 3 times larger than that of excited by the photon energy above the band gap.


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