Effects of Cu in CdS∕CdTe solar cells studied with patterned doping and spatially resolved luminescence

2004 ◽  
Vol 85 (9) ◽  
pp. 1529-1531 ◽  
Author(s):  
S. D. Feldman ◽  
R. T. Collins ◽  
V. Kaydanov ◽  
T. R. Ohno
2013 ◽  
Vol 113 (12) ◽  
pp. 124510 ◽  
Author(s):  
C. Kraft ◽  
H. Hempel ◽  
V. Buschmann ◽  
T. Siebert ◽  
C. Heisler ◽  
...  

2003 ◽  
Vol 431-432 ◽  
pp. 421-425 ◽  
Author(s):  
D.L. Bätzner ◽  
G. Agostinelli ◽  
M. Campo ◽  
A. Romeo ◽  
J. Beier ◽  
...  

2001 ◽  
Vol 668 ◽  
Author(s):  
G. Agostinelli ◽  
E.D. Dunlop ◽  
B. Ebner ◽  
N. Gibson

ABSTRACTThis paper presents a detailed analysis of the spatially resolved evolution of External Quantum Efficiency of electrodeposited CdS/CdTe solar cells as a function of the duration of the post-deposition annealing process which promotes n to p-type conversion of electrodeposited CdTe. Strips of 30×4 cm were cut from deposited plates at various stages of the fabrication process and processed into cells. Annealing treatments were carried out on these strips at 400°C for times ranging from 1 to 120 minutes. 130 spectral response curves (in the range of 300 to 900 nm) have been measured to trace temporal evolution and spatial non-uniformity of the materials and extrapolate parameters such as effective diffusion lengths, evolution of the collection profiles, and junction depth. Correlation between these parameters suggests that recrystallisation does not take place uniformly but progresses through the film. The analysis of structural vs. optical parameters along the cells provides evidence for spatial non-uniformities of the state of crystallisation of as-deposited and annealed material. Poor performance has been observed near the edges of the cells where material is resistant to recrystallisation.


Solar RRL ◽  
2021 ◽  
Author(s):  
Anh Dinh Bui ◽  
Md Arafat Mahmud ◽  
Naeimeh Mozaffari ◽  
Rabin Basnet ◽  
The Duong ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3275
Author(s):  
Devendra KC ◽  
Deb Kumar Shah ◽  
M. Shaheer Akhtar ◽  
Mira Park ◽  
Chong Yeal Kim ◽  
...  

This paper numerically explores the possibility of ultrathin layering and high efficiency of graphene as a back surface field (BSF) based on a CdTe solar cell by Personal computer one-dimensional (PC1D) simulation. CdTe solar cells have been characterized and studied by varying the carrier lifetime, doping concentration, thickness, and bandgap of the graphene layer. With simulation results, the highest short-circuit current (Isc = 2.09 A), power conversion efficiency (h = 15%), and quantum efficiency (QE ~ 85%) were achieved at a carrier lifetime of 1 × 103 ms and a doping concentration of 1 × 1017 cm−3 of graphene as a BSF layer-based CdTe solar cell. The thickness of the graphene BSF layer (1 mm) was proven the ultrathin, optimal, and obtainable for the fabrication of high-performance CdTe solar cells, confirming the suitability of graphene material as a BSF. This simulation confirmed that a CdTe solar cell with the proposed graphene as the BSF layer might be highly efficient with optimized parameters for fabrication.


Author(s):  
Sandip S. Bista ◽  
Deng-Bing Li ◽  
Zhaoning Song ◽  
Rasha A. Awni ◽  
Suman Rijal ◽  
...  

Solar RRL ◽  
2021 ◽  
Author(s):  
T. Ablekim ◽  
J.N. Duenow ◽  
C.L. Perkins ◽  
J. Moseley ◽  
X. Zheng ◽  
...  
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