scholarly journals A comprehensive picture of Cu doping in CdTe solar cells

2013 ◽  
Vol 114 (17) ◽  
pp. 174505 ◽  
Author(s):  
J. Perrenoud ◽  
L. Kranz ◽  
C. Gretener ◽  
F. Pianezzi ◽  
S. Nishiwaki ◽  
...  
Keyword(s):  
Solar Cells ◽  
Cu Doping ◽  
Cdte Solar Cells ◽  
Comprehensive Picture

Control of Cu doping and CdTe/Te interface modification for CdTe solar cells

2017 ◽  
Vol 72 ◽  
pp. 46-51 ◽  
Author(s):  
Taowen Wang ◽  
Sheng Du ◽  
Wei Li ◽  
Cai Liu ◽  
Jingquan Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Cu Doping ◽  
Interface Modification ◽  
Cdte Solar Cells

Cu-doping Effects in CdSexTe1-x/CdTe Solar Cells

2019 ◽  
Author(s):  
Chih-An Hsu ◽  
Vasilis Palekis ◽  
Sergiu Levcenko ◽  
Don Morel ◽  
Chris Ferekides
Keyword(s):  
Solar Cells ◽  
Cu Doping ◽  
Cdte Solar Cells ◽  
Doping Effects

Transparent ZnTe:Cu contacts for bifacial characterization of CdTe solar cells

2005 ◽  
Vol 865 ◽  
Author(s):  
Darshini Desai ◽  
Steven Hegedus ◽  
Brian McCandless ◽  
Daniel Ryan
Keyword(s):  
Solar Cells ◽  
Ohmic Contacts ◽  
Fill Factor ◽  
Diffusion Length ◽  
Spectral Response ◽  
Cu Doping ◽  
Cdte Solar Cells ◽  
Depletion Width ◽  
Comparable Performance

AbstractCu-doped ZnTe films grown by galvanic deposition were developed to provide transparent ohmic contacts to CdTe solar cells. Control of the Cu doping with triethanolamine was critical to limit the free Cu in order to achieve high transparency (>60% in the visible) and to minimize shunting. Devices with ZnTe:Cu contacts had comparable performance to devices with Cu/Au or Cu/graphite contacts, achieving Voc of 0.79 V and fill factor (FF) of 68% for standard front illumination. Bifacial spectral response (SR) measurements, through front and back contacts, were analyzed and yielded a diffusion length (L) of 0.8 μm and depletion width (W) of 2.5 μm. Backwall SR measurements made through the transparent ZnTe contact are much more sensitive to L and W than are measurements for standard front illumination. ZnTe:Cu is a promising material for bifacial characterization as well as tandem cell interconnects and more stable Cu-doped contacts.

scholarly journals Numerical Investigation of Graphene as a Back Surface Field Layer on the Performance of Cadmium Telluride Solar Cell

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3275
Author(s):  
Devendra KC ◽  
Deb Kumar Shah ◽  
M. Shaheer Akhtar ◽  
Mira Park ◽  
Chong Yeal Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Doping Concentration ◽  
Carrier Lifetime ◽  
Short Circuit ◽  
Back Surface ◽  
Back Surface Field ◽  
Cdte Solar Cell ◽  
Cdte Solar Cells ◽  
Surface Field

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.

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