scholarly journals Modified Back Contact Interface of CZTSe Thin Film Solar Cells: Elimination of Double Layer Distribution in Absorber Layer

2017 ◽  
Vol 5 (2) ◽  
pp. 1700645 ◽  
Author(s):  
Zhaojing Zhang ◽  
Liyong Yao ◽  
Yi Zhang ◽  
Jianping Ao ◽  
Jinlian Bi ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Double Layer ◽  
Absorber Layer ◽  
Thin Film Solar Cells ◽  
Back Contact ◽  
Contact Interface

scholarly journals Analysis of Back-Contact Interface Recombination in Thin-Film Solar Cells

2018 ◽  
Vol 8 (3) ◽  
pp. 871-878 ◽  
Author(s):  
Sanjoy Paul ◽  
Sachit Grover ◽  
Ingrid L. Repins ◽  
Brian M. Keyes ◽  
Miguel A. Contreras ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thin Film Solar Cells ◽  
Back Contact ◽  
Contact Interface ◽  
Interface Recombination

Investigation of Parasitic Absorption in Back Contact of CdTe Solar Cells

2018 ◽  
Author(s):  
Joshua Smay ◽  
Ola Rashwan ◽  
James Then ◽  
Darien Perez
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Absorption Efficiency ◽  
Absorber Layer ◽  
Thin Film Solar Cells ◽  
Infrared Range ◽  
Back Contact ◽  
Back Reflector ◽  
Metal Back

Thin film solar cells (TFSC) differ from the conventional wafer solar cell panels in that they are a fraction of the thickness, hence they boast reduced material costs, lighter weight, and possible flexibility. To improve their light-trapping and absorption efficiency, manufacturers currently use nanometer scale texturing. When manufacturing nano textured thin film solar cells in the substrate configuration, the back reflector is also textured. It has been observed that a textured back reflector leads to parasitic light absorption in silicon solar cells. This occurrence reduces the back reflector effectiveness, and thus reduces absorption in the absorber layer and overall efficiency. However, there is little to no similar research done for thin film (CdTe/CdS) solar cells devices. In this work, wave optical analyses of thin film CdTe/CdS solar cells with and without nano texturing on the metal back reflectors were simulated using ANSYS ANSOFT High Frequency Structural Simulator (HFSS). The optical analyses yielded percentage absorptions for unit cells with four absorber thicknesses range between 250- to 1000 nm, with and without a textured back reflector over six wavelengths range from 360nm to 860 nm, and with 3 different back contact metals (Au, Ag, and Al). It was noted that the textured back contacts show a substantial increase in the absorption in the active CdTe layer in the infrared range. Additionally, back reflector texturing increases the parasitic absorption in the metal back reflector layer as well, especially with ultrathin absorber layer. It was also found that additional parasitic absorption due to a textured back reflector has less of an impact on absorption as the active absorber thickness increases to 500 nm, 750 nm, or 1000 nm. Finally, silver (Ag) as back contact outperforms both aluminum (Al) and gold (Au). This finding might be crucial to solar cell manufacturers because it could possibly be an overlooked factor in achieving higher efficiencies for relatively thin cells.

scholarly journals Modifications of the CZTSe/Mo back-contact interface by plasma treatments

RSC Advances ◽  
2019 ◽  
Vol 9 (46) ◽  
pp. 26850-26855 ◽  
Author(s):  
Wenjian Chen ◽  
Teoman Taskesen ◽  
David Nowak ◽  
Ulf Mikolajczak ◽  
Mohamed H. Sayed ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thin Film Solar Cells ◽  
Back Contact ◽  
Contact Material ◽  
Contact Interface ◽  
Tin Selenide ◽  
Plasma Treatments ◽  
Copper Zinc ◽  
Ar Plasma

Molybdenum (Mo) is the most commonly used back-contact material for copper zinc tin selenide (CZTSe)-based thin-film solar cells. The effect of a pure Ar plasma and a mixed Ar–N2 plasma on the back-contact interface of CZTSe solar cells is reported in this study.

Effect of ZnTe and CdZnTe Alloys at the Back Contact of 1-µm-Thick CdTe Thin Film Solar Cells

2002 ◽  
Vol 41 (Part 1, No. 5A) ◽  
pp. 2834-2841 ◽  
Author(s):  
Nowshad Amin ◽  
Akira Yamada ◽  
Makoto Konagai
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thin Film Solar Cells ◽  
Back Contact ◽  
Cdte Thin Film

The effect of Mo back contact ageing on Cu(In,Ga)Se2 thin-film solar cells

2013 ◽  
Vol 22 (1) ◽  
pp. 83-89 ◽  
Author(s):  
Pedro M. P. Salomé ◽  
Viktor Fjallstrom ◽  
Adam Hultqvist ◽  
Piotr Szaniawski ◽  
Uwe Zimmermann ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thin Film Solar Cells ◽  
Back Contact

n+-Doped-layer free amorphous silicon thin film solar cells fabricated with the CuMg alloy as back contact metal

2011 ◽  
Vol 57 (1) ◽  
pp. 73-75 ◽  
Author(s):  
M.C. Wang ◽  
T.C. Chang ◽  
S.W. Tsao ◽  
Y.Z. Chen ◽  
S.C. Tseng ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Amorphous Silicon ◽  
Thin Film Solar Cells ◽  
Back Contact ◽  
Silicon Thin Film ◽  
Contact Metal

MoOx back contact for CdS/CdTe thin film solar cells: Preparation, device characteristics, and stability

2012 ◽  
Vol 99 ◽  
pp. 349-355 ◽  
Author(s):  
Hao Lin ◽  
Irfan ◽  
Wei Xia ◽  
Hsiang N. Wu ◽  
Yongli Gao ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thin Film Solar Cells ◽  
Back Contact ◽  
Cdte Thin Film
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