scholarly journals Effective module level encapsulation of CIGS solar cells with Al2O3 thin film grown by atomic layer deposition

2021 ◽  
Vol 222 ◽  
pp. 110914
Author(s):  
Shan-Ting Zhang ◽  
Maxim Guc ◽  
Oliver Salomon ◽  
Roland Wuerz ◽  
Victor Izquierdo-Roca ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Layer Deposition ◽  
Cigs Solar Cells ◽  
Al2o3 Thin Film

scholarly journals Atomic Layer Deposition of Ultrathin ZnO Films for Hybrid Window Layers for Cu(Inx,Ga1−x)Se2 Solar Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2779
Author(s):  
Jaebaek Lee ◽  
Dong-Hwan Jeon ◽  
Dae-Kue Hwang ◽  
Kee-Jeong Yang ◽  
Jin-Kyu Kang ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Atomic Layer Deposition ◽  
Short Circuit ◽  
Atomic Layer ◽  
Window Layer ◽  
Zno Films ◽  
Material Structure ◽  
Layer Deposition ◽  
Cigs Solar Cells

The efficiency of thin-film chalcogenide solar cells is dependent on their window layer thickness. However, the application of an ultrathin window layer is difficult because of the limited capability of the deposition process. This paper reports the use of atomic layer deposition (ALD) processes for fabrication of thin window layers for Cu(Inx,Ga1−x)Se2 (CIGS) thin-film solar cells, replacing conventional sputtering techniques. We fabricated a viable ultrathin 12 nm window layer on a CdS buffer layer from the uniform conformal coating provided by ALD. CIGS solar cells with an ALD ZnO window layer exhibited superior photovoltaic performances to those of cells with a sputtered intrinsic ZnO (i-ZnO) window layer. The short-circuit current of the former solar cells improved with the reduction in light loss caused by using a thinner ZnO window layer with a wider band gap. Ultrathin uniform A-ZnO window layers also proved more effective than sputtered i-ZnO layers at improving the open-circuit voltage of the CIGS solar cells, because of the additional buffering effect caused by their semiconducting nature. In addition, because of the precise control of the material structure provided by ALD, CIGS solar cells with A-ZnO window layers exhibited a narrow deviation of photovoltaic properties, advantageous for large-scale mass production purposes.

Sign in / Sign up

Export Citation Format

Share Document