Journal
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
Volume 20, Issue 1, Pages 26-34Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14686996.2018.1552480
Keywords
Ag network; CIGS solar cell; transparent conductive electrode (TCE); J-V curve; EQE; tensile test
Categories
Funding
- Swiss National Science Foundation [IZLCZ2_170276/1]
- National Natural Science Foundations of China [51661135025]
- Sino-Swiss Science and Technology Cooperation project
- Swiss National Science Foundation (SNF) [IZLCZ2_170276] Funding Source: Swiss National Science Foundation (SNF)
Ask authors/readers for more resources
We explore the feasibility of Ag fiber meshes as electron transport layer for high-efficiency flexible Cu(In, Ga)Se-2 (CIGS) solar cells. Woven meshes of Ag fibers after UV illumination and millisecond flash-lamp treatment results in a sheet resistance of 17 Omega/sq and a visible transmittance above 85%. Conductive Ag meshes are integrated into flexible CIGS cells as transparent conductive electrode (TCE) alone or together with layers of Al-doped ZnO (AZO) with various thickness of 0. 900 nm. The Ag mesh alone is not able to function as a current collector. If used together with a thin AZO layer (50 nm), the Ag mesh markedly improves the fill factor and cell efficiency, in spite of the adverse mesh shadowing. When Ag mesh is combined with thicker (200 nm or 900 nm) AZO layers, no improvements in photovoltaic parameters are obtained. When comparing a hybrid TCE consisting of 50 nm AZO and Ag fiber mesh with a thick 900 nm reference AZO device, an improved charge carrier collection in the near-infrared range is observed. Regardless of the AZO thickness, the presence of Ag mesh slows down cell degradation upon mechanical tensile stress, which could be interesting for implementation into flexible thin film CIGS modules. [GRAPHICS] .
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available