Solar cell back film field scale

What are thin-film solar cells?

Thin-film solar cells are a substitute for more common crystalline silicon solar cells, which consist of thin semiconductor layers. Thin-film materials comprise direct bandgap and can absorb sunlight more efficiently than silicon.

Why do thin-film solar cells have a higher J S C?

The increase of J S C is due to a more significant gathering of incident photons with higher energies. Pure sulfur C u 2 Z n S n S 4 (CZTS) thin-film solar cells' current performance is primarily constrained by low V O C.

Is CZTS a suitable absorber layer for thin-film solar cells?

The CZTS material exhibits favorable optical and electronic properties comparable to CIGS's, positioning it as a promising candidate for use as an absorber layer in thin-film solar cells. In contrast to CIGS and other thin-film materials such as CdTe, CZTS consists entirely of earth-abundant and non-toxic elements.

Are thin-film solar cells better than silicon solar cells?

While thin-film solar cells generally exhibit lower efficiencies (typically 10-15%) than silicon cells, they perform well in low-light conditions and at high temperatures. Although thin-film cells are less efficient than first-generation solar cells, they offer reduced production costs due to their lower energy and temperature requirements.

How thick is a solar cell?

The overall thickness of the device structure has been optimized to be the value of 2.01 μm tailoring the device structure to very thin and light. The current CdTe-based cell thickness can be seen around 4-6 μm, and CIS (or CIGS) based solar cells are approximately 3–4 μm, as seen from the literature review.

Why is CZTSSe a strong competitor to other thin-film solar cells?

CZTSSe is a strong competitor to existing thin-film solar cell materials due to its high absorption coefficient (exceeding 10 4 m −1) and appropriate direct bandgap (Eg).