CIGS thin-film solar module processing: case of high-speed laser scribing

CIGS thin-film solar module processing: case of high-speed laser scribing

In this paper, we investigate the laser processing of the CIGS thin-film solar cells in the case of the high-speed regime. The modern ultra-short pulsed laser was used exhibiting the pulse repetition rate of 1 MHz. Two main P3 scribing approaches were investigated - ablation of the full layer stack to expose the molybdenum back-contact, and removal of the front-contact only. The scribe quality ...

Modelling and Degradation Characteristics of Thin-film CIGS Solar Cells

Laser Scribing: a Key Enabling Technology for Manufacturing of Low Cost Thin Film Photovoltaic Cells

Solar cells are becoming a highly promising alternative energy source for various markets. In the last five years or so a tremendous amount of research effort has been put into increasing the efficiency of solar cell technology and reducing its manufacturing cost. It is believed that success in both of these areas will further propel its use in various markets. The two major structures commerci...

Towards high efficiency thin film solar cells

As an alternative to single crystal silicon photovoltaics, thin film solar cells have been extensively explored for miniaturized cost-effective photovoltaic systems. Though the fight to gain efficiency has been severely engaged over the years, the battle is not yet over. In this review, we comb the fields to elucidate the strategies towards high efficiency thin films solar cells and provide poi...

Optical Simulation of Light Management in CIGS Thin-Film Solar Cells Using Finite Element Method

In this paper we present an optical simulation of light management in Cu(In,Ga)Se2 thin-film solar cells with reduced absorber layer thickness, with the goal of absorption enhancement in the absorber layer. The light management was achieved by texturing of the substrate layer, and the conformal growth of all the following layers was assumed. Two texturing shapes have been explored: triangular a...