Initially considered a cheap alternative to conventional silicon solar panels, the thin-film solar was expected to take over the market. However, soon after the release of silicon solar panels, the interested in thin-film solar disappeared.
The guys at Solexant, however, are convinced that the cheap energy at less than $1 a watt, the low price of the solar panels and the relatively cheap and fast construction of factories for thin-film solar could bring the industry back to the market.
But the biggest limitation of the technology is still apparent. The need to reduce cost of installations of solar panels is much more pressing than cutting down the price of the panels themselves. The only way to do this is by making high efficiency solar panels, and these are definitely not the thin-film ones.
Although the engineers in Solexant have replaced cadmium telluride semiconductors with CIGS ones in order to increase the efficiency of the panels, the end result is much lower efficiency than that of conventional silicon solar panels.
It remains to be seen if the company is going to be able to sustain itself until the demand for the technology increases again.