The crystalline silicon thin-film solar cell combines, in principle, the ad
vantages of crystalline silicon wafer-based solar cells and of thin-film so
lar cell technologies. Its efficiency potential is the highest of all thin-
film cells. In the "high-temperature approach" thin silicon layers are depo
sited on substrates that withstand processing temperatures higher than 1000
degrees C. The basic features of the high-temperature crystalline silicon
thin-film cell technology are described and some important results are disc
ussed.