Author/Authors :
B. and Stannowski، نويسنده , , B. and Gabriel، نويسنده , , O. and Calnan، نويسنده , , S. and Frijnts، نويسنده , , T. and Heidelberg، نويسنده , , A. and Neubert، نويسنده , , S. and Kirner، نويسنده , , S. and Ring، نويسنده , , S. and Zelt، نويسنده , , M. and Rau، نويسنده , , B. and Zollondz، نويسنده , , J.-H. and Bloess، نويسنده , , H. and Schlatmann، نويسنده , , R. L. Rech، نويسنده , , B.، نويسنده ,
Abstract :
This paper addresses the achievements and challenges in a-Si:H/µc-Si:H tandem solar cell technology including production aspects. As an example we show figures of the module production at Masdar PV, with module conversion efficiencies reaching 10%. The process integration was supported by PVcomB, namely, by developing improved PECVD processes and transferring them to Masdar PV. The important role of the TCO substrate for producing high-efficiency modules at lowest possible costs is discussed. We show the results of tandem cells on thermally annealed ZnO:Al substrates, resulting in an improvement of 0.4–0.5% (abs) as a result of the TCO annealing, reaching a stable efficiency of 12.1% for a 1 cm² solar cell and 11.6% for a mini module. The challenges in developing thin film silicon solar modules with higher efficiency than presently reached are discussed.
Keywords :
a-Si:H/µc-Si:H solar cells , Solar module production , plasma-enhanced chemical vapor deposition , transparent conducting oxide , Zinc oxide
