Photovoltaic glazing from bottom-up electrodeposition of CIGS on patterned Mo/Glass Substrates

摘要

In this paper, semi-transparent solar cells using Cu (Inl-xGax) Se2 (CIGS) semiconductors as absorber for BIPV applications is presented. The elaboration process consists in the electrodeposition of a metallic stack onto a sub millimetric hole-patterned molybdenum substrate, followed by thermal selenization. This method allows the selective deposition of the metallic stack and the CIGS growth only on Mo-covered areas. In addition, series interconnection following the P1P2P3 method was carried out to produce minimodules. Several large area devices have been manufactured with a transparency of 50%, leading to an efficiency of 3.5% (Voc of 7.6 V and I_(sc) of 50 mA). On isolated cells, a maximum efficiency of 7.2%, corresponding to a Voc of 365 mV, a J_(sc) of 36 mA/cm~2 and a fill factor of 55%, was measured.