CdTe solar cells on flexible ultra-thin glass substrates produced by MOCVD: bending tests, residual stress and PV performance

摘要

Thin film technologies based on ultra-thin glass (UTG) substrates are highly attractive to produce large area lightweight and flexible photovoltaic devices. The suitability of UTG to roll-to-roll processes could significantly reduce fabrication costs. UTG has been widely used in optoelectronic display applications. Studies on the deposition processes, mechanical behaviour and electronic properties have demonstrated a progressive enhancement in performance of solar cells devices produced with flexible substrates made of metal, polyimide and on UTG.