HIGH-EFFICIENCY CdTe SOLAR CELLS ON COMMERCIAL SnO SnO2/SODA-LIME GLASS /PREPARED BY NOVEL MANUFACTURING PROCESS

摘要

We report a novel manufacturing process to produce high-efficiency CdTe devices on low-cost commercial SnO SnO2/soda-lime /(SL) glass substrates. The modified SL-glass/SnO SnO2/ZTO/nano-CdS:O/CdTe /device structure developed at NREL has been used in this process. In this device structure, a nanostructured CdS window layer replaced the poly-CdS film in the conventional device structure, and a zinc-tin-oxide film was integrated into a CdTe cell as a buffer layer located between the SnO SnO2 and the nano-CdS:O film. We have prepared a number of CdTe cells on commercial SnO SnO2/SL /glass substrates with NREL-confirmed total-area efficiencies of more than 14%. This new process provides an attractive alternative for producing CdTe modules with the potential of high throughput and low cost.