| AVS 55th International Symposium & Exhibition | |
| Energy Science and Technology Focus Topic | Wednesday Sessions |
| Session EN+AS+TF+VT+NC-WeA |
| Session: | Energy: Tools and Approaches |
| Presenter: | W.S. Sampath, Colorado State University |
| Authors: | W.S. Sampath, Colorado State University R.A. Enzenroth, AVA Solar Inc. K.L. Barth, AVA Solar Inc. V. Manivannan, Colorado State University K. Barricklow, AVA Solar Inc. P. Noronha, AVA Solar Inc. |
| Correspondent: | Click to Email |
A continuous, in-line process suitable for high throughput manufacturing of CdS/CdTe photovoltaic devices has been demonstrated. Utilizing this process, devices with efficiencies of 13% has been fabricated with a low iron soda lime glass (3”x3”) with ant-reflection coatings. The process has been extended to large area devices (16” x16” substrate size). After CdCl2 treatment, devices showed Voc > 700 mV and Jsc > 20 mA/cm2. This performance is similar to the performance of small area devices which showed good stability. Also we have employed many methods including Spectroscopic Ellipsometry (SE) as a non-destructive tool to characterize CdS/CdTe heterojunction specifically studying the effects of processing on the optical properties of the thin-film layers.