| Current Students: Chuanxiao Xiao ( PSM-PV )
Associated Faculty: Yanfa Yan , Naba R. Paudel, Alvin D. Compaan
|Description: CdTe is a most promising photovoltaics material because of its suitable
bandgap, high absorption coefficient. The theoretical limitation of CdTe cell efficiency
is about 28%, but currently the highest efficiency is 18.7% achieved by First Solar.
Many deposition techniques have been successfully developed for fabricating CdTe cells,
I mainly work on Magnetron Sputtering. And I am trying to understand the mechanism
of relatively poor open circuit voltage of CdTe solar cells and to overcome the current
bottleneck. The projects I have been working on are shown as follows: 1. Chemical
Bath Deposition for CdS as window layer of CdTe cells; 2. Oxygenated sputtered CdS
window layer; 3. CdCl2 treatment of sputtered CdS/CdTe cells. And I am planning to
work more on CdTe layer and AZO as HRT layer.