| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1674676 | Thin Solid Films | 2006 | 5 Pages |
Abstract
The presence of a back-contact barrier affects the current–voltage characteristics of thin-film CdS/CdTe/metal solar cells primarily by impeding hole transport, a current-limiting effect commonly referred to as “rollover.” In this work, the CdS/CdTe solar cell with a CdTe/metal back-contact barrier is modeled by two opposite polarity diodes in series. Analytic simulations are fitted to the measured current–voltage curve, the voltage distribution between the two diodes is shown under different conditions, and the back-contact barrier height is extracted. Room-temperature barrier heights exceeding 0.5 eV will generally result in significant fill-factor reduction.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
S.H. Demtsu, J.R. Sites,