Evaluation of different buffer materials for solar cells with wide-gap Cu2ZnGeSxSe4-x absorbers
| Main Authors: | Schnabel, Thomas, Seboui, Mahmoud, Bauer, Andreas, Choubrac, Leo, Arzel, Ludovic, Harel, Sylvie, Barreau, Nicolas, Alswede, Erik |
|---|---|
| Format: | Article |
| Terbitan: |
, 2017
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/843987 |
Daftar Isi:
- In this work kesterite-type Cu2ZnGeSxSe4-x (CZGSSe) absorbers were coated with four different buffer layer materials: CdS, In2S3, Zn(O,S) and CdIn2S4. A detailed electrical characterization of the resulting solar cells was performed. The highest open-circuit voltage and the best band alignment could be reached with Zn(O,S), whereas the CdS buffer gave the best efficiencies of up to 6%, which is the highest reported efficiency for a CZGSSe absorber.