Abstract
We describe the design of a time resolved photoluminescence (TRPL) spectrometer for rapid semiconductor absorber characterization. Simplicity and flexibility is achieved by using single optical fiber to deliver laser pulses and to collect photoluminescence. We apply TRPL for characterization of CdS/CdTe absorbers after deposition, CdCl2 treatment, Cu doping, and back contact formation. Datasuggest this method could be applied in various stages of PV device processing. Finally, we show how to analyze TRPL data for CdS/CdTe absorbers by considering laser light absorption depth and intermixing at CdS/CdTe interface.
| Original language | American English |
|---|---|
| Number of pages | 8 |
| State | Published - 2012 |
| Event | 2012 IEEE Photovoltaic Specialists Conference - Austin, Texas Duration: 3 Jun 2012 → 8 Jun 2012 |
Conference
| Conference | 2012 IEEE Photovoltaic Specialists Conference |
|---|---|
| City | Austin, Texas |
| Period | 3/06/12 → 8/06/12 |
NREL Publication Number
- NREL/CP-5200-54119
Keywords
- CdTe
- lifetime
- photovoltaics
- PV
- thin film
- time-resolved photoluminescence (TRPL)