Back to Search
Start Over
Effects of thermal budget in n-type bifacial solar cell fabrication processes on effective lifetime of crystalline silicon
- Source :
- AIP Advances, Vol 7, Iss 4, Pp 045111-045111-7 (2017)
- Publication Year :
- 2017
- Publisher :
- AIP Publishing, 2017.
-
Abstract
- The effects of residual C on cell properties are investigated from the view point of thermal budget in the n-type bifacial cell processes. Implied Voc obtained from wafers with same Oi concentration depend on the thermal budgets decreases as the Cs concentration increases. The Voc values vary depending on the wafer with different growth cooling rate. To analyze the effect of thermal budget correspond to solar cell fabrication process, CZ wafers with almost the same Oi concentrations are prepared. One of the wafers with relatively high residual Cs concentration shows the longer lifetime than the initial value after the 950 oC annealing step. On the other hand, the lifetime of a wafer with relatively low Cs concentration dramatically decreased by the same process due to the O segregation. These results suggest that it is important to choose appropriate wafer specification, starting with feedstock material, for increasing the solar cell efficiency.
- Subjects :
- 010302 applied physics
Materials science
Silicon
business.industry
Annealing (metallurgy)
General Physics and Astronomy
chemistry.chemical_element
Nanotechnology
02 engineering and technology
Carrier lifetime
Raw material
021001 nanoscience & nanotechnology
01 natural sciences
lcsh:QC1-999
Solar cell efficiency
chemistry
0103 physical sciences
Thermal
Optoelectronics
Wafer
Crystalline silicon
0210 nano-technology
business
lcsh:Physics
Subjects
Details
- ISSN :
- 21583226
- Volume :
- 7
- Database :
- OpenAIRE
- Journal :
- AIP Advances
- Accession number :
- edsair.doi.dedup.....a641d03ba35e084f8c266fa0b0383e9b
- Full Text :
- https://doi.org/10.1063/1.4981138