Abstract
Polycrystalline thin-film CdTe is one of the leading materials used in photovoltaic solar cells. One way to improve device performance and stability is through understanding how various process steps alter defect states in the CdTe layer. Low-temperature photoluminescence (PL) studies show a 1.456-eV PL peak in single-crystal CdTe that is likely due to a Cui-O Te defect complex. A similar peak, observed in as-deposited glass/SnO2:F/CdS/CdTe thin-film structures, strongly suggests a common origin. The 1.456-eV peak is also seen in a thin-film sample after performing the CdCl2 treatment needed for high efficiencies.
Original language | American English |
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Pages | 197-202 |
Number of pages | 6 |
DOIs | |
State | Published - 2005 |
Event | Thin-Film Compound Semiconductor Photovoltaics: Materials Research Society Symposium - San Francisco, California Duration: 29 Mar 2005 → 1 Apr 2005 |
Conference
Conference | Thin-Film Compound Semiconductor Photovoltaics: Materials Research Society Symposium |
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City | San Francisco, California |
Period | 29/03/05 → 1/04/05 |
NREL Publication Number
- NREL/CP-520-39718