Abstract
Low-temperature absorption studies on free-standing GaP1-xNx films provide direct experimental evidence that the host conduction-band minimum (CBM) near X1C does not plunge downward with increased nitrogen doping, contrary to what has been suggested recently; rather, it remains stationary for x up to 0.1%. This fact, combined with the results of earlier studies of the CBM at ..GAMMA.. andconduction-band edge near L, confirms that the giant bandgap lowering observed in GaP1-xNx results from a CBM that evolves purely from nitrogen impurity bands.
| Original language | American English |
|---|---|
| Number of pages | 5 |
| State | Published - 2005 |
| Event | 2005 DOE Solar Energy Technologies Program Review Meeting - Denver, Colorado Duration: 7 Nov 2005 → 10 Nov 2005 |
Conference
| Conference | 2005 DOE Solar Energy Technologies Program Review Meeting |
|---|---|
| City | Denver, Colorado |
| Period | 7/11/05 → 10/11/05 |
Bibliographical note
Presented at the 2005 DOE Solar Energy Technologies Program Review Meeting held November 7-10, 2005 in Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102006-2245; NREL/CD-520-38557)NLR Publication Number
- NREL/CP-590-39020
Keywords
- impurity-band
- NREL
- photovoltaics (PV)
- PV
- solar
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