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Current vs voltage characteristics of InGaN/GaN solar cells under 385 nm LED illumination (a), and 1 sun AM1.5G illumination (b).
Modeled band diagrams and potentials for sample A (a), B (b), and C (c). The shaded region delineates the higher indium composition layers ( and 9%).
Time-resolved PL and total PL intensity (inset) for all samples.
Absorption vs wavelength for all samples. The arrows indicate the location of the band edges for the various layers.
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