Research data supporting "Role of Nanoscale Compositional Inhomogeneities in Limiting The Open Circuit Voltage in Cu(In,Ga)S2 Solar Cells"

Datasets associated with the Publication "Role of Nanoscale Compositional Inhomogeneities in Limiting The Open Circuit Voltage in Cu(In,Ga)S2 Solar Cells" . All data was acquired in an Attolight Allalin 4027 Chronos dedicated CL-SEM with a 150 l/mm and 500 nm blazed grating. All measurements were taken at room temperature with an electron beam acceleration voltage of 6.0 kV and a current of 3.0 nA with 90% of the beam energy being deposited within a depth of ~ 150 nm according to Monte Carlo CASINO simulations. Initial CL images were observed to suffer from significant drift due to charging, so the samples were carbon-coated to improve the conduction of the beam electrons away from the surface. All data treatment was performed using the Python hyperspy library.