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CuInSe/sub 2//CdS simulation and modeling
Conference proceeding

CuInSe/sub 2//CdS simulation and modeling

A Rothwarf, I Gonchar, Y Melnikova, F Shapiro, T Lommasson and R.R Arya
The Conference Record of the Twenty-Second IEEE Photovoltaic Specialists Conference - 1991, v 2, pp 1173-1178
1991

Abstract

Absorption Charge carrier density Composite materials Computational Intelligence Society Grain size Least squares methods Numerical analysis Photonic band gap Space charge Voltage
A simulator that can deduce the carrier density and diffusion length from experimental QE (quantum efficiency) curves at different applied voltages has been developed, and applied to CIS solar cells produced by a novel sputtering approach. An analytic expression for the dark diode current of an insulating graded bandgap solar cell has been obtained for the case of the gap increasing linearly away from the junction. The results indicate a diode factor ranging from approximately 1.6 at low voltages to 2 at higher voltages. An increase in open-circuit voltage is expected to be roughly half of the increase in the energy gap, subject, however, to a maximum value set by the smaller of the built-in voltages in the conduction or valence bands.< >

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Web of Science research areas
Energy & Fuels
Engineering, Electrical & Electronic
Physics, Applied
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