Abstract
Low-angle (311) V-grooves can be produced on a (100) InP surface by a maskless anisotropic etch. This can reduce the surface reflectivity of a glass-covered InP solar cell. Light reflected from grooved surface is trapped by total internal reflection at the glass/air interface and directed back to the solar cell. Results from ITO/InP solar cells on low-angle V-grooved substrates are presented, showing a 5.8% increase in short-circuit current, and a nearly equal rise in efficiency.
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