Patent Number: 8,798,961

Title: High speed spectrometer

Abstract: A system for measuring quantum efficiency in a sample photovoltaic cell may include a Fourier transform infrared spectrometer. One or more light source for illuminating the photovoltaic cell in a wavelength range of interest are provided.

Inventors: Johnson; Brady A. (Rossford, OH), Marinskiy; Dmitriy (Tampa, FL)

Assignee: First Solar, Inc.

International Classification: G01J 1/00 (20060101)

Expiration Date: 8/05/12018