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(Color online) Cell photograph. Each of the four busbars is wide. Active area within the . Busbar . Gross .
(a) Solar miniconcentrator ( diameter) with concentrated sunlight transmitted indoors via an optical fiber (see Ref. 8). Input power is moderated by an iris at the concentrator entry that preserves the angular distribution of delivered sunlight. (b) Fiber-cell contact in LIP mode. (c) Uniform irradiation of the cell area within the busbars by a kaleidoscope.
(Color online) Dependence of (a) , (b) , and (c) FF on and its distribution. Placements of the 1.0 and fibers are indicated. In (a), the data for uniform illumination were obtained with a flash solar simulator, and the linear fit of the lower-flux regime (dotted line) highlights the deviation from linear behavior at higher flux. The experimental uncertainties are 0.5%, 2%, and 5% (relative) for , FF, and , respectively.
(Color online) Cell performance tested with two positions of the fiber. (a) Linear plot of . The inset with center and corner sitings of the fiber. Semilogarithmic plots of (b) and (c) FF.
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