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Characterizations and Analyses of Large-Area a-Si:H/μc-Si:H Thin-Film Solar Modules for Efficiency Optimization

Figure 1

Figure 1
μc-Si:H PECVD system.

Figure 2

Figure 2
QEs of the a-Si:H and μc-Si:H devices.

Figure 3

Figure 3
Secondary ion microspectroscopy measurements for microcrystalline i-layer.

Figure 4

Figure 4
Typical Raman spectrum of the μc-Si:H i-layer.

Figure 5

Figure 5
Distribution of crystallinity on a 2.2 m × 2.6 m μc-Si:H i-layer panel.

Figure 6

Figure 6
Histogram of efficiencies for the production modules.

Figure 7

Figure 7
Formula$I\!-\!V$ curve of a 2.2 m × 2.6 m module.

Figure 8

Figure 8
Five MW PV power station in the Houtian Desert, Nanchang City, China.

Figure 9

Figure 9
Architectural appearance of 1.1 m × 1.3 m modules with the silver color of the outer wall surface.

Figure 10

Figure 10
(a) Building facade with 20% semitransparent PV modules. (b) Appearance of the PV modules from the interior.