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Fig. 2 (a) Schematics of nanospike (NS) array and multiple thin film layers deposited on NSP for
solar cell fabrication. Angular-view SEM images of (b1) nanoconcave (NC 200), (c1) NSP 600,
(d1) NSP 1200, and their corresponding a-Si solar cell at (b2), (c2), and (d2). (e) The integrated
optical absorption under AM 1.5 G solar spectrum with different NSP pitches and heights. (b)
Integrated optical absorption and its calculated J sc under simulated AM 1.5 G solar spectrum in
a-Si layer and the inset image demonstrates the photon absorption profile in the 1.2 μm height
device [16]
Efficient Light Harvesting in the Nanotextured Thin Film Solar Cells
Fig. 2 (a) Schematics of nanospike (NS) array and multiple thin film layers deposited on NSP for
solar cell fabrication. Angular-view SEM images of (b1) nanoconcave (NC 200), (c1) NSP 600,
(d1) NSP 1200, and their corresponding a-Si solar cell at (b2), (c2), and (d2). (e) The integrated
optical absorption under AM 1.5 G solar spectrum with different NSP pitches and heights. (b)
Integrated optical absorption and its calculated J sc under simulated AM 1.5 G solar spectrum in
a-Si layer and the inset image demonstrates the photon absorption profile in the 1.2 μm height
device [16]
Efficient Light Harvesting in the Nanotextured Thin Film Solar Cells