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We investigate the effects of p a-Si:H emitter layer defects on n-type silicon heterojunction solar cells (SHJ) by experimental and simulated device analysis. Simulation of interdigitated back contact heterojunction (IBC-SHJ) solar cells shows that reducing the p-layer dangling bond density (Ddb) > 5×1018 cm−3eV−1 is an effective way to simultaneously increase VOC and FF. We use front and rear...
Crystalline Si (c-Si) solar cell production has reached an annual scale of ∼20 GW globally. Development of this leading technology has been boosted by continuous innovation in material science and reduced material and processing costs. An example of such innovation is the step-wise progression to more lightly doped emitters (LDE) that reduces recombination in the solar cell. Continuous improvement...
Terahertz wire-grid polarizer with 500 nm grating period on high resistivity silicon (100) is fabricated using nanoimprinting lithography (NIL). Preliminary results show a good polarization characteristic ranging from 0.5 to 5 THz. The method is high throughput and low cost.
The microstructure and electromagnetic properties of FeCoB-SiO2 thin films which were deposited on different substrates (silicon, glass and Mylar) by using magnetron sputtering were studied. X-Ray Diffraction revealed that FeCo nanocrystalline only precipitated in FeCoB-SiO2 thin films on silicon and glass substrates, and the FeCoB-SiO2 films on Mylar substrate were amorphous. The surface images obtained...
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