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We suggest a cost-efficient way to fabricate the silicon nanowires (SiNWs) for commercial solar cell applications. Vertically aligned SiNWs arrays were prepared on a four-inch silicon wafer using a simple room temperature approach, i.e., metal-assisted electroless etching. Further chemical etching using a 30 wt% aqueous KOH solution at 20°C was performed for adjusting the areal density of NWs while...
Periodically patterned co-integration of silicon microwires (MWs) and nanowires (NWs) were applied for a novel photo-voltaic (PV) nanodevice. The optical improvement due to antireflection enhancement with a graded-refractive-index (GRI) effect (see Fig. 1) was observed by employing the tapered NWs. Si MWs that formed a radial p-n junction were located in between the dense array of Si NWs. These wire...
We propose a method to improve Al thin film in the chemical vapor deposition (CVD) using superior Al precursor, Aluminum borohydride trimethylamine (AlBT). The deposition conditions of AlBT, which can improve factors such as sheet resistance (Rs) and reflective index (R.I.) that are related with the morphology of the CVD-Al film are optimized. The CVD-Al film by this AlBT improves via profiles and...
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