![]() ![]() Unfortunately, one of the main drawbacks of Si solar cells is their limited efficiency absorption of long wavelength sunlight. Using photovoltaic cells, the energy of sunlight can be converted into electricity. Solar energy remains one of the most common renewable energy sources. Broadband reflection between 3 nm wavelengths has been suppressed to 2% for nano-grass Solar cell and maximum efficiency of 16.57% is achieved. Eventually all the spin doped silicon nano-grass solar cell with sol–gel Al2O3 passivation provides a very promising route of cost effective high efficiency silicon solar cell technology. Later front surface has been passivated by sol–gel Al2O3 passivation. The sheet resistance of the nano-grass silicon wafer is varied with respect to different spin-on diffusion profile. ![]() Adopting the idea by simulation method this paper has reported silicon front sided nano-grass n-type c-Si solar cell by spin on diffusion source and rapid thermal annealing. The detrimental effect of nano-grass formation on both side of the wafer is briefly demonstrated here by simulation methods. This results in ultimate reduction of efficiency. During this chemical etching unwanted nanograss is formed on both side of the wafer, resulting considerable transmission loss from rear side. Highly ordered silicon nano-grass is formed by chemical etching process. Silicon nano-grass Solar cell has the advantage of enhancing efficiency with cost effective method. ![]()
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