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Broadband quasi-omnidirectional sub-wavelength nanoporous...
Broadband quasi-omnidirectional sub-wavelength nanoporous antireflecting surfaces on glass substrate for solar energy harvesting applications, A. Kumar, H. Chaliyawala, S. Siddhanta, H. C. Barshilia, Solar Energy Materials and Solar Cells, 145 (2016) 432-439, doi: 10.1016/j.solmat.2015.11.014