Narottam Das

Central Queensland University Australia

Narottam Das received BSc and MSc degree in Electrical and Electronic Engineering from Chittagong University of Engineering & Technology, and Bangladesh University of Engineering & Technology, Bangladesh, respectively. He received PhD degree in Systems and Information Engineering from Yamagata University, Japan in 2000. Currently he is working as a Lecturer at the School of Mechanical and Electrical Engineering, University of Southern Queensland, Toowoomba, QLD, Australia. He is also an Adjunct Senior Research Fellow at the Department of Electrical and Computer Engineering, Curtin University, Perth, Australia. Earlier, he worked at Curtin University, Edith Cowan University and Monash University, Australia; NEC Yamagata Ltd., Japan and Bangladesh Export Import Company, Dhaka. He is the author/co-author of books, book chapters, over 135 referred international journal papers and conference proceedings, and over 20 industrial technical reports at NEC Japan. Dr. Das is a senior member of the IEEE, member of the Institute of Engineers, Australia, and life fellow of the Institute of Engineers, Bangladesh.

4books edited

4chapters authored

Latest work with IntechOpen by Narottam Das

Nanostructured solar cells are very important in renewable energy sector as well as in environmental aspects, because it is environment friendly. The nano-grating structures (such as triangular or conical shaped) have a gradual change in refractive index which acts as a multilayer antireflective coating that is leading to reduced light reflection losses over broadband ranges of wavelength and angle of incidence. There are different types of losses in solar cells that always reduce the conversion efficiency, but the light reflection loss is the most important factor that decreases the conversion efficiency of solar cells significantly. The antireflective coating is an optical coating which is applied to the surface of lenses or any optical devices to reduce the light reflection losses. This coating assists for the light trapping capturing capacity or improves the efficiency of optical devices, such as lenses or solar cells. Hence, the multilayer antireflective coatings can reduce the light reflection losses and increases the conversion efficiency of nanostructured solar cells.

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