Usha, K. and Mondal, B. and Sengupta, D. and Das, P. and Mukherjee, K. and Kumbhakar, P. (2014) Development of multilayered nanocrystalline TiO2 thin films for photovoltaic application. Optical Materials, 36 (6). pp. 1070-1075.

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Nanocrystalline multilayered thin films of TiO2 have been prepared to achieve high transparency in the wavelength range of 400–800 nm having good adhesion to the ITO substrate. TiO2 sol is synthesized through wet chemical route for making thin films by dip coating process. The layer wise optical characterization reveals higher band gap values of 3.45 eV, 3.32 eV for 2-layered and 3-layered films respectively while further depositions of thin layers followed by annealing treatment shows that the value of band gap approaches towards the bulk TiO2 considerable decrease in band gap with increase in thickness due to successive coatings of thin film is observed because of growth in crystal size as well as improving the grain contact on successive annealing treatments. Photo-conversion efficiency of the assembled solar cell is in the order of 7%.

Item Type: Article
Subjects: Photovoltaic materials
Depositing User: Dr. Sarita Ghosh
Date Deposited: 22 Sep 2016 06:13
Last Modified: 22 Sep 2016 06:13

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