MoSe2 / Polyaniline Solar Cells

Author(s) H.S. Patel1, J.R. Rathod2, K.D. Patel1 , V.M. Pathak1, R. Srivastava1

1 Department of Physics, S. P. University, Vallabh Vidhyanagar  388 120, Gujarat, India

2 D.J.M. Institute of technology and research, Mogar  388 340, Gujarat, India

Issue Volume 3, Year 2011, Number 1, Part 4
Dates Received 04 February 2011, published online 17 October 2011
Citation H.S. Patel, J.R. Rathod, K.D. Patel, V.M. Pathak, R. Srivastava, J. Nano- Electron. Phys. 3 No1, 741 (2011)
PACS Number(s) 42.70.jk, 42.79. – e, 42.79.Ek, 82.35.Cd
Key words Polyaniline (3) , MoSe2 (2) , Photovoltage photocurrentdensity characteristics, Photo conversion efficiency, Solar cells (13) .
Solar cells have been investigated since long for harnessing the solar energy. During this decade, a new direction has come up where in the polymers have been used in the fabrication of solar cells. Polyaniline is one of the polymers which has shown potential for its applications in heterostructure solar cells. This material is being used along with the semiconductors like InSe, TiO2, Si etc. to form the photosensitive interface. In this direction, we report our investigations on the use of Molybdenum diselenide (MoSe2) as photosensitive semiconducting material in MoSe2 / polyaniline solar cells. In this paper, the preparation of MoSe2 / polyaniline solar cells has been reported. Also, the photovoltage → photocurrent characteristics of this structure have been discussed in detail in this paper. The variation of different parameters of MoSe2 / polyaniline solar cells (like open circuit voltage, short circuit current, photoconversion efficiency and fill factor) with the intensity of incident illuminations has been reported in this paper. In present case, the photocurrent density was found to be around 250 µA/cm2 with the photovoltage around 8.5 mV (which is low) the photoconversion efficiency was found to be around 0.7 % along with the fill factor around 0.33. The efforts have been made to explain the low values of the photoconversion efficiency.