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Hydrogenated amorphous carbon based solar cells by pulsed laser deposition with mixture of graphite and camphor as precursor materials

Rusop, M. and Tian, X. M. and Soga, T. and Jimbo, T. and Umeno, M. and Sharon, M. (2007) Hydrogenated amorphous carbon based solar cells by pulsed laser deposition with mixture of graphite and camphor as precursor materials. Surface Engineering, 23 (3). pp. 234-238.

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Official URL: http://dx.doi.org/10.1179/174329406X122982

Abstract

The authors have deposited hydrogenated amorphous carbon films (a-C:H) on quartz and p type silicon substrates (100) by pulsed laser deposition (PLD) using a mixture of graphite and camphor powders at room temperature. The presence of hydrogen in the a-C:H films has been revealed by fourier transform infrared spectroscopy (FTIR) measurement. The solar cell structure of a-C:H/p-Si was also fabricated. The formation of a heterojunction between the a-C:H films and silicon substrate was confirmed by the current–voltage (I–V) measurement in the dark and under illumination conditions. The structure of a-C:H/p-Si showed photovoltaic characteristics with an open circuit voltage Voc of 400 mV and short circuit current density Jsc of ~15 mA cm-2 under illumination [air mass (AM) 1·5, 100 mW cm-2, 25°C]. From the calculation, the energy conversion efficiency and fill factor were found to be approximately 2·1% and 0·38 respectively. The carbon layer is contributed to the energy conversion efficiency, which was proved by the measurement of quantum efficiency.

Item Type:Article
Uncontrolled Keywords:solar cell, PLD, camphor, hydrogenated amorphous carbon, graphite,
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:17107
Deposited By: Ramli Haron
Deposited On:25 Nov 2011 09:12
Last Modified:25 Nov 2011 09:12

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