Improvement the Open Circuit Voltage of Amorphous Silicon Solar Cells by Treating the P Layer with Hydrogen Plasma

Abstract:

It is necessary to improve the open circuit voltage of amorphous silicon solar cells for its applications. In this paper, we discuss the effects of hydrogen plasma treatment on the P layer and the performance of the amorphous silicon solar cells. The result shows that the open circuit voltage increased by 0.0257V, the fill factor increased by 0.039 and the energy conversion efficiency increased by 9%. The highest V_OC we got was 0.99V. Treating P layer with hydrogen plasma has been demonstrated to result in materials with improved crystalline volume fraction which was very effective to increase the light absorption of the intrinsic layer. What is more, it could be easily integrated into the amorphous silicon solar cell mass production process.

• Periodical: Solid State Phenomena (Volumes 181-182)
• Pages: 328-331
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.181-182.328
• Online since: November 2011
• Authors: Ming Ji Shi, Lei Xiong, Lan Li Chen
• Keywords: Amorphous Silicon Solar Cell, Crystalline Volume Fraction, Hydrogen Plasma Treatment, Open Circuit Voltage, Photon-Generated Carriers

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