期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 100, 期 -, 页码 65-68出版社
ELSEVIER
DOI: 10.1016/j.solmat.2011.02.029
关键词
Silicon quantum dot solar cells; Doping type determination; MOS; CV
We have fabricated solar cells with layers of co-sputtered silicon and silicon dioxide. The diode structures were fabricated by sputtering alternating layers of SiO2 and silicon rich oxide onto quartz substrates with in-situ boron, for p-type, and phosphorus, for n-type, doping. After crystallization at 1100 degrees C, isolated Si-nanocrystals are formed. The thin film layers containing these crystals act as n-type or p-type semiconductors as determined from CV measurements on MOS structures. The dark and illuminated I-Vs of the fabricated diodes show a rectifying behavior with an open circuit voltage of 492 mV under a simulated 1.5AMD illumination. A circuit model is proposed to explain the observed I-V characteristics. (C) 2011 Elsevier B.V. All rights reserved.
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