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Опубликовано 2014-09-13 Опубликовано на SciPeople2014-09-13 20:31:41 ЖурналCanadian Journal of Physics


P- and n-type microcrystalline silicon oxide (μc-SiOx:H) for applications in thin film silicon tandem solar cells
V. Smirnov, A. Lambertz, S. Tillmanns, F. Finger / Vladimir Smirnov
Can. J. Phys. 92, 932–935 (2014)
Аннотация We report on the development and application of p- and n-type hydrogenated microcrystalline silicon oxide (μc-SiOx:H) alloys in tandem thin film silicon solar cells. Our results show that the optical, electrical, and structural properties of μc-SiOx:H can be conveniently tuned over a wide range to fulfil the requirements for solar cell applications. We have shown that adding of PH3 gas during deposition tends to increase crystallinity of μc-SiOx:H layers, while additional trimethylboron (TMB) tends to suppress crystalline growth. When applied in tandem solar cells, both p- and n-type μc-SiOx:H lead to a remarkable increase in the top cell current. Taking advantage of low refractive index and high optical band gap of μc-SiOx:H allows the achievement of high efficiencies of 13.1% (initial) and 11.8% (stabilized).
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