Key issues for the efficiency improvement of silicon basis stacked solar cells

Hamakawa, Y.; Takakura, H.

doi:10.1109/pvsc.2000.915996

Cited by 1 publication

(1 citation statement)

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“…In addition, it is a stable material and does not show degradation with light soaking [1], as observed with amorphous silicon (a-Si). Moreover, due to the differences in their bandgaps, it can be used in tandem solar cells with a-Si [2]. For this reason, the research on nc-Si has been increasing over the last several years.…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of growth of nanocrystalline silicon deposited by hot-wire chemical vapor deposition

Moutinho

Jiang

et al.

Conference Record of the Thirty-First IEEE Photovoltaic Specialists Conference, 2005.

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We have studied the growth of silicon thin films by hot-wire chemical vapor deposition under different conditions of filament temperature (T f) and hydrogen dilution ratio (R). We found that these two parameters have a similar effect on the properties of the deposited films and show how they interact to control the growth dynamics. For relatively low values of T f and/or R, the films are amorphous. An increase in the value of these parameters results in the appearance of a new phase, characterized by heavily faulted (220)-oriented columnar grains; for even higher values, a randomly oriented nanocrystalline phase appears. In general, there is more than one phase present in the film, and the microstructure varies as we go from the bottom to the top of the film. Although T f and R have similar effects on the physical properties, they affect the deposition rate in a different way.

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Section: Introductionmentioning

confidence: 99%