1,720,973 research outputs found
Effects of fluorine in silicon solar cells with polysilicon contacts
No full textThe effects of fluorine on the performance of solar cells with polysilicon contacts at the front surface and at both front and back surfaces are reported. It is shown that a fluorine implant applied to the front surface of the device has two different effects: it improves the passivation of the free oxidised surface leading to improvements in open circuit voltage and short circuit current, and it reduces series resistance. The back polysilicon contact improves the back interface recombination velocity. Specific series resistance values from 0.16 to 0.5 ohm.cm2 have been measured. The effects of the polysilicon contact processing conditions on the short-circuit current, open circuit voltage and spectral response are also discussed
Effects of rapid thermal processing on the current gain and emitter resistance of polysilicon emitter bipolar transistors
No full text
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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