Ontology type: schema:ScholarlyArticle
2012-08-06
AUTHORSM. A. Mintairov, V. V. Evstropov, N. A. Kalyuzhnyi, C. A. Mintairov, N. Kh. Timoshina, M. Z. Shvartz, V. M. Lantratov
ABSTRACTA method for determining the series resistance Rs of multijunction solar cells is suggested and sub-stantiated. The method uses the presence of a maximum in the dependence of the efficiency on the sunlight concentration ratio η(X) or in that of the operating voltage on the photogenerated current, Vm(Jg). The study employs the concept that, in a limited but practically important range of photogenerated currents (up to the maximum η), the series resistance can be represented by a fixed quantity that is linear and independent of Jg. It is analytically substantiated that this resistance can be found from the formula RS = (E/Jg)η = max, where E = AkT/q and A and Jg are local values of the ideality factor and photogenerated current at the maximum η (or Vm). It is shown that the value of Rs, determined by this method, is independent of the spectral composition of the incident light, which was experimentally confirmed in a study of the photovoltaic characteristics of triple-junction InGaP/GaAs/Ge solar cells. The method is suitable for both multi- and single-junction photoelectric converters. More... »
PAGES1051-1058
http://scigraph.springernature.com/pub.10.1134/s1063782612080143
DOIhttp://dx.doi.org/10.1134/s1063782612080143
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