Diagnosis of a large distributed series resistance in solar cells

摘要: It is well known that a moderate sheet resistance of the emitter layer solar cell can be modelled as lumped series resistance. has no influence on open-circuit voltage and little short-circuit current. The model enables fill factor loss to calculated. In present paper it shown large leads current-voltage (I–V) characteristics which are not type but instead display presence “light-dependent shunt resistance”. This qualitative diagnosis an important distributed completed using two quantitative diagnostic methods: determination cell, measurement intersection V axis with tangent I–V characteristic at point. latter quantity, we call “short-circuit voltage”, turns out equal about twice voltage, whereas in range 30% – 38%.