First quantum correction to entropy of Vaidya－Bonner black holes due to arbitrary spin fields

Using the improved brick-wall model,we have calculated the first quantum correction to the entropy of non-staticblack holes,Vaidya-Bonner black holes,due to the gravitational,electro-magnetic and neutrino fields.The result shows that both bosonic entropy and fermionic entropy are exactly proportional to the area of the event horizon.Thus,the entropy-area law still holds in such a non-static case.