Transport boundary conditions for solar cells

Boundary conditions (BCs) to the Poisson and transport equations for stationary transport processes of nonequilibrium carriers in semiconductor structures, including solar cells, are formulated. The applicability of the resulting BCs for solar cells consisting of several various materials (metals, bipolar semiconductors, including ones in the quasineutrality approach) and their structures are analyzed for both closed and open circuit conditions. (C) 2008 Elsevier B.V. All rights reserved.